In order to solve the current image quality due to unstable and inaccurate segmentation in image matching error analysis and optimization of rent, the segmentation of image quality based on the proposed operator, image quality analysis and image segmentation based on matching system. Firstly, according to the contrast of the image, the quality evaluation function is set up. By adjusting the camera exposure, the purpose of image contrast is clear. Then, the target segmentation operator is designed by threshold segmentation and morphological processing. Finally, the integrated image quality optimization operator and segmentation in image matching system, and programming, the experimental test results show that compared with the current image matching method, this method has higher accuracy.