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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
SIX
JPEG 2000
JPEG 2000 (JP2) is an image compression standard and coding system. It was created by the Joint Photographic Experts Group committee in 2000 with the intention of superseding their original discrete cosine transform-based JPEG standard (created in 1992) with a newly designed, wavelet-based method.
Main usage
JPEG 2000 is commonly used for digital image archiving and for the transmission and storage of medical images, such as X-rays and ultrasounds.
- Lossless and lossy compression
- High compression ratios
- High image quality
- Support for transparency and alpha channels
- Support for multiple resolutions