Legacy ImageMagick Discussions Archive

I was wrong, bmp does not support grey scale (all 3 channels are needed) and -type should be pallette (but IM fixes that it seems). Sorry for stiring things up. However, the following work to get the greyscale 8-bit (match output from other programs): convert in.jpg -colorspace GRAY -colors 256 out ...

How are you checking the colorspace? identify -format "%[colorspace] <== %f\n" out_gray.bmp Also, the software that requires grey scale 8-bit bmp gives an error msg saying the format is not correct. What was your exact command? I have tried many ways (see my first post) but this is what I ...

Thanks for the input. I tested IM7 (beta) but got the same result. Can it be that Im missing some libraries?

Hi Im trying to convert a jpg file to grey scale 8-bit bmp (another program requires this specification). However, no matter what I do, colorspace remains sRGB. I tried to convert the jpg to grey scale jpg and then to bmp but that didnt help. Separating out one color (e.g. -channel B -separate) did ...