Gecko [ nrupathungauniversityblr.ac.in ]

Name	Size	Permission
.deps	[ DIR ]	drwxrwxr-x
.libs	[ DIR ]	drwxrwxr-x
.dirstamp	0 B	-rw-rw-r--
ImageMagick-7.Q16HDRI.pc	867 B	-rw-rw-r--
ImageMagick.pc	867 B	-rw-rw-r--
ImageMagick.pc.in	575 B	-rw-rw-r--
MagickCore-7.Q16HDRI.pc	916 B	-rw-rw-r--
MagickCore-config	1.5 KB	-rwxrwxr-x
MagickCore-config.1	1.85 KB	-rw-rw-r--
MagickCore-config.in	1.57 KB	-rw-rw-r--
MagickCore.h	4.94 KB	-rw-rw-r--
MagickCore.pc	916 B	-rw-rw-r--
MagickCore.pc.in	688 B	-rw-rw-r--
Makefile.am	14.76 KB	-rw-rw-r--
accelerate-kernels-private.h	102.16 KB	-rw-rw-r--
accelerate-private.h	2.63 KB	-rw-rw-r--
accelerate.c	169.72 KB	-rw-rw-r--
animate-private.h	1.23 KB	-rw-rw-r--
animate.c	103.29 KB	-rw-rw-r--
animate.h	979 B	-rw-rw-r--
annotate-private.h	1022 B	-rw-rw-r--
annotate.c	71.69 KB	-rw-rw-r--
annotate.h	1.26 KB	-rw-rw-r--
artifact.c	18.74 KB	-rw-rw-r--
artifact.h	1.35 KB	-rw-rw-r--
attribute.c	69.33 KB	-rw-rw-r--
attribute.h	1.78 KB	-rw-rw-r--
blob-private.h	4.07 KB	-rw-rw-r--
blob.c	207.68 KB	-rw-rw-r--
blob.h	3.29 KB	-rw-rw-r--
cache-private.h	6.63 KB	-rw-rw-r--
cache-view.c	44.83 KB	-rw-rw-r--
cache-view.h	3.63 KB	-rw-rw-r--
cache.c	211.11 KB	-rw-rw-r--
cache.h	2.5 KB	-rw-rw-r--
channel.c	41.69 KB	-rw-rw-r--
channel.h	1.28 KB	-rw-rw-r--
cipher.c	40.58 KB	-rw-rw-r--
cipher.h	1.11 KB	-rw-rw-r--
client.c	7.37 KB	-rw-rw-r--
client.h	1.03 KB	-rw-rw-r--
coder-private.h	1005 B	-rw-rw-r--
coder.c	20.03 KB	-rw-rw-r--
coder.h	1.28 KB	-rw-rw-r--
color-private.h	2.28 KB	-rw-rw-r--
color.c	105.5 KB	-rw-rw-r--
color.h	2.22 KB	-rw-rw-r--
colormap-private.h	1.8 KB	-rw-rw-r--
colormap.c	13.3 KB	-rw-rw-r--
colormap.h	1.05 KB	-rw-rw-r--
colorspace-private.h	4.23 KB	-rw-rw-r--
colorspace.c	99.03 KB	-rw-rw-r--
colorspace.h	2.35 KB	-rw-rw-r--
compare.c	72.32 KB	-rw-rw-r--
compare.h	1.86 KB	-rw-rw-r--
composite-private.h	5.5 KB	-rw-rw-r--
composite.c	81.18 KB	-rw-rw-r--
composite.h	2.85 KB	-rw-rw-r--
compress.c	39.93 KB	-rw-rw-r--
compress.h	2.15 KB	-rw-rw-r--
configure-private.h	1019 B	-rw-rw-r--
configure.c	44.68 KB	-rw-rw-r--
configure.h	1.65 KB	-rw-rw-r--
constitute-private.h	890 B	-rw-rw-r--
constitute.c	50.54 KB	-rw-rw-r--
constitute.h	1.45 KB	-rw-rw-r--
decorate.c	31.1 KB	-rw-rw-r--
decorate.h	1.34 KB	-rw-rw-r--
delegate-private.h	2.16 KB	-rw-rw-r--
delegate.c	83.77 KB	-rw-rw-r--
delegate.h	1.98 KB	-rw-rw-r--
deprecate.c	13.45 KB	-rw-rw-r--
deprecate.h	1.21 KB	-rw-rw-r--
display-private.h	1.24 KB	-rw-rw-r--
display.c	515.56 KB	-rw-rw-r--
display.h	1.05 KB	-rw-rw-r--
distort.c	134.29 KB	-rw-rw-r--
distort.h	2.65 KB	-rw-rw-r--
distribute-cache-private.h	2.24 KB	-rw-rw-r--
distribute-cache.c	49.1 KB	-rw-rw-r--
distribute-cache.h	997 B	-rw-rw-r--
draw-private.h	2.1 KB	-rw-rw-r--
draw.c	245.29 KB	-rw-rw-r--
draw.h	5.55 KB	-rw-rw-r--
effect.c	125.86 KB	-rw-rw-r--
effect.h	2.85 KB	-rw-rw-r--
enhance.c	137.51 KB	-rw-rw-r--
enhance.h	2.32 KB	-rw-rw-r--
exception-private.h	3.18 KB	-rw-rw-r--
exception.c	44.49 KB	-rw-rw-r--
exception.h	4.35 KB	-rw-rw-r--
feature.c	83.79 KB	-rw-rw-r--
feature.h	1.7 KB	-rw-rw-r--
fourier.c	49.36 KB	-rw-rw-r--
fourier.h	1.38 KB	-rw-rw-r--
fx-private.h	1.21 KB	-rw-rw-r--
fx.c	87.87 KB	-rw-rw-r--
fx.h	956 B	-rw-rw-r--
gem-private.h	6.28 KB	-rw-rw-r--
gem.c	53.31 KB	-rw-rw-r--
gem.h	1.15 KB	-rw-rw-r--
geometry.c	55.44 KB	-rw-rw-r--
geometry.h	3.98 KB	-rw-rw-r--
histogram.c	39.72 KB	-rw-rw-r--
histogram.h	1.35 KB	-rw-rw-r--
identify.c	57.07 KB	-rw-rw-r--
identify.h	971 B	-rw-rw-r--
image-private.h	2.89 KB	-rw-rw-r--
image-view.c	42.98 KB	-rw-rw-r--
image-view.h	2.72 KB	-rw-rw-r--
image.c	142.86 KB	-rw-rw-r--
image.h	13.87 KB	-rw-rw-r--
layer.c	75.49 KB	-rw-rw-r--
layer.h	2 KB	-rw-rw-r--
libMagickCore-7.Q16HDRI.la	1.32 KB	-rw-rw-r--
libMagickCore.map	46 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-acc...	374 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-acc...	6.25 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ani...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ani...	245.7 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ann...	368 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ann...	225.34 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-art...	368 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-art...	57.34 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-att...	371 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-att...	198.58 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-blo...	356 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-blo...	559.89 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-cac...	374 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-cac...	130.77 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-cac...	359 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-cac...	575.03 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-cha...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-cha...	132.27 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-cip...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-cip...	99.63 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-cli...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-cli...	11.99 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-cod...	359 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-cod...	48.66 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-col...	359 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-col...	187.05 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-col...	368 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-col...	64.29 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-col...	374 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-col...	416.23 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-com...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-com...	244.2 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-com...	371 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-com...	205.62 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-com...	368 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-com...	116.91 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-con...	371 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-con...	92.49 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-con...	374 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-con...	134.21 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-dec...	368 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-dec...	140.39 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-del...	368 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-del...	181.88 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-dep...	371 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-dep...	40.1 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-dis...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-dis...	1001.06 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-dis...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-dis...	257.94 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-dis...	392 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-dis...	138.98 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-dra...	356 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-dra...	629.21 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-eff...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-eff...	359.09 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-enh...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-enh...	435.72 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-exc...	371 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-exc...	79.98 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-fea...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-fea...	231.75 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-fou...