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How to convert a 32 bit(A8R8G8B8) image(.bmp uncompressed /or .png) with alpha channel into .bmp RLE compressed with alpha channel using Gimp or ImageMagic or any other open source tool?
Thanks, Sridhar
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How to convert a 32 bit(A8R8G8B8) image(.bmp uncompressed /or .png) with alpha channel into .bmp RLE compressed with alpha channel using Gimp or ImageMagic or any other open source tool?
Thanks, Sridhar
RLE only works with 256 colors (from what I've read). I tried ImageMagick's
convert
and it lead to the same result, no matter what compression I use (none or RLE). Both files are exactly the same size. (BMP -> "compressed" BMP). Stick with PNG whenever possible, it yields smaller files. – GiantTree – 2015-07-17T20:37:39.8801@Steven: Tried both Gimp and ImageMagic. I could convert 32 bit .png into 32bit .bpm (without losing alpha channel). But I couldn't apply any compression if the image has alpha channel. – SridharKritha – 2015-07-19T16:15:41.973
In Gimp there is an option for to change the image into indexed mode. After that mode change you could apply RLE but you will lose the alpha channel. – SridharKritha – 2015-07-19T16:22:23.280