Low-bit compressed image deblocking method based on visual sensitivity and spatial filtering
A technology of spatial filtering and deblocking effect, applied in the field of image processing, can solve problems such as block effect distortion
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[0050] Such as Figure 1 to Figure 5 As shown, a kind of low-bit compressed image deblocking effect method based on visual sensitivity and spatial filtering of the present invention, the method comprises the following steps:
[0051] The first step: divide the input distorted image into flat area, edge area and texture area according to the visual sensitivity characteristics;
[0052] Step 2: Select the Sobel operator to extract the gradient information of the image pixels. After calculating the gradient value of the entire image, use three component models, set the threshold, and divide the image into edge area, texture area and flat area. area;
[0053] Step 3: Divide the three areas of the distorted image into 8×8 blocks, and the distorted image area is further divided into flat blocks, edge blocks, and texture blocks; the block type is determined by the texture corresponding to the most texture pixels in the block type decision;
[0054] Step 4: According to the type of...
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