Image magnification method of 66 image magnification template fused with vertical gradient

The invention provides an image magnification method of a 6 * 6 image magnification template fused with a vertical gradient, which comprises the following steps: determining a pixel compensation area of an image to be magnified, and extracting pixel points and pixel values of the pixel compensation area; constructing compensation pixel points in the pixel compensation area according to a preset magnification factor; constructing a 6 * 6 image magnification template; calculating a compensation pixel value of the compensation pixel point according to the 6 * 6 image amplification template, the compensation pixel point, the extracted pixel value and the vertical gradient; constructing a compensation pixel block according to the position of the compensation pixel point and the calculated compensation pixel value; and replacing the pixel points with the compensation pixel blocks to generate an amplified image. According to the method, the peak signal-to-noise ratio and the structural similarity of the amplified im