NEF is based on the TIFF format.Īdobe Photoshop, Adobe Photoshop Lightroom, Paint Shop Pro, Picasa, digiKamĪdobe Photoshop, Paint Shop Pro, the GIMP, ImageMagick, IrfanView, Pixel image editor, Paint. 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. The page shows an example using pnmtopng, which converts the NEF files to PNG, but can be swapped with pnmtojpeg to convert them to JPEG. RAW files are named so because they are not yet processed and ready to be printed or edited with a bitmap graphics editor. I shoot in RAW with my Nikon D3100 and used the following to convert images to JPEG format (Ubuntu): 'Working with RAW Files' section of this page. 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. NEF, otherwise known as the Nikon Electronic Format, is Nikon's RAW file format.
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