Image name: Earth.tif
Original Image Format: TIFF
Original Image Size: 3409489 bytes
Size after compression using my tool(without Huffman
Encoding): 285771 bytes
Compression Ratio: 11.93
Size after compression using my tool and adaptive
Huffman Encoding & LZ77: 56455 bytes
Compression Ratio: 60.39
Size obtained after doing standard JPEG compression:
43645 bytes
Compression Ratio: 78.12
(I have converted the TIFF images to JPEG's as netscape does not display PGM images)
The Original and Reconstructed Images :-
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Zoomed in portions of the original and the Reconstructed
images showing blocking artifacts inherent in the JPEG scheme :-
Both images are at 800% Zoom.
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Though my JPEG implementation shows significant blocking,
actual JPEG implementations are slightly better and show lesser blocking but it is present.
Page last updated on 28 January, 2004. | AT cse.iitd.ac.in | © Parag Chaudhuri , 2009 |