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Discrete wavelet transform apparatus and method which can adaptively encoding a still image based on the block-by-block energy
Discrete wavelet transform apparatus and method which can adaptively encoding a still image based on the block-by-block energy
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机译:可以基于逐块能量对静止图像进行自适应编码的离散小波变换设备和方法
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摘要
A discrete wavelet transform coding apparatus capable of adaptively on the basis of the block-by-block energy of a still image is started. Discrete wavelet transform unit, for calculating the energy in a block unit composed of an image input to the predetermined pixel energy calculator, image decomposition, depending on the size of the energy values calculated in units of blocks to variable-level de-composition process the blocks adaptively part, and of the corresponding block in the adaptive variable-level de-composition region on the basis of the energy value of the affected part has a coefficient of reconstructing an image by replacing a region in which the high frequency component distribution to zero. ; Still images, the wavelet, JPEG 2000, energy calculation, Composition D, coefficient substitution
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