Computer graphics (2nd ed.): C version
Computer graphics (2nd ed.): C version
Image Analysis and Mathematical Morphology
Image Analysis and Mathematical Morphology
Image coding based on a morphological representation of wavelet data
IEEE Transactions on Image Processing
WaveGuide: a joint wavelet-based image representation and description system
IEEE Transactions on Image Processing
An approach to compressed image retrieval based on JPEG2000 framework
ADMA'05 Proceedings of the First international conference on Advanced Data Mining and Applications
MRCS'06 Proceedings of the 2006 international conference on Multimedia Content Representation, Classification and Security
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As the latest effort by JPEG in international standardization of still image compression, JPEG-2000 contains a range of important functionalities superior to its earlier DCT based versions. In the expectation that the compression standard will become an important digital format for many images and photographs, we present our recent work in this paper on image indexing and retrieval directly in wavelets domain, which is suitable for JPEG-2000 compressed image retrieval without involving its full decompression. Our methods mainly extract shape and texture features from those significant wavelet coefficients and transform their energy into histogram-based indexing keys for compressed image retrieval. While our method gains the advantage that decompression can be eliminated, the experiments also support that the retrieving accuracy is better than the existing counterparts.