devblog

CMYK images will not display in most web browsers (Safari is an exception). We added this fix to convert to RGB colour space wherever ImageMagick convert is called:

-colorspace RGB

For example:

convert -colorspace RGB -geometry 400x300 -quality 90 cmyk.jpg rgb.jpg

From http://www.cit.gu.edu.au/~anthony/graphics/imagick6/animations/#crop:

Notice that for a normal crop, the canvas of the animation remains the same size. This is often not what is wanted when cropping an animated image.

Because of this, in IM version 6.2.4-5, a special flag ‘!’ was created for adding to the “-crop” argument. This flag will cause crop to not only crop the individual image frames, but also adjust the page or canvas information about the image to that same area.

Just put [0] on the input filename to specify only the first frame:

convert "animation.gif[0]" file.jpg

Source:

http://studio.imagemagick.org/pipermail/magick-users/2002-June/003279.html