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OptimizeFree PGM to RLE Converter
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PGM
Portable Gray Map
Portable Gray Map (PGM) is a file format for grayscale images. It is a lowest common denominator grayscale file format that most image processing programs can read and write.
Main usage
PGM is used for storing images such as X-ray images, medical images, and other scientific images.
- 8-bit grayscale
- 1-bit black and white
- 24-bit RGB color
Main features
RLE
Run Length Encoding
Run Length Encoding (RLE) is a lossless data compression algorithm for image files. It is used to reduce the size of the image file without losing any of the image data.
Main usage
Run Length Encoding is commonly used for compressing images in web applications, video games, and other applications where image size is a concern.
- Lossless compression
- High compression ratio
- Simple algorithm