Saliency and memorability driven retargeting

Wide range of display devices led to the requirement of resizing an image by preserving important information of an image. Image retargeting is the process of changing the size or aspect ratio of an image according to the target display size. The motive of the proposed approach is to remove or add a seam (making a single pixel path from top to bottom or left to right) in order to change the image size. By iteratively removing or adding lowest energy seams, size or aspect ratio of an image can be changed. The proposed image retargeting approach makes use of a combination of global (saliency, memorability) and local (corner measure) energy measures in order to define energy contribution of a pixel. Quantitative assessment of the proposed approach is carried out by a recent quality assessment metric which makes use of global geometric structures and local pixel correspondences. We show that the proposed approach is able to achieve state-of-the-art results for various types of natural images.