## TSPL插值算法在图像放大方面的应用

Abstract With the development of the times, the application of image in people’s life is getting wider and wider and people’s demand of the quality of image is higher and higher. The research on how to get high-resolution image from low-resolution image with limited pixels becomes valuable such as the technology used in the aspect of military, aviation and medical and so on. In the aspect of image enlargement, there are still lots of problems in the existing classical interpolation algorithms such as there will be mosaic phenomenon at the edge of the image after interpolation and the image may become fuzzy too. 源￥自%六^^维*论-文+网=www.lwfree.cn
The advantage of classical interpolation lies in computing convenience, but nowadays, people’s demand of the quality of image getting higher and higher, the original classical interpolation algorithm can’t meet the needs completely. So the new interpolation methods such as B-spline interpolation and some improved classical interpolation algorithm and so on come out.
Three classical interpolation algorithms are realized in this paper. And a new interpolation algorithm which proposed by a new algorithm for interpolation from images based on TSPL is realized too. In this paper, a new interpolation algorithm is proposed, firstly, we pide an image into a number of basis of functions, secondly, we enlarge the various basis functions one by one, then add the sum of these enlarged basis functions into a new image, and the new image is the enlarged image. Through the examples and the analysis of subjective and objective view comparison of several classical interpolations and the interpolations based on TSPL, we found that the quality of the image enlarged by the new interpolation is better.
Keywords: interpolation; image enlargement; bilinear interpolation; TSPL interpolation algorithm; matlab image processing;

1.绪论    1
1.1  研究背景、目的和意义    1
1.2  图像插值放大技术的国内外研究现状    1
1.3  图像插值放大技术的应用与发展趋势    2
1.4  论文内容    2
1.5  论文结构    3
2.三种经典图像插值方法    5
2.1  最近邻域插值法    5
2.2  双线性插值法    6
2.3  双三次插值法    7
3.基于TSPL的图像放大算法    9 源￥自%六^^维*论-文+网=www.lwfree.cn
3.1  TSPL算法描述【5】    9 TSPL插值算法在图像放大方面的应用:http://www.lwfree.cn/shuxue/20190503/32896.html
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