Hybrid Image Retargeting

An image retargeting method is presented in this paper, which uses multiple operators to improve the performance. In the method, cropping is adopted first in order to remove non-important content to the desired aspect ratio while keeping significant content intact. If the desired aspect ratio cannot be met by cropping, an aspect ratio adjusting method is then adopted to fit the image to the desired aspect ratio. Uniform scaling is used in the last stage to adjust the image to the desired size. Since aspect ratio needs no change, the scaling can retain all the information without causing any distortion. Since different operators are applied in different stages, their benefits are fully utilized and drawbacks can be avoided. Experimental result shows that this approach can improve the retargeting performance at a low computation cost.