The Comparison of Image Retargeting Algorithms Based on Seam Carving

All kinds of image retargeting algorithms based on seam carving are the representative types of discrete resizing methods. Seam carving algorithm refers to delete or insert pixel lines to resize image's technique. Pixel line pass through the whole image horizontally or vertically, deleting the pixel line makes the reduction, and copying the pixel line can make the magnification, processing level (vertical) pixel line can change image's height (width). In order to protect the main characteristic of image content, seam carving algorithms delete or insert pixel line which has the smallest energy every time. Various seam carving algorithms can scale the image's size, protect the important content of the source image, achieve good effect of adaptation, but this kind of algorithm will produce problem, such as excessive deleting distortion.