Regular Clipping Detection of Image Based on SIFT

For the issues that the cropped level of image is detected and the cropped region of image is determined, a new scheme is proposed that is based on SIFT (Scale-invariant feature transform) for the regular clipping operation under the situation of existing original image. Features points of original and testing images are extracted by SIFT algorithm, and the matching are done between the corresponding features points. According to the relative position relations among matching points, the scaling of testing images corresponding to the original can be calculated, and further the cropped region can be determined. The experimental results show that the detection way works well for the regular clipping.