Image brightness and contrast optimization in real time

摘要

The present invention relates to a method for capturing an image (10). The method involves the next step: detecting a range with a sensor (100), generating an image (20) of a range having a predetermined number of pixels indicating a brightness value, and a block having a predetermined first size ( A step of dividing the image (20) into 30), and a step (200) of creating an auxiliary image (40) by reducing the block (30) to a predetermined second size smaller than the predetermined first size. , Steps to sort the pixels of each block (30) of the auxiliary image (40) according to the pixel brightness value (300), which needs to be processed to achieve maximum brightness and / or maximum contrast. For the pixels of the associated block (30), a processing function from the processing parameters (51, 52), step (400) of determining the processing parameters (51, 52) for each block (30) based on the sorted pixels. It includes a step (500) of interpolating (61, 62) and a step (600) of applying a processing function (61, 62) to the pixels of the image (20) to generate the image (10).