Image Super-resolution Reconstruction Method Based on Multilayer Support Vector Regression Machine Model
A support vector regression and model technology, applied in the field of image processing, can solve problems such as super-resolution reconstruction of difficult images, and achieve the effect of rich texture and clear edges
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[0041] refer to figure 1 , the specific embodiment of the present invention is as follows:
[0042] Step 1, create a training sample library of high-resolution brightness images and low-resolution brightness images.
[0043] (1a) Randomly download a color high-resolution natural image from the Internet;
[0044] (1b) Use the function rgb2ycbcr in matlab to map the high-resolution color image from the RGB space to the YCbCr space, then obtain the luminance signal from the YCbCr space, and use the black-and-white grayscale image composed of the luminance signal as a high-resolution luminance image. Brightness training image creates a high-resolution brightness image training sample library;
[0045] (1c) Take pixels from the high-resolution brightness image at intervals to obtain a low-resolution brightness training image downsampled by 2 times, and use the low-resolution brightness training image to create a low-resolution brightness image training sample library.
[0046] S...
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