Posted: 2006-12-18T07:52:53-07:00
Can you post a URL to your image? We need to download it and reproduce the problem before we can offer a solution.
The TIFF reader was using the more expensive generic method to read your image instead of the memory efficient tilled method. We patched ImageMagick 6.2.3-3 Beta to fix this problem. The patch will be available by tommorrow. A release version will be available in the next week or two. Be sure to add -limit memory 32 -limit map 32 to your command line to force the image pixels to disk rather than memory.
You can combine separate image planes into a single CMYK image with ImageMagick. You can also crop or resize the image.