Improved Method for Real-time Image Correction Based on the Control Point

Abstract

In order to correct the distortion of images taken by mobile phone and solve the problem caused by selecting control points in man-machine interaction, an improved real-time image correction method is proposed. Firstly, all corner points on the test image are identified by algorithm and control points are extracted automatically from them. Then, we calculate the correction coefficient and store them on the control point method. After the correction of the image, the effective region is adaptive amplified. The experiment shows that it can correct the image with trapezoid distortion quickly and effectively, and meet the expected functional requirements.