Legacy ImageMagick Discussions Archive

I'm trying to write an 8-bit Windows icon whose pixels are fully transparent if the corresponding pixel in the 32-bit RGBA source image is fully transparent. I realize that transparency in 8-bit Windows icons is not handled by defining one of the 256 colors to be treated as transparent (like e.g ...

This seems to be fixed in IM 6.8.4. Thanks!

While the incorrect reports of the rendering_intent and chunks seem to be fixed in IM 6.8.4, the reported depth for the PNG icon still is 8-bit instead of 32-bit. Even if "identify" reports the sample depth, shouldn't it report the pixel depth instead anyway?

Thanks for double-checking. I'm currently looking into using NConvert instead, and first tests seem to be promising.

eyebex wrote:Will experiment with "-depth" and report back here later.

It seems "-depth 8" has not effect when writing ICO files, they still are 32-bit

convert -colorspace sRGB -density 256x256 Git-Icon-1788C.eps -resize 256x256 git.gif convert git.gif -type palettematte git.ico Thanks, that works, but I realized it in fact already worked before without "-type palettematte". It was my image viewer that was buggy and is not able to display boolean ...

At http://www.imagemagick.org/script/formats.php the ICON format is marked as read-only, thus I think that the writing support is very limited. I have tried to write icons with indexed colours with ImageMagick on my Windows computer, but failed too. That's interesting because there's actually a ...

Hi, I'm using version 6.7.7-2 2012-06-15 Q16 on a Mac and am struggling to rasterize this vectors graphic to a 256x256 icon file with a color palette of 255 colors and 1 color reserved for boolean transparency. So far I'm using convert -colorspace sRGB -density 256x256 Git-Icon-1788C.eps -resize ...

Hi, as you know Windows since Vista supports icons to be PNG compressed. While IM is able to identify such icons, is does not seem to be able to create them. At least I was not able to get "-compress Zip" to work with icons. For testing, use http://git-scm.com/images/logos/downloads/Git-Icon-1788C ...

Hi, if I run $ identify.exe git.ico git.ico[0] ICO 16x16 16x16+0+0 32-bit DirectClass 48.3KB 0.016u 0:00.015 git.ico[1] ICO 24x24 24x24+0+0 32-bit DirectClass 48.3KB 0.016u 0:00.015 git.ico[2] ICO 32x32 32x32+0+0 32-bit DirectClass 48.3KB 0.016u 0:00.015 git.ico[3] ICO 48x48 48x48+0+0 32-bit ...