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OptimizeFree PGM to HRZ Converter
Convert PGM to HRZ for free and online, easily convert your image file without needing to download any software or pay any fees
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Maximum file size 200 MB
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
HRZ
Horizonal Run-Length Encoding
Horizonal Run-Length Encoding (HRZ) is a type of image compression algorithm used to reduce the size of digital images.
Main usage
HRZ is commonly used for storing and transmitting medical images, satellite images, and other large images.
- Lossless compression
- High compression ratio
- Fast encoding and decoding