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JXL to PPM
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JXL stands for JPEG XL, a next-generation image coding standard developed by the Joint Photographic Experts Group (JPEG). JPEG XL is designed to provide efficient compression for both lossless and lossy image storage, offering high image quality at lower file sizes compared to previous standards. It supports a wide range of features including high dynamic range, wide color gamut, and progressive decoding, making it suitable for use in various applications from web graphics to professional photography. Despite its advantages, as a newer standard, JPEG XL may not yet have widespread support across all platforms and software.

PPM stands for Portable Pixmap, and it is a simple image format that is part of the Netpbm package. The PPM format stores color images in a plain text or binary format, representing pixel values with three numbers for red, green, and blue color channels. PPM files are easy to read and understand, but they can be large in size as they do not employ any form of compression, resulting in each pixel being represented by full color intensity values.