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-fou...	147.25 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-fx....	350 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-fx....	285.02 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-gem...	353 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-gem...	222.46 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-geo...	368 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-geo...	111.41 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-his...	371 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-his...	103.51 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ide...	368 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ide...	183.14 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ima...	374 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ima...	103.35 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ima...	359 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ima...	311.29 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-lay...	359 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-lay...	140.62 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-lin...	377 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-lin...	41.23 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-lis...	356 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-lis...	137.44 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-loc...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-loc...	93.1 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-log...	353 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-log...	109.05 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mag...	359 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mag...	54.52 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mag...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mag...	123.44 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mat...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mat...	90.06 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mem...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mem...	64.4 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mim...	356 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mim...	69.73 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mod...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mod...	46.27 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mon...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mon...	37.7 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mon...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mon...	102.55 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mor...	374 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-mor...	249.84 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ope...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ope...	14.32 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-opt...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-opt...	238.09 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-pai...	359 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-pai...	158.05 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-pix...	359 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-pix...	1.12 MB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-pol...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-pol...	84.46 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-pre...	368 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-pre...	50.55 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-pro...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-pro...	178.05 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-pro...	368 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-pro...	375.58 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-qua...	368 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-qua...	308.11 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-qua...	386 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-qua...	886.72 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-qua...	386 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-qua...	690.47 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-qua...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-qua...	93.22 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ran...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ran...	71.95 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-reg...	368 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-reg...	58.8 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-res...	368 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-res...	101.68 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-res...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-res...	484.14 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-res...	368 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-res...	130.89 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-seg...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-seg...	137.09 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-sem...	371 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-sem...	27.5 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-she...	359 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-she...	209.97 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-sig...	371 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-sig...	77.59 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-spl...	374 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-spl...	71.54 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-sta...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-sta...	42.69 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-sta...	371 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-sta...	361.96 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-str...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-str...	389.89 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-str...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-str...	145.78 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-thr...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-thr...	9.66 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-thr...	371 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-thr...	223.15 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-tim...	359 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-tim...	38.76 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-tok...	359 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-tok...	220.66 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-tra...	371 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-tra...	228.2 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-typ...	356 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-typ...	88.52 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-uti...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-uti...	121.42 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ver...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-ver...	27.84 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-vis...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-vis...	161.29 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-vis...	386 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-vis...	490.88 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-wid...	362 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-wid...	450.54 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-xml...	368 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-xml...	166.75 KB	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-xwi...	365 B	-rw-rw-r--
libMagickCore_7_Q16HDRI_la-xwi...	641.91 KB	-rw-rw-r--
linked-list.c	33.55 KB	-rw-rw-r--
linked-list.h	1.92 KB	-rw-rw-r--
list.c	52.79 KB	-rw-rw-r--
list.h	2.3 KB	-rw-rw-r--
locale-private.h	1.35 KB	-rw-rw-r--
locale.c	58.89 KB	-rw-rw-r--
locale_.h	2.2 KB	-rw-rw-r--
log-private.h	1 KB	-rw-rw-r--
log.c	56.53 KB	-rw-rw-r--
log.h	2.73 KB	-rw-rw-r--
magic-private.h	999 B	-rw-rw-r--
magic.c	27.52 KB	-rw-rw-r--
magic.h	1.32 KB	-rw-rw-r--
magick-baseconfig.h	44.5 KB	-rw-rw-r--
magick-config.h	8.75 KB	-rw-rw-r--
magick-private.h	1.04 KB	-rw-rw-r--
magick-type.h	5.78 KB	-rw-rw-r--
magick.c	66.91 KB	-rw-rw-r--
magick.h	4.18 KB	-rw-rw-r--
matrix-private.h	1.1 KB	-rw-rw-r--
matrix.c	38.14 KB	-rw-rw-r--
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montage.c	32.5 KB	-rw-rw-r--
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Code Editor : channel.c

