关键词: 单像素模板, 动态模板, 像素分割, 高斯模板, 双线性插值, 图像旋转

Abstract: Image rotated by Gaussian template will become blur seriously，which is because of weighed average of luminance in a large adjacent region.In order to minimize the weighed averaged region，a principle of local small neighborhood relativity is proposed，according to which a dynamic single pixel template algorithm is proposed to perform special transformation.The present pixel is split into sub-pixel of 3×3.A template for each sub-pixel is designed.The luminance of transformed pixel is the convolution of one of the nine templates with the adjