Steps Shown:
1: JPEG Image file
2: Open Image
3: Shift image to the right by 1 to 7 pixels
4: Resave the shifted image as JPEG of same Quality factor
5: Open the recompressed JPEG file
6: Note the additional error in the image
Figure 3: Basic Flow Diagram of Image Shift and Recompression

(Image quality not important for this illustration--just the

process.)

 

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