| 摘要 |
An image processing device and method in which a class classifying unit uses information from an orthogonal transform unit, a quantization unit, and a lossless encoding unit to classify an image into a class according to whether or not mosquito noise occurs for each macroblock, and supplies a classification result thereof to an adaptive loop filter. The adaptive loop filter performs calculation of a filter coefficient so as to minimize residual error between the original image from a screen rearranging buffer and the image from a deblocking filter, and performs filter processing on the decoded image from the deblocking filter using this filter coefficient. The device and method may be applied to an image encoding device for performing encoding with the H.264/AVC format as a basis, for example.
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