Texture Descriptors From Compressed Images
نویسنده
چکیده
Images can be compressed in multiple ways. The new JPEG2000 standard uses an algorithm called EBCOT and the Discrete Wavelet Transform, while the ordinary JPEG standard uses the Discrete Cosine Transform (DCT). Other compression methods use frequency-domain analysis with Gabon Filters, Radon Filters and other Wavelet Filters. Sim et al.[2] present an algorithm for obtaining texture descriptors of compressed images in the DCT domain. This site will explain how to obtain texture descriptors from an image compressed using wavelet filters and makes use of spatial-frequency domains. This method could also be used on images compressed using DWT.
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تاریخ انتشار 2006