[luv-main] Imagemagick - convert to same format as another image

Hi all, I have an little microcontroller and LCD that can display windows bmp files, but it only seems to work with the ones provided. When I create a bmp file with the same basic resolution, colour depth etc, it fails to display. Does anyone know of a way to convert an image to bmp format having the same characteristics as a reference image? I'm sure I could work it out for this specific case, but it would be handy thing to be able to do in general. anyone? cory