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A legacy format with RAW structure for storing photos taken with Canon cameras. It contains graphical information about data that was obtained through the lens without the use of hardware or software correction and compression. It contains metadata that identify shooting conditions and camera settings.

This is an image file format that is stored without the use of compression algorithms. It is used in the JPEG 2000 standard. This format is capable of storing only one single component, so it is limited to displaying grayscale tones. If you combine multiple PGX files, then you can make a color image.