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August 29, 2015 14:04
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Batch thumbnail creation with ImageMagik's mogrify and OptiPNG (non-recursive, needs thumbs directory)
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| :: | |
| :: Non-recursive ImageMagick mogrify thumbnail batch conversion, | |
| :: with OptiPNG compression afterwards. | |
| :: Based on http://superuser.com/a/604502 | |
| :: | |
| :: Caveats: 1. Will reduce colorspace if possible (Color -> Grays) | |
| :: 2. Will overwrite thumbnails in-place if they exist | |
| :: 3. Requires %1\thumbs to exist | |
| :: 4. Uses 30% of original size, change as you see fit | |
| :: | |
| @echo off | |
| echo. | |
| set mogrify_apppath="mogrify.exe" | |
| set OptiPNG_apppath="OptiPNG.exe" | |
| if [%1]==[] echo Usage: %0 "PNG Dir" && echo. && echo Error: Invalid parameters && goto :EOF | |
| if not exist %1 echo Usage: %0 "PNG Dir" && echo. && echo Error: Invalid directory "%~1" && goto :EOF | |
| %mogrify_apppath% -verbose -format png -path "%~1\thumbs" -thumbnail 30%% "%~1\*.png" | |
| %OptiPNG_apppath% "%~1\thumbs\*.png" -zc9 -zm9 -zs3 -f0-5 -strip "all" |
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