| US 7,613,347 B1 | ||
| Low-complexity image coding | ||
| Anubha Rastogi, Delhi (India); and Balaji Krishnamurthy, Delhi (India) | ||
| Assigned to Adobe Systems, Incorporated, San Jose, Calif. (US) | ||
| Filed on Dec. 13, 2005, as Appl. No. 11/303,076. | ||
| Int. Cl. G06K 9/36 (2006.01) | ||
| U.S. Cl. 382—232 | 26 Claims |
| 1. A method, comprising:
using a computer to perform:
receiving a digital image;
performing a wavelet transform operation on the digital image to produce transform-domain coefficients;
quantizing the transform-domain coefficients to produce quantized coefficients; and
compressing one or more, but less than all, bitplanes of the quantized coefficients using a non-arithmetic encoding, wherein
the one or more bitplanes that are compressed have a more significant bitplane position and less entropy than one or more
bitplanes of the quantized coefficients that are not compressed.
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