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A thumbnail, a smaller JPEG file for quick viewing, and the sensor image data.

The structure of RAW files, including the ISO standard RAW image format ISO 12234-2, follows a common pattern - a short header, camera sensor metadata, image metadata such as exposure settings, camera, and lens model, date, and sometimes the location. JPEG typically achieves 10:1 compression with little perceptible loss in image quality. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality. JPEG is a commonly used method of lossy compression for digital images, particularly those produced by digital photography. RAW image formats are intended to capture as closely as possible the scene's characteristics to include light intensity and colors. RAW files are named so because they are not yet processed and ready to be printed or edited with a bitmap graphics editor. RAW file formats contain minimally processed data from the digital camera's image sensor - the metadata includes information about the lens, the settings, the camera's identification, and other data.

However, PNG was designed for transferring images on the Internet, not for professional-quality print graphics, and therefore does not support non-RGB color spaces such as CMYK.Īdobe Photoshop, Paint Shop Pro, the GIMP, GraphicConverter, Helicon Filter, ImageMagick, Inkscape, IrfanView, Pixel image editor, Paint.NET, Xara Photo & Graphic Designer.Īdobe Photoshop, Paint Shop Pro, the GIMP, ImageMagick, IrfanView, Pixel image editor, Paint.NEF, otherwise known as the Nikon Electronic Format, is Nikon's RAW file format. PNG supports palette-based images (with palettes of 24-bit RGB or 32-bit RGBA colors), grayscale images (with or without alpha channel), and full-color non-palette-based RGB images (with or without alpha channel). However, PNG itself does not support animation at all. PNG was created as an improved, non-patented replacement for Graphics Interchange Format (GIF) and is the most used lossless image compression format on the Internet. Portable Network Graphics (PNG) is a raster graphics file format that supports lossless data compression.