The current version of ExifTool recognizes 24,286 structure tags.
ExifTool supports around 200 types: Canon, Nikon, Sony, JPEG but also doc, pdf, etc. Performance and limitationsĭNG files aren’t the only ones that contain metadata. There are graphical interfaces, to be installed separately. Exiftool does not have a GUI and runs in console mode. ExifToolĮxifTool ( link) is a small free program available for Windows, Mac OS and Linux / Unix. Make-up consists of modifying the value of two metadata fields. * Model which corresponds to the model of the device, we will have guessed it * Make which indicates the brand of the device The EXIF and XMP structures contain the two pieces of information that will allow us to make-up our photos. * OR the raw photo of the sensor in proprietary raw format * Two preview images in JPEG format, original size and one thumbnail * Data on the interpretation of the photo * Mathematical data on color profile and curve XMP is better structured, it contains identifying tags which improve the compatibility of the photo – XMP usually contains the same information. – EXIF, This is the historical information block, which can be found in almost all photo formats * The header contains the description of the structure It’s up to the user to find out the right substitute camera, and assume the disadvantages of this method for a lack of anything better.Ī digital photo file does not only contain the image, it also contains textual and mathematical data arranged in a specific format, the metadata.įor the explanation we have used an example photo in DNG format, but the disguise method can be applied to other image formats.Ī standardized photo file in DNG format is structured as follows: The result may be unsuitable, at worst unreadable. By making it believe that the photo from an incompatible device comes from a supported device, PhotoLab reads information and applies optimizations that do not necessarily correspond to the camera that created the photo PhotoLab is a sophisticated editor that uses the information contained in photos. We will see how to make Photolab believe it was taken with a compatible device by disguising the photo. The message states that it is the camera rather than the photo that is not supported. You were surely disappointed when reading this error message when opening a photo in Photolab.
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