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%               CCCC  H   H   AAA   N   N  N   N  EEEEE   L                   %
%              C      H   H  A   A  NN  N  NN  N  E       L                   %
%              C      HHHHH  AAAAA  N N N  N N N  EEE     L                   %
%              C      H   H  A   A  N  NN  N  NN  E       L                   %
%               CCCC  H   H  A   A  N   N  N   N  EEEEE   LLLLL               %
%                                                                             %
%                                                                             %
%                      MagickCore Image Channel Methods                       %
%                                                                             %
%                              Software Design                                %
%                                   Cristy                                    %
%                               December 2003                                 %
%                                                                             %
%                                                                             %
%  Copyright 1999-2020 ImageMagick Studio LLC, a non-profit organization      %
%  dedicated to making software imaging solutions freely available.           %
%                                                                             %
%  You may not use this file except in compliance with the License.  You may  %
%  obtain a copy of the License at                                            %
%                                                                             %
%    https://imagemagick.org/script/license.php                               %
%                                                                             %
%  Unless required by applicable law or agreed to in writing, software        %
%  distributed under the License is distributed on an "AS IS" BASIS,          %
%  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %
%  See the License for the specific language governing permissions and        %
%  limitations under the License.                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%
%
*/

/*
  Include declarations.
*/
#include "MagickCore/studio.h"
#include "MagickCore/cache-private.h"
#include "MagickCore/channel.h"
#include "MagickCore/colorspace-private.h"
#include "MagickCore/composite-private.h"
#include "MagickCore/enhance.h"
#include "MagickCore/image.h"
#include "MagickCore/list.h"
#include "MagickCore/log.h"
#include "MagickCore/monitor.h"
#include "MagickCore/monitor-private.h"
#include "MagickCore/option.h"
#include "MagickCore/pixel-accessor.h"
#include "MagickCore/pixel-private.h"
#include "MagickCore/resource_.h"
#include "MagickCore/string-private.h"
#include "MagickCore/thread-private.h"
#include "MagickCore/token.h"
#include "MagickCore/utility.h"
#include "MagickCore/version.h"

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%     C h a n n e l F x I m a g e                                             %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  ChannelFxImage() applies a channel expression to the specified image.  The
%  expression consists of one or more channels, either mnemonic or numeric (e.g.
%  red, 1), separated by actions as follows:
%
%    <=>     exchange two channels (e.g. red<=>blue)
%    =>      copy one channel to another channel (e.g. red=>green)
%    =       assign a constant value to a channel (e.g. red=50%)
%    ,       write new image channels in the specified order (e.g. red, green)
%    |       add a new output image for the next set of channel operations
%    ;       move to the next input image for the source of channel data
%
%  For example, to create 3 grayscale images from the red, green, and blue
%  channels of an image, use:
%
%    -channel-fx "red; green; blue"
%
%  A channel without an operation symbol implies separate (i.e, semicolon).
%
%  The format of the ChannelFxImage method is:
%
%      Image *ChannelFxImage(const Image *image,const char *expression,
%        ExceptionInfo *exception)
%
%  A description of each parameter follows:
%
%    o image: the image.
%
%    o expression: A channel expression.
%
%    o exception: return any errors or warnings in this structure.
%
*/

typedef enum
{
  ExtractChannelOp,
  AssignChannelOp,
  ExchangeChannelOp,
  TransferChannelOp
} ChannelFx;

static MagickBooleanType ChannelImage(Image *destination_image,
  const PixelChannel destination_channel,const ChannelFx channel_op,
  const Image *source_image,const PixelChannel source_channel,
  const Quantum pixel,ExceptionInfo *exception)
{
  CacheView
    *source_view,
    *destination_view;

MagickBooleanType
    status;

size_t
    height,
    width;

ssize_t
    y;

status=MagickTrue;
  source_view=AcquireVirtualCacheView(source_image,exception);
  destination_view=AcquireAuthenticCacheView(destination_image,exception);
  height=MagickMin(source_image->rows,destination_image->rows);
  width=MagickMin(source_image->columns,destination_image->columns);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
  #pragma omp parallel for schedule(static) shared(status) \
    magick_number_threads(source_image,source_image,height,1)
#endif
  for (y=0; y < (ssize_t) height; y++)
  {
    PixelTrait
      destination_traits,
      source_traits;

if (status == MagickFalse)
      continue;
    p=GetCacheViewVirtualPixels(source_view,0,y,source_image->columns,1,
      exception);
    q=GetCacheViewAuthenticPixels(destination_view,0,y,
      destination_image->columns,1,exception);
    if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
      {
        status=MagickFalse;
        continue;
      }
    destination_traits=GetPixelChannelTraits(destination_image,
      destination_channel);
    source_traits=GetPixelChannelTraits(source_image,source_channel);
    if ((destination_traits == UndefinedPixelTrait) ||
        (source_traits == UndefinedPixelTrait))
      continue;
    for (x=0; x < (ssize_t) width; x++)
    {
      if (channel_op == AssignChannelOp)
        SetPixelChannel(destination_image,destination_channel,pixel,q);
      else
        SetPixelChannel(destination_image,destination_channel,
          GetPixelChannel(source_image,source_channel,p),q);
      p+=GetPixelChannels(source_image);
      q+=GetPixelChannels(destination_image);
    }
    if (SyncCacheViewAuthenticPixels(destination_view,exception) == MagickFalse)
      status=MagickFalse;
  }
  destination_view=DestroyCacheView(destination_view);
  source_view=DestroyCacheView(source_view);
  return(status);
}

