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Repairing fragmented JPEG fileSometimes the JPEG image won't open and display after extraction from the disk image because the file is fragmented. That is, in place of the JPEG bit stream expected by the decoder there is some other data that prevents decoding of the remaining part of the image. In this case you can try to eliminate damages by excluding fragmentation. To do this, turn off particular clusters in the Cluster list (the leftmost area of the Repair window) from the stream. Select the damaged MCU in the Preview area. The selection automatically selects the corresponding cluster in the Cluster list. When you move the cursor in the preview area, it also moves in the Cluster list. When you switch the focus to the Cluster list, you can select and deselect clusters by pressing Space. The cursor moves to the next cluster then, and the program recalculates the image data without the given cluster. Pressing the Space button again, will turn the cluster on. This way, by selecting and deselecting clusters and tracking visual changes on the image, you can gradually restore the original image. Video demonstration: |