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Repairing damaged JPEG image based on SOS marker
Often the damaged image has its metadata and service tables damaged as well. This makes it impossible to correctly determine the beginning of the JPEG image. However, in this case there is a way to locate the beginning of the image using the Start of Scan (SOS) segment. While this method may give "false positives" sometimes, it still works in many other situations.
The Start of Scan segment immediately precedes the encoded graphical data, but does not contain much information about the image itself. So the program simply does what it can do: it automatically produces a number of combinations of available metadata and graphical information, and then allows the user to select the most appropriate variant.
The program takes metadata from those JPEG files that were found during the scan of the loaded file or the disk image. If you know for sure what camera was used to make the image, you can manually add more variants of metadata by using the File > Open metadata sample and open a correct JPEG image made with the same camera.
Aside from that, repairing such an image is not different from repairing the image with fully available metadata.
IMPORTANT! Images in the SOS folder and all the subfolders are not present in other folders including All, Size, Camera, and Date.