MagickExport Image *ChannelFxImage(const Image *image,const char *expression,
  ExceptionInfo *exception)
{
#define ChannelFxImageTag  "ChannelFx/Image"

ChannelFx
    channel_op;

ChannelType
    channel_mask;

char
    token[MagickPathExtent];

const char
    *p;

const Image
    *source_image;

double
    pixel;

Image
    *destination_image;

MagickBooleanType
    status;

PixelChannel
    source_channel,
    destination_channel;

ssize_t
    channels;

assert(image != (Image *) NULL);
  assert(image->signature == MagickCoreSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
  assert(exception != (ExceptionInfo *) NULL);
  assert(exception->signature == MagickCoreSignature);
  source_image=image;
  destination_image=CloneImage(source_image,0,0,MagickTrue,exception);
  if (destination_image == (Image *) NULL)
    return((Image *) NULL);
  if (expression == (const char *) NULL)
    return(destination_image);
  status=SetImageStorageClass(destination_image,DirectClass,exception);
  if (status == MagickFalse)
    {
      destination_image=GetLastImageInList(destination_image);
      return((Image *) NULL);
    }
  destination_channel=RedPixelChannel;
  channel_mask=UndefinedChannel;
  pixel=0.0;
  p=(char *) expression;
  (void) GetNextToken(p,&p,MagickPathExtent,token);
  channel_op=ExtractChannelOp;
  for (channels=0; *token != '\0'; )
  {
    ssize_t
      i;

/*
      Interpret channel expression.
    */
    switch (*token)
    {
      case ',':
      {
        (void) GetNextToken(p,&p,MagickPathExtent,token);
        break;
      }
      case '|':
      {
        if (GetNextImageInList(source_image) != (Image *) NULL)
          source_image=GetNextImageInList(source_image);
        else
          source_image=GetFirstImageInList(source_image);
        (void) GetNextToken(p,&p,MagickPathExtent,token);
        break;
      }
      case ';':
      {
        Image
          *canvas;

(void) SetPixelChannelMask(destination_image,channel_mask);
        if ((channel_op == ExtractChannelOp) && (channels == 1))
          {
            (void) SetPixelMetaChannels(destination_image,0,exception);
            (void) SetImageColorspace(destination_image,GRAYColorspace,
              exception);
          }
        canvas=CloneImage(source_image,0,0,MagickTrue,exception);
        if (canvas == (Image *) NULL)
          {
            destination_image=DestroyImageList(destination_image);
            return(destination_image);
          }
        AppendImageToList(&destination_image,canvas);
        destination_image=GetLastImageInList(destination_image);
        status=SetImageStorageClass(destination_image,DirectClass,exception);
        if (status == MagickFalse)
          {
            destination_image=GetLastImageInList(destination_image);
            return((Image *) NULL);
          }
        (void) GetNextToken(p,&p,MagickPathExtent,token);
        channels=0;
        destination_channel=RedPixelChannel;
        channel_mask=UndefinedChannel;
        break;
      }
      default:
        break;
    }
    i=ParsePixelChannelOption(token);
    if (i < 0)
      {
        (void) ThrowMagickException(exception,GetMagickModule(),OptionError,
          "UnrecognizedChannelType","`%s'",token);
        destination_image=DestroyImageList(destination_image);
        return(destination_image);
      }
    source_channel=(PixelChannel) i;
    channel_op=ExtractChannelOp;
    (void) GetNextToken(p,&p,MagickPathExtent,token);
    if (*token == '<')
      {
        channel_op=ExchangeChannelOp;
        (void) GetNextToken(p,&p,MagickPathExtent,token);
      }
    if (*token == '=')
      {
        if (channel_op != ExchangeChannelOp)
          channel_op=AssignChannelOp;
        (void) GetNextToken(p,&p,MagickPathExtent,token);
      }
    if (*token == '>')
      {
        if (channel_op != ExchangeChannelOp)
          channel_op=TransferChannelOp;
        (void) GetNextToken(p,&p,MagickPathExtent,token);
      }
    switch (channel_op)
    {
      case AssignChannelOp:
      case ExchangeChannelOp:
      case TransferChannelOp:
      {
        if (channel_op == AssignChannelOp)
          pixel=StringToDoubleInterval(token,(double) QuantumRange+1.0);
        else
          {
            i=ParsePixelChannelOption(token);
            if (i < 0)
              {
                (void) ThrowMagickException(exception,GetMagickModule(),
                  OptionError,"UnrecognizedChannelType","`%s'",token);
                destination_image=DestroyImageList(destination_image);
                return(destination_image);
              }
          }
        destination_channel=(PixelChannel) i;
        if (i >= (ssize_t) GetPixelChannels(destination_image))
          (void) SetPixelMetaChannels(destination_image,(size_t) (
            destination_channel-GetPixelChannels(destination_image)+1),
            exception);
        if (image->colorspace != UndefinedColorspace)
          switch (destination_channel)
          {
            case RedPixelChannel:
            case GreenPixelChannel:
            case BluePixelChannel:
            case BlackPixelChannel:
            case IndexPixelChannel:
              break;
            case AlphaPixelChannel:
            {
              destination_image->alpha_trait=BlendPixelTrait;
              break;
            }
            case CompositeMaskPixelChannel:
            {
              destination_image->channels=(ChannelType)
                (destination_image->channels | CompositeMaskChannel);
              break;
            }
            case ReadMaskPixelChannel:
            {
              destination_image->channels=(ChannelType)
                (destination_image->channels | ReadMaskChannel);
              break;
            }
            case WriteMaskPixelChannel:
            {
              destination_image->channels=(ChannelType)
                (destination_image->channels | WriteMaskChannel);
              break;
            }
            case MetaPixelChannel:
            default:
            {
              (void) SetPixelMetaChannels(destination_image,(size_t) (
                destination_channel-GetPixelChannels(destination_image)+1),
                exception);
              break;
            }
          }
        channel_mask=(ChannelType) (channel_mask | ParseChannelOption(token));
        if (((channels >= 1)  || (destination_channel >= 1)) &&
            (IsGrayColorspace(destination_image->colorspace) != MagickFalse))
          (void) SetImageColorspace(destination_image,sRGBColorspace,exception);
        (void) GetNextToken(p,&p,MagickPathExtent,token);
        break;
      }
      default:
        break;
    }
    status=ChannelImage(destination_image,destination_channel,channel_op,
      source_image,source_channel,ClampToQuantum(pixel),exception);
    if (status == MagickFalse)
      {
        destination_image=DestroyImageList(destination_image);
        break;
      }
    channels++;
    if (channel_op == ExchangeChannelOp)
      {
        status=ChannelImage(destination_image,source_channel,channel_op,
          source_image,destination_channel,ClampToQuantum(pixel),exception);
        if (status == MagickFalse)
          {
            destination_image=DestroyImageList(destination_image);
            break;
          }
        channels++;
      }
    switch (channel_op)
    {
      case ExtractChannelOp:
      {
        channel_mask=(ChannelType) (channel_mask |
          (1UL << destination_channel));
        destination_channel=(PixelChannel) (destination_channel+1);
        break;
      }
      default:
        break;
    }
    status=SetImageProgress(source_image,ChannelFxImageTag,p-expression,
      strlen(expression));
    if (status == MagickFalse)
      break;
  }
  (void) SetPixelChannelMask(destination_image,channel_mask);
  if ((channel_op == ExtractChannelOp) && (channels == 1))
    {
      (void) SetPixelMetaChannels(destination_image,0,exception);
      (void) SetImageColorspace(destination_image,GRAYColorspace,exception);
    }
  return(GetFirstImageInList(destination_image));
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%     C o m b i n e I m a g e s                                               %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  CombineImages() combines one or more images into a single image.  The
%  grayscale value of the pixels of each image in the sequence is assigned in
%  order to the specified channels of the combined image.   The typical
%  ordering would be image 1 => Red, 2 => Green, 3 => Blue, etc.
%
%  The format of the CombineImages method is:
%
%      Image *CombineImages(const Image *images,const ColorspaceType colorspace,
%        ExceptionInfo *exception)
%
%  A description of each parameter follows:
%
%    o images: the image sequence.
%
%    o colorspace: the image colorspace.
%
%    o exception: return any errors or warnings in this structure.
%
*/
MagickExport Image *CombineImages(const Image *image,
  const ColorspaceType colorspace,ExceptionInfo *exception)
{
#define CombineImageTag  "Combine/Image"

