Light Uneven Image Enhancement Study

In the process of collecting the image,because of the relatively poor light environment or the reflection of the object surface or other reasons,the image can be caused by the uneven illumination of the image or the partial illumination.Therefore,we should deal with the image in the light of the problem of uneven illumination.The image preprocessing algorithm for uneven illumination is studied,and the main research is the image enhancement.Image enhancement plays an important role in the direction of image processing.In this paper,we study the image enhancement in frequency domain,and finally solve the problem of uneven illumination by using the method of homomorphic filtering.At the same time,studying the gray transformation and the hybrid space enhanced part of the classical algorithm and optimization method,various processing algorithms with C + + programming language to achieve the eventually developed MFC operation software of illumination uneven image preprocessing and analysis of the processing results can be.