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faqs:ppm_endian [2010/03/08 09:51] (current)
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 +====== Why does the 16bit PPM/PGM images looks so noisy, if I use a different program ======
 +Because there is no standard about 16 bit binary PPM's / PGM's and some programs save and expect the data in big-endian byte 
 +order and some in little-endian byte order. If an image is read in with the wrong byte oder, it looks noisy.
 +By default SImg uses little-endian byte order. This behaviour can be changed by Setting the environment variable ''​SImg_PNMLE=0''​.
 +See also: [[common:​formats#​PNM family]]
 +If you search for a widely distributed,​ flexible and well standardized ≥16bit image format, consider the [[common:​formats#​FITS]] format.
faqs/ppm_endian.txt · Last modified: 2010/03/08 09:51 (external edit)
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