PackPNM
From Just Solve the File Format Problem
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== Software == | == Software == | ||
− | [[Konvertor]] | + | * [http://packjpg.encode.ru/?page_id=73 packPNM] |
+ | * [[Konvertor]] | ||
== Links == | == Links == |
Revision as of 15:46, 18 October 2017
packPNM is a utility and format for losslessly compressing many PNM, BMP, and Radiance HDR image files. Like its counterpart packJPG, it can be thought of as a graphics format, or as a special-purpose compression format.Identification
Apparently, the header of the file is left unchanged, except that the first byte is changed to 0x53 (ASCII "S"). So, a packPNM-compressed binary PPM file begins with "S6" instead of "P6". A compressed BMP file begins with "SM" instead of "BM".