| |
| The clarity and efficiency of the generated image is an important indicator which measures the quality of image zooming. Compared image which is obtained by existed zooming algorithm with the real images, it is more blurrier and consumes much time. On the basis of the existing scaling algorithm, this paper presents a zooming image by a combination of bi-cubic polynomial with edges as twice constraints algorithm. Algorithm is divided into two parts, in the first process, suppose the original scene surface corresponding to given data of the image can be represented by piecewise quadratic polynomial surface, and we can obtain the fitting surface by reversing of solving the image data. Then,by integrated to he fitting surface we can obtain a zooming image which is more blurrier in visual and fidelity. The initial image contains a lot of details of the information, but does not reflect visually. In the second process, it is the purpose that extracts the hide information and makes the image has better visual effect. By comparison, the new algorithm has better amplification effect and higher precision in visual, and spent less time. |
|
| Keywords:image zooming; a combination of bi-cubic polynomial; piecewise quadratic polynomial surface |
|
