I've run some tests using the -monitor command line switch.
- for 80MB TIF files, the progress stops at 85%
- for 200MB TIF files, the progress stops at 77%
I'm suspecting that I'm hitting some kind of limit, either a file size limit (perhaps due to FPX specification) or a resource limit
In terms of the file size limit, in the Architecture guide under Large Image Support, it states that some image formats have restrictions on image size. I don't know what that is for FPX files. I have taken a look at the FPX specification document at
http://graphcomp.com/info/specs/livepicture/fpx.pdf, but haven't found any mention of any limit.
In terms of a resource limit, I appear to be well within limits. For my 85 MB file with dimensions 6091x4653, the pixel cache is 225 MB (6091*4653*2*8). When I query the limits on my system, I get
@eris (~)$ identify -list resource
File Area Memory Map Disk
------------------------------------------------
192 63.75gb 47.8125gb 127.5gb 16eb
So, these are some of the questions that I'm considering next:
Are there any dimension limitations (height/width) for files being converted to FPX?
Are there any size limitations for files being converted to FPX?
What version of ImageMagick is best suited to generate FPX images from TIF files? Q8? Q16? Q32?
If anyone has any advice that would be greatly appreciated.