I notice that the Gimp can read and work with PGM files in raw and plain formats so long as the grayscale formats are in the 0-255 range. However, the PGM documentation specifies a variant of the raw format in which the values may go up to 65535. I have some images like that, and the Gimp complains about an invalid "maxval". Other tools like eog(1) and Irfanview(Windows) read the images just fine. I have attached one, which may be small enough to make it through (ungzipped it's just over 37K).
Is this omission intentional? -- Kevin O'Gorman, PhD
bigraw.pgm.gz
Description: GNU Zip compressed data
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