Legacy ImageMagick Discussions Archive

Thanks very much,the two methods both works.

fmw42 wrote:try putting the input image first and use BMP3: format

convert bild.bmp -resize 50% -depth 4 BMP3:test.bmp

see http://www.imagemagick.org/Usage/formats/#bmp for depth restrictions

Thanks,I tried,but it does'nt work.

I use this version:ImageMagick-6.6.0 convert -resize 50% bild.bmp test.bmp the depth of the origin image is 4 bits,after convert the resulting image's depth is changed to 24,why? I tried this: convert -resize 50% -depth 4 bild.bmp test.bmp but it does'nt work. And I did some code: while ...