Format | RAS | PPM |
Company | Sun | Pixmap file format |
Description | Sun Rasterfiles are a bitmap storage format developed by Sun Microsystems. | Netpbm format is a family including the portable pixmap file format (PPM), the portable graymap file format (PGM) and the portable bitmap file format (PBM). These are ASCII files that provide very basic functionality and serve as a least-common-denominator for converting pixmap, graymap, or bitmap files between different platforms. Several applications refer to them collectively as the PNM format (portable anymap). |
Benefits | The bitmap may either by not compressed or compressed using a Run-length Compression scheme (lossless). | Popular |
Drawbacks | The format is well supported on Sun workstations, but is less widely supported elsewhere. | Uncompressed large files |
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