Iterative Retargeting of Images
| Autor: | Chia-Feng Wang, 王嘉豐 |
|---|---|
| Rok vydání: | 2012 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 100 In recent years, mobile devices getting more and more developed, it has become an indispensable necessity for modern people. In order to make users have good experience, image retargeting is necessary for any screen size of mobile devices. In addition, traditional image retargeting methods couldn’t satisfy all kinds of images such as buildings, people and landscapes. In this thesis, an improved warping-based method which is suitable for all kinds of subjects is proposed. Our method works well even when retargeting intensely. The implementation of the system is based on warping method and iterative calculation. Users can initialize grid and the number of iterations in accordance with the size of images. We take half saliency map value and half distance transform map value as the features, then combining these features and two objective functions. We could obtain new aspect ratios after iteration until the image reach goal. Our experiment results also verify that the method which we proposed in this thesis can improve the distortion of images. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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