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Image enhancement device, image enhancement method, image enhancement program, and signal processing equipment
Image enhancement device, image enhancement method, image enhancement program, and signal processing equipment
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机译:图像增强装置,图像增强方法,图像增强程序和信号处理设备
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摘要
The present invention can improve the image quality by sharpening sufficient image even if by making appropriate compensation high frequency with a simple configuration, image enlargement processing is performed even if the video as well as still pictures I is an object of the present invention. Extracted as the first signal S1 high-frequency components from the input image signal Sin to (11) HPF, 2 square operation unit (12) generates a square signal S12 by squaring the first signal S1. (13), to generate a first differential signal S13 by differentiating the squared signal S12, a second differentiator (14), a second differential signal S14 by differentiating the input image signal Sin first differentiator I want to generate a. Multipliers (15) produces a second signal S2 by multiplying the second differential signal S14 from the first differential signal S13. An adder (16) generates an output image signal Sout by adding the input image signal Sin as a compensation signal to the second signal S2.
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