MATLAB training program (automatic focus)
2016-08-23
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MATLAB training program (automatic focus) auto focus need to judge the image blurry or clear level. Of course, the real focus also needs to fit the hardware, I don't engage in hardware, so it wouldn't have to be concerned on the one hand. There are three main evaluation method: 1. the grayscale method changes to judge gray, I use global variance, but not worked. Experimental local variance, but due to the computational problems, nor did he make any results. 2. edge evaluation method is very simple, based on image edge detection, such as Sobel,Prewitt,Roberts, and so on all kinds of edge detection, and then find the best edge of that picture. 3. energy method for image detail, the richer the Fourier decomposition of frequency more so the energy can also be used as a criterion.
matlab
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