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OptimizeFree PGM to JPE 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
JPE
Joint Photographic Experts Group
JPEG is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography.
Main usage
JPEG is most commonly used for digital photography, web graphics, and for storing photographs and other images with millions of colors.
- Lossy compression
- High compression ratio
- Widely supported