CacheView
    *combine_view;

Image
    *combine_image;

MagickBooleanType
    status;

MagickOffsetType
    progress;

ssize_t
    y;

/*
    Ensure the image are the same size.
  */
  assert(image != (const Image *) NULL);
  assert(image->signature == MagickCoreSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
  assert(exception != (ExceptionInfo *) NULL);
  assert(exception->signature == MagickCoreSignature);
  combine_image=CloneImage(image,0,0,MagickTrue,exception);
  if (combine_image == (Image *) NULL)
    return((Image *) NULL);
  if (SetImageStorageClass(combine_image,DirectClass,exception) == MagickFalse)
    {
      combine_image=DestroyImage(combine_image);
      return((Image *) NULL);
    }
  if (colorspace != UndefinedColorspace)
    (void) SetImageColorspace(combine_image,colorspace,exception);
  else
    if (fabs(image->gamma-1.0) <= MagickEpsilon)
      (void) SetImageColorspace(combine_image,RGBColorspace,exception);
    else
      (void) SetImageColorspace(combine_image,sRGBColorspace,exception);
  switch (combine_image->colorspace)
  {
    case UndefinedColorspace:
    case sRGBColorspace:
    {
      if (GetImageListLength(image) > 3)
        combine_image->alpha_trait=BlendPixelTrait;
      break;
    }
    case LinearGRAYColorspace:
    case GRAYColorspace:
    {
      if (GetImageListLength(image) > 1)
        combine_image->alpha_trait=BlendPixelTrait;
      break;
    }
    case CMYKColorspace:
    {
      if (GetImageListLength(image) > 4)
        combine_image->alpha_trait=BlendPixelTrait;
      break;
    }
    default:
      break;
  }
  /*
    Combine images.
  */
  status=MagickTrue;
  progress=0;
  combine_view=AcquireAuthenticCacheView(combine_image,exception);
  for (y=0; y < (ssize_t) combine_image->rows; y++)
  {
    CacheView
      *image_view;

const Image
      *next;

Quantum
      *pixels;

if (status == MagickFalse)
      continue;
    pixels=GetCacheViewAuthenticPixels(combine_view,0,y,combine_image->columns,
      1,exception);
    if (pixels == (Quantum *) NULL)
      {
        status=MagickFalse;
        continue;
      }
    next=image;
    for (i=0; i < (ssize_t) GetPixelChannels(combine_image); i++)
    {
      register ssize_t
        x;

