Image Enhancement Algorithm Using Brightness Preserving Multiple-Interval Histogram Equalization

摘要

For the low illumination image (such as the X light medical image) enhancement processing, proposed one kind of image enhancement method of multiple section histogram equalization for brightness preservation. Using the cumulative function to calculate the average brightness value, the 0-255 gray interval would be divided into four intervals; the histogram equalization algorithm was performed on each interval. The experimental results showed the algorithm which enhanced the image visual effect is good, and a good solution to the traditional histogram equalization overfull-enhancing phenomenon.