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set compression level of the output file

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nagadomi 2015-07-24 17:16:27 +09:00
parent 751fdc4b52
commit e5a2ef97c7
1 changed files with 2 additions and 2 deletions
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4
lib/image_loader.lua
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@ -26,11 +26,11 @@ function image_loader.encode_png(rgb, alpha)
rgba[4]:copy(alpha)
local im = gm.Image():fromTensor(rgba, "RGBA", "DHW")
im:format("png")
return im:toBlob()
return im:toBlob(92) -- I don't know why is 92 best compression ratio.
else
local im = gm.Image(rgb, "RGB", "DHW")
im:format("png")
return im:toBlob()
return im:toBlob(92)
end
end
function image_loader.save_png(filename, rgb, alpha)