PixelChannel channel = GetPixelChannelChannel(combine_image,i);
      PixelTrait traits = GetPixelChannelTraits(combine_image,channel);
      if (traits == UndefinedPixelTrait)
        continue;
      if (next == (Image *) NULL)
        continue;
      image_view=AcquireVirtualCacheView(next,exception);
      p=GetCacheViewVirtualPixels(image_view,0,y,next->columns,1,exception);
      if (p == (const Quantum *) NULL)
        continue;
      q=pixels;
      for (x=0; x < (ssize_t) combine_image->columns; x++)
      {
        if (x < (ssize_t) next->columns)
          {
            q[i]=GetPixelIntensity(next,p);
            p+=GetPixelChannels(next);
          }
        q+=GetPixelChannels(combine_image);
      }
      image_view=DestroyCacheView(image_view);
      next=GetNextImageInList(next);
    }
    if (SyncCacheViewAuthenticPixels(combine_view,exception) == MagickFalse)
      status=MagickFalse;
    if (image->progress_monitor != (MagickProgressMonitor) NULL)
      {
        MagickBooleanType
          proceed;

#if defined(MAGICKCORE_OPENMP_SUPPORT)
        #pragma omp atomic
#endif
        progress++;
        proceed=SetImageProgress(image,CombineImageTag,progress,
          combine_image->rows);
        if (proceed == MagickFalse)
          status=MagickFalse;
      }
  }
  combine_view=DestroyCacheView(combine_view);
  if (status == MagickFalse)
    combine_image=DestroyImage(combine_image);
  return(combine_image);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   G e t I m a g e A l p h a C h a n n e l                                   %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  GetImageAlphaChannel() returns MagickFalse if the image alpha channel is
%  not activated.  That is, the image is RGB rather than RGBA or CMYK rather
%  than CMYKA.
%
%  The format of the GetImageAlphaChannel method is:
%
%      MagickBooleanType GetImageAlphaChannel(const Image *image)
%
%  A description of each parameter follows:
%
%    o image: the image.
%
*/
MagickExport MagickBooleanType GetImageAlphaChannel(const Image *image)
{
  assert(image != (const Image *) NULL);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
  assert(image->signature == MagickCoreSignature);
  return(image->alpha_trait != UndefinedPixelTrait ? MagickTrue : MagickFalse);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%     S e p a r a t e I m a g e                                               %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  SeparateImage() separates a channel from the image and returns it as a
%  grayscale image.
%
%  The format of the SeparateImage method is:
%
%      Image *SeparateImage(const Image *image,const ChannelType channel,
%        ExceptionInfo *exception)
%
%  A description of each parameter follows:
%
%    o image: the image.
%
%    o channel: the image channel.
%
%    o exception: return any errors or warnings in this structure.
%
*/
MagickExport Image *SeparateImage(const Image *image,
  const ChannelType channel_type,ExceptionInfo *exception)
{
#define GetChannelBit(mask,bit)  (((size_t) (mask) >> (size_t) (bit)) & 0x01)
#define SeparateImageTag  "Separate/Image"

CacheView
    *image_view,
    *separate_view;

Image
    *separate_image;

MagickBooleanType
    status;

MagickOffsetType
    progress;

ssize_t
    y;

/*
    Initialize separate image attributes.
  */
  assert(image != (Image *) NULL);
  assert(image->signature == MagickCoreSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
  assert(exception != (ExceptionInfo *) NULL);
  assert(exception->signature == MagickCoreSignature);
  separate_image=CloneImage(image,0,0,MagickTrue,exception);
  if (separate_image == (Image *) NULL)
    return((Image *) NULL);
  if (SetImageStorageClass(separate_image,DirectClass,exception) == MagickFalse)
    {
      separate_image=DestroyImage(separate_image);
      return((Image *) NULL);
    }
  separate_image->alpha_trait=UndefinedPixelTrait;
  (void) SetImageColorspace(separate_image,GRAYColorspace,exception);
  separate_image->gamma=image->gamma;
  /*
    Separate image.
  */
  status=MagickTrue;
  progress=0;
  image_view=AcquireVirtualCacheView(image,exception);
  separate_view=AcquireAuthenticCacheView(separate_image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
  #pragma omp parallel for schedule(static) shared(progress,status) \
    magick_number_threads(image,image,image->rows,1)
#endif
  for (y=0; y < (ssize_t) image->rows; y++)
  {
    register const Quantum
      *magick_restrict p;

if (status == MagickFalse)
      continue;
    p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
    q=QueueCacheViewAuthenticPixels(separate_view,0,y,separate_image->columns,1,
      exception);
    if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
      {
        status=MagickFalse;
        continue;
      }
    for (x=0; x < (ssize_t) image->columns; x++)
    {
      register ssize_t
        i;

SetPixelChannel(separate_image,GrayPixelChannel,(Quantum) 0,q);
      for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
      {
        PixelChannel channel = GetPixelChannelChannel(image,i);
        PixelTrait traits = GetPixelChannelTraits(image,channel);
        if ((traits == UndefinedPixelTrait) ||
            (GetChannelBit(channel_type,channel) == 0))
          continue;
        SetPixelChannel(separate_image,GrayPixelChannel,p[i],q);
      }
      p+=GetPixelChannels(image);
      q+=GetPixelChannels(separate_image);
    }
    if (SyncCacheViewAuthenticPixels(separate_view,exception) == MagickFalse)
      status=MagickFalse;
    if (image->progress_monitor != (MagickProgressMonitor) NULL)
      {
        MagickBooleanType
          proceed;

