| Figure 7 (a, b, c) Lossy compression artifacts: the sample image is saved at progressively higher compression levels, starting at 1:1, then 1:10, then 1:30. Even at 1:30, the image remains very legible, though obvious visual glitches are present; (d) the 1:30 compressed image when zoomed at 5x. There is obvious smudging of detail, as well as a “blocking” artifact; a key characteristic of the JPEG lossy compression format. |
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