High-quantization-bit infrared image information amount maximization enhancement method

The invention relates to a high-quantization-bit infrared image information amount maximization enhancement method, and belongs to the technical field of image enhancement. Obtaining a minimum pixel value 10 and a maximum pixel value u0 according to an infrared image X of m rows and n columns of pixels; setting a quantization bit B, a step length T, a maximum iteration step number S, an initialized maximum information amount E, an iteration step number s, an initial pixel value lower limit l1 and a pixel value upper limit mu1; calculating a lower limit position direction list # imgabs0 # of pixel values by lower limit direction labels, calculating an upper limit position direction list # imgabs1 # of pixel values by upper limit direction labels, and calculating and updating the maximum information amount by direction list labels, so as to obtain an enhanced result image Z; according to the method, the image information amount can be effectively increased, the original image information is kept to the maximum