![]() It was a tedious process where any degree of human error would stretch out how long it took to deploy a build. We were a small team and without the benefit of a CI/CD pipeline or blue-green deployments, we could only release updates when users were less likely to be on our app late at night. And if any issues cropped up, you could roll back a release with the touch of a button.Īt that time, I had just finished a stint at a startup where the release process was far more manual and far more anxiety-inducing. I was working at a company that used GitHub Actions to cut its release times down to five minutes. $ convert foo.png -crop 640x480+50+100 out.pngįor i in *.png do convert "$i" -crop 1920x248+0+400 "$-cropped.The first time I saw a CI/CD pipeline in action was a real wake-up moment. To write the cropped image to a new file: If you want the crop rectangle to start at top corner X: 50 Y: 100 and the crop rectangle to be of size W: 640 H:480, then use the command: -layers OptimizeTransparency tells ImageMagick to replace portions of each frame that are identical to the corresponding parts of the preceding frame with transparency, saving on file size.Ĭonvert -fuzz 1% -delay 10 -loop 0 *.png -coalesce -layers OptimizeTransparency animation.gifĬonvert script_k.gif -coalesce -duplicate 1,-2-1 -quiet -layers OptimizePlus -loop 0 patrol_cycle.gifĬonvert -resize '1920x350!' -delay 5 -loop 0 *.png hv.gifĬonvert -fuzz 3% -resize '1920x350!' -delay 5 -loop 0 -coalesce -layers OptimizeTransparency *.png an.gifĬonvert -filter Triangle -define filter:support=2 -thumbnail 1920 -delay 5 -loop 0 -unsharp 0.25x0.08+8.3+0.045 -dither None -posterize 136 -quality 82 -define jpeg:fancy-upsampling=off -define png:compression-filter=5 -define png:compression-level=9 -define png:compression-strategy=1 -define png:exclude-chunk=all -interlace none -colorspace sRGB *.png output.gifĪnother version with less color informationĬonvert -filter Triangle -define filter:support=2 -thumbnail 1920 -delay 5 -loop 0 -unsharp 0.25x0.08+8.3+0.045 -dither None -posterize 136 -quality 82 -define jpeg:fancy-upsampling=off -define png:compression-filter=5 -define png:compression-level=9 -define png:compression-strategy=1 -define png:exclude-chunk=all -interlace none -colorspace sRGB -colors 32 -ordered-dither o8x8,8,8,8,4 +map *.png output.gif convert GIF into movie by extracting frames and recompilingĬonverting image sequence in QuickTime 7 worked more effectively than the above commandĬonvert -coalesce animation.gif target.png Cropping / Batch Crop.-delay 1x8 says that the animation should play a frame every 1/8 of a second.-fuzz tells ImageMagick to treat pixels whose color values differ by less than 1% as the same color, giving the OptimizeTransparency action more pixels to chop away. ![]() ![]() -f image2 selects the output format, a series of still images - make sure there are leading zeros in filename.Ĭonvert *.png -resize 70% newname%02d.png Convert mutliple filetype(s) into animated gifĬonvert -fuzz 1% -delay 1x8 *.png -coalesce -layers OptimizeTransparency animation.gif.-s 480x270 tells FFmpeg to resize the video output to 480 by 270 pixels.-t 5 says how much I want FFmpeg to decode, using the same duration syntax as for -ss. ![]() ![]()
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