#if defined(MAGICKCORE_OPENMP_SUPPORT)
        #pragma omp atomic
#endif
        progress++;
        proceed=SetImageProgress(image,SeparateImageTag,progress,image->rows);
        if (proceed == MagickFalse)
          status=MagickFalse;
      }
  }
  separate_view=DestroyCacheView(separate_view);
  image_view=DestroyCacheView(image_view);
  (void) SetImageChannelMask(separate_image,DefaultChannels);
  if (status == MagickFalse)
    separate_image=DestroyImage(separate_image);
  return(separate_image);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%     S e p a r a t e I m a g e s                                             %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  SeparateImages() returns a separate grayscale image for each channel
%  specified.
%
%  The format of the SeparateImages method is:
%
%      Image *SeparateImages(const Image *image,ExceptionInfo *exception)
%
%  A description of each parameter follows:
%
%    o image: the image.
%
%    o exception: return any errors or warnings in this structure.
%
*/
MagickExport Image *SeparateImages(const Image *image,ExceptionInfo *exception)
{
  Image
    *images,
    *separate_image;

assert(image != (Image *) NULL);
  assert(image->signature == MagickCoreSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
  images=NewImageList();
  for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
  {
    PixelChannel channel = GetPixelChannelChannel(image,i);
    PixelTrait traits = GetPixelChannelTraits(image,channel);
    if ((traits == UndefinedPixelTrait) || ((traits & UpdatePixelTrait) == 0))
      continue;
    separate_image=SeparateImage(image,(ChannelType) (1UL << channel),
      exception);
    if (separate_image != (Image *) NULL)
      AppendImageToList(&images,separate_image);
  }
  if (images == (Image *) NULL)
    images=SeparateImage(image,UndefinedChannel,exception);
  return(images);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   S e t I m a g e A l p h a C h a n n e l                                   %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  SetImageAlphaChannel() activates, deactivates, resets, or sets the alpha
%  channel.
%
%  The format of the SetImageAlphaChannel method is:
%
%      MagickBooleanType SetImageAlphaChannel(Image *image,
%        const AlphaChannelOption alpha_type,ExceptionInfo *exception)
%
%  A description of each parameter follows:
%
%    o image: the image.
%
%    o alpha_type:  The alpha channel type: ActivateAlphaChannel,
%      AssociateAlphaChannel, CopyAlphaChannel, DeactivateAlphaChannel,
%      DisassociateAlphaChannel,  ExtractAlphaChannel, OffAlphaChannel,
%      OnAlphaChannel, OpaqueAlphaChannel, SetAlphaChannel, ShapeAlphaChannel,
%      and TransparentAlphaChannel.
%
%    o exception: return any errors or warnings in this structure.
%
*/

static inline void FlattenPixelInfo(const Image *image,const PixelInfo *p,
  const double alpha,const Quantum *q,const double beta,
  Quantum *composite)
{
  double
    Da,
    gamma,
    Sa;

/*
    Compose pixel p over pixel q with the given alpha.
  */
  Sa=QuantumScale*alpha;
  Da=QuantumScale*beta,
  gamma=Sa*(-Da)+Sa+Da;
  gamma=PerceptibleReciprocal(gamma);
  for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
  {
    PixelChannel channel = GetPixelChannelChannel(image,i);
    PixelTrait traits = GetPixelChannelTraits(image,channel);
    if (traits == UndefinedPixelTrait)
      continue;
    switch (channel)
    {
      case RedPixelChannel:
      {
        composite[i]=ClampToQuantum(gamma*MagickOver_((double) q[i],beta,
          (double) p->red,alpha));
        break;
      }
      case GreenPixelChannel:
      {
        composite[i]=ClampToQuantum(gamma*MagickOver_((double) q[i],beta,
          (double) p->green,alpha));
        break;
      }
      case BluePixelChannel:
      {
        composite[i]=ClampToQuantum(gamma*MagickOver_((double) q[i],beta,
          (double) p->blue,alpha));
        break;
      }
      case BlackPixelChannel:
      {
        composite[i]=ClampToQuantum(gamma*MagickOver_((double) q[i],beta,
          (double) p->black,alpha));
        break;
      }
      case AlphaPixelChannel:
      {
        composite[i]=ClampToQuantum(QuantumRange*(Sa*(-Da)+Sa+Da));
        break;
      }
      default:
        break;
    }
  }
}

MagickExport MagickBooleanType SetImageAlphaChannel(Image *image,
  const AlphaChannelOption alpha_type,ExceptionInfo *exception)
{
  CacheView
    *image_view;

MagickBooleanType
    status;

ssize_t
    y;

assert(image != (Image *) NULL);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
  assert(image->signature == MagickCoreSignature);
  status=MagickTrue;
  switch (alpha_type)
  {
    case ActivateAlphaChannel:
    {
      image->alpha_trait=BlendPixelTrait;
      break;
    }
    case AssociateAlphaChannel:
    {
      /*
        Associate alpha.
      */
      status=SetImageStorageClass(image,DirectClass,exception);
      if (status == MagickFalse)
        break;
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static) shared(status) \
        magick_number_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        register Quantum
          *magick_restrict q;

gamma=QuantumScale*GetPixelAlpha(image,q);
          for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
          {
            PixelChannel channel = GetPixelChannelChannel(image,i);
            PixelTrait traits = GetPixelChannelTraits(image,channel);
            if (channel == AlphaPixelChannel)
              continue;
            if ((traits & UpdatePixelTrait) == 0)
              continue;
            q[i]=ClampToQuantum(gamma*q[i]);
          }
          q+=GetPixelChannels(image);
        }
        if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
          status=MagickFalse;
      }
      image_view=DestroyCacheView(image_view);
      image->alpha_trait=CopyPixelTrait;
      return(status);
    }
    case BackgroundAlphaChannel:
    {
      /*
        Set transparent pixels to background color.
      */
      if (image->alpha_trait == UndefinedPixelTrait)
        break;
      status=SetImageStorageClass(image,DirectClass,exception);
      if (status == MagickFalse)
        break;
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static) shared(status) \
        magick_number_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        register Quantum
          *magick_restrict q;

