A Review of Image Enhancement Technology Research

Image enhancement technology is a commonly used way in digital image processing, which can improve image quality, highlight the useful information in the image according to people's actual needs, and suppress the redundant information of the image. Image enhancement technology greatly improves the visual information of people observing images. However, image enhancement technology is also affected by viewing conditions, imaging mode and working tasks, so appropriate methods should be selected appropriately. This paper introduces several commonly used image enhancement algorithms, with emphasis on spatial domain processing. The process of image enhancement is a contradictory one. Image enhancement not only wants to reduce noise interference, but also wants to enhance edge information. However, enhancing the edge information also means increasing the noise, and reducing the noise also makes the edge information blurred. Therefore, when performing image enhancement, it is necessary to make a compromise between these two parts and choose a suitable method to achieve the purpose of enhancement.