Method for dynamically increasing video image effect of vision
A video image and visual effect technology, applied in image communication, color TV parts, TV system parts and other directions, can solve the problem of flicker in algorithm expression, and achieve the goal of solving flicker, improving visual effect, and improving image contrast. Effect
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[0037] Such as figure 1 with Image 6 As shown, the present invention provides a method for dynamically improving the visual effect of video images, by setting inflection points in different situations to obtain different mapping functions to improve image contrast, which includes the following steps:
[0038] Step 1. Read in the entire image, calculate the luminance map of the video image, and obtain the luminance information function f(i, j) representing the pixel point in the i-th row and j-column of the image, the luminance average value M of the entire image, and the minimum luminance Value Min and maximum brightness Max;
[0039] Step 2. Determine whether the image belongs to the situation of uneven brightness distribution:
[0040] Step 2.1. Divide the image into four blocks of 2×2, obtain the average brightness value of each small block image respectively, and take the maximum average value M among them max and the minimum mean M min ;
[0041] Step 2.2, by combin...
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