Research and realization of perspective correction technology for document image

In this paper, we set up a system which can correct the perspective distortion of document image. This system includes the operation of image preprocessing. This paper takes the information of document frame or document basing on the number of document frame. This paper uses the information obtained to correct the perspective distortion of document image. Experimental results show that this method can effectively correct perspective distortion image and the calibration accuracy and efficiency can be significantly increased.