if (status == MagickFalse)
          continue;
        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
          exception);
        if (q == (Quantum *) NULL)
          {
            status=MagickFalse;
            continue;
          }
        for (x=0; x < (ssize_t) image->columns; x++)
        {
          if (GetPixelAlpha(image,q) == TransparentAlpha)
            {
              SetPixelViaPixelInfo(image,&image->background_color,q);
              SetPixelChannel(image,AlphaPixelChannel,TransparentAlpha,q);
            }
          q+=GetPixelChannels(image);
        }
        if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
          status=MagickFalse;
      }
      image_view=DestroyCacheView(image_view);
      return(status);
    }
    case CopyAlphaChannel:
    {
      image->alpha_trait=UpdatePixelTrait;
      status=CompositeImage(image,image,IntensityCompositeOp,MagickTrue,0,0,
        exception);
      break;
    }
    case DeactivateAlphaChannel:
    {
      if (image->alpha_trait == UndefinedPixelTrait)
        status=SetImageAlpha(image,OpaqueAlpha,exception);
      image->alpha_trait=CopyPixelTrait;
      break;
    }
    case DisassociateAlphaChannel:
    {
      /*
        Disassociate alpha.
      */
      status=SetImageStorageClass(image,DirectClass,exception);
      if (status == MagickFalse)
        break;
      image->alpha_trait=BlendPixelTrait;
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static) shared(status) \
        magick_number_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        register Quantum
          *magick_restrict q;

Sa=QuantumScale*GetPixelAlpha(image,q);
          gamma=PerceptibleReciprocal(Sa);
          for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
          {
            PixelChannel channel = GetPixelChannelChannel(image,i);
            PixelTrait traits = GetPixelChannelTraits(image,channel);
            if (channel == AlphaPixelChannel)
              continue;
            if ((traits & UpdatePixelTrait) == 0)
              continue;
            q[i]=ClampToQuantum(gamma*q[i]);
          }
          q+=GetPixelChannels(image);
        }
        if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
          status=MagickFalse;
      }
      image_view=DestroyCacheView(image_view);
      image->alpha_trait=UndefinedPixelTrait;
      return(status);
    }
    case DiscreteAlphaChannel:
    {
      if (image->alpha_trait == UndefinedPixelTrait)
        status=SetImageAlpha(image,OpaqueAlpha,exception);
      image->alpha_trait=UpdatePixelTrait;
      break;
    }
    case ExtractAlphaChannel:
    {
      status=CompositeImage(image,image,AlphaCompositeOp,MagickTrue,0,0,
        exception);
      image->alpha_trait=UndefinedPixelTrait;
      break;
    }
    case OffAlphaChannel:
    {
      image->alpha_trait=UndefinedPixelTrait;
      break;
    }
    case OnAlphaChannel:
    {
      if (image->alpha_trait == UndefinedPixelTrait)
        status=SetImageAlpha(image,OpaqueAlpha,exception);
      image->alpha_trait=BlendPixelTrait;
      break;
    }
    case OpaqueAlphaChannel:
    {
      status=SetImageAlpha(image,OpaqueAlpha,exception);
      break;
    }
    case RemoveAlphaChannel:
    {
      /*
        Remove transparency.
      */
      if (image->alpha_trait == UndefinedPixelTrait)
        break;
      status=SetImageStorageClass(image,DirectClass,exception);
      if (status == MagickFalse)
        break;
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static) shared(status) \
        magick_number_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        register Quantum
          *magick_restrict q;

if (status == MagickFalse)
          continue;
        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
          exception);
        if (q == (Quantum *) NULL)
          {
            status=MagickFalse;
            continue;
          }
        for (x=0; x < (ssize_t) image->columns; x++)
        {
          FlattenPixelInfo(image,&image->background_color,
            image->background_color.alpha,q,(double) GetPixelAlpha(image,q),q);
          q+=GetPixelChannels(image);
        }
        if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
          status=MagickFalse;
      }
      image_view=DestroyCacheView(image_view);
      image->alpha_trait=image->background_color.alpha_trait;
      break;
    }
    case SetAlphaChannel:
    {
      if (image->alpha_trait == UndefinedPixelTrait)
        status=SetImageAlpha(image,OpaqueAlpha,exception);
      break;
    }
    case ShapeAlphaChannel:
    {
      PixelInfo
        background;

/*
        Remove transparency.
      */
      ConformPixelInfo(image,&image->background_color,&background,exception);
      background.alpha_trait=BlendPixelTrait;
      image->alpha_trait=BlendPixelTrait;
      status=SetImageStorageClass(image,DirectClass,exception);
      if (status == MagickFalse)
        break;
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static) shared(status) \
        magick_number_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        PixelInfo
          pixel;

if (status == MagickFalse)
          continue;
        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
          exception);
        if (q == (Quantum *) NULL)
          {
            status=MagickFalse;
            continue;
          }
        pixel=background;
        for (x=0; x < (ssize_t) image->columns; x++)
        {
          pixel.alpha=GetPixelIntensity(image,q);
          SetPixelViaPixelInfo(image,&pixel,q);
          q+=GetPixelChannels(image);
        }
        if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
          status=MagickFalse;
      }
      image_view=DestroyCacheView(image_view);
      break;
    }
    case TransparentAlphaChannel:
    {
      status=SetImageAlpha(image,TransparentAlpha,exception);
      break;
    }
    case UndefinedAlphaChannel:
      break;
  }
  if (status == MagickFalse)
    return(status);
  (void) SetPixelChannelMask(image,image->channel_mask);
  return(SyncImagePixelCache(image,exception));
}

${this.title}

Code Editor : channel.c