Daekyu Shin

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In order to search images in a database, a content based image retrieval methods are widely used for finding visually similar one to a given sample image. The approaches using Gabor functions and filters are regarded as one of the excellent methods for feature extraction and texture segmentations. However, the Gabor method does not perform well specifically(More)
The two-dimensional Discrete Cosine Transform (DCT) is widely used and probably the most popular method in transform-based image processing and video coding systems since it achieves very high compression ratio and packs the video signal energy into a few coefficients thereby the DCT has well-known decorrelation and energy compaction properties for typical(More)
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