Description: This article Laijiang Jiang Mat stored in pixels how to scan them? Scan efficiency and how? The article reference the opencv comes tutiol its code. Experimental feature: you can manually choose to open the picture on the computer. Four kinds of scan efficiency matrix Mat these four kinds of scanning methods: continuous direct memory access access iterator direct pixel access access the LUT lookup table these four kinds of scanning methods select in the menu bar. Visit after each access to the pixels of the pixel to be compressed, compression interval can be modified in the software interface. The bottom of the software shows the average time used by each sub-scan method to scan to open the picture (the program is set to seek 100 times the average)
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