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In comparison, when storing images that contain text, line art, or graphics – images with sharp transitions and large areas of solid color – the PNG format can compress image data more than JPEG can. Additionally, PNG is lossless, while JPEG produces visual artifacts around high-contrast areas.
There are many formats that can be used, such as JPEG, PNG, and GIF. Most formats up until 2022 were for storing 2D images, not 3D ones. The data stored in an image file format may be compressed or uncompressed. If the data is compressed, it may be done so using lossy compression or lossless compression.
JPEG typically achieves 10:1 compression with little perceptible loss in image quality. [3] Since its introduction in 1992, JPEG has been the most widely used image compression standard in the world, [4] [5] and the most widely used digital image format, with several billion JPEG images produced every day as of 2015.
Huffman coding is a fundamental technique used in image compression algorithms to achieve efficient data representation. Named after its inventor David A. Huffman, this method is widely employed in various image compression standards such as JPEG and PNG. Principle of Huffman Coding
If a diagram cannot be produced in SVG, then a PNG image is preferred over a JPEG. The PNG compression algorithm is designed to work with large areas of solid colour that have sharp boundaries. It is therefore a good format for diagrams and cartoons.
WebP is a raster graphics file format developed by Google intended as a replacement for JPEG, PNG, and GIF file formats. It supports both lossy and lossless compression, [8] as well as animation and alpha transparency .
pngcrush is a free and open-source command-line utility for optimizing PNG image files. It reduces the size of the file losslessly – that is, the resulting "crushed" image will have the same quality as the source image.
Unisys (compression algorithm) .gif, .gfa, .giff image/gif ... None, RLE, JPEG, and PNG Raster 16 bpc Yes Yes No No No No No Yes No No BPG: HEVC, Lossy and lossless
Besides lossless compression, JPEG-LS also provides a lossy mode ("near-lossless") where the maximum absolute error can be controlled by the encoder. Performance. Compression for JPEG-LS is generally much faster than JPEG 2000 and much better than the original lossless JPEG standard.
ECW – a wavelet compression format that compares well to JPEG 2000. High bit rate media transport; JPEG-LS – another lossless image compression standard from JPEG. JPEG XL - Long-term replacement for JPEG 2000, JPEG-LS, JPEG, and related formats. JPIP – JPEG 2000 Interactive Protocol