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====== NEF (Nikon RAW format) ====== NEF includes an embedded, full size, jpeg copy. Roughly equivalent to exporting using the "basic" (lower quality setting, 85% jpeg-quality). This jpeg contains no metadata though (it could be re-injected from the source NEF). According to this blog post D200 produce exactly the same images (basic conversion vs embedded); my tests on a D60 show some difference (e.g. the image is slightly cropped). ===== Useful commands ===== Extraction of embedded jpg: $ exiftool -b -JpgFromRaw image.nef > image.jpg Copy of exif data: $ exiftool -TagsFromFile source.nef target.jpg Alternatively: $ exiv2 ex -e e source.nef # Extraction * $ mv source.exv target.exv # Names must match $ exiv2 in -i e target.jpg # Injection * Also: \\ <code>$ exiftool -exif -b source.nef > target.exv</code> Comparison of images: $ compare -metric MSE source1.jpg source2.jpg diff.png Also useful metric: ''PSNR'' Maker-specific extra detailed information (Lens model, shutter count, focus mode…): $ exiftool -nikon FILE.NEF|FILE.JPG Extraction of ICC profile (In-camera files don't include them, at least on the D60; RAW processing software usually does embed them): $ exiftool -icc_profile -b FILE.JPG > profile.icc Insertion of ICC profile (Required for embedded JPGs shot in AdobeRGB –Nikon's color mode II–): $ exiftool '-ICC_Profile<=InputFile.icc' FILE.JPG ==== History ==== * 2009-07-10: Added exiftool's -exif, -TagsFromFile, -nikon and -icc_profile * 2009-06-19: Initial version ==== Useful references ==== * [[http://www.sno.phy.queensu.ca/~phil/exiftool/metafiles.html|Metadata Sidecar Files]] (handling with exiftool) * [[http://regex.info/blog/2006-12-08/303|NEF, Color Space Settings, and Embedded JPGs]] ---- Last update: July 10th 2009