Legacy ImageMagick Discussions Archive

Use MagickSetImageMatte() and set it to MagickFalse. That will remove the alpha channel from your image and subsequently write a 24 bit BMP image.

The method is in recent versions of ImageMagick. In the mean-time try MagickSetImageType() with a type of TrueColorType.

Ok, set your output file name like this: bmp3:image.bmp. The bmp3 prefix tells ImageMagick not to save the alpha channel.