With the vigorous development of technology, more and more people rely on various computer and 3C products. Computer can enrich our live to make our thinking more colorful, but it is limited to the indoor environment because computer is not easy to carry anywhere, even for the notebook. For this reason, more kinds of 3C products with a small size have gradually increased then become the primary choice for playing around. However, the 3C products are not convenient to show the content of image or video clearly. Therefore, lots of techniques which related to image/video retargeting have been proposed to solve the problem in recent years. Nevertheless, these related techniques can retarget the image/video for the most of mediums, but for some certainly pictures or videos, which contain lots of straight lines. It will cause bad result because the line structure had been destroyed. By comparing the paper, the proposed method could perform well especially in some certainly image or video which contains lost of straight lines. We also compared our further improvement with some previous methods to verify the better result we proposed. The first section introduces some of proposed researches which related to image/video retargeting. The related method and the proposed method are shown in Section 2 and Section 3, respectively. Finally there are some convincing results and conclusions are shown in section 4 and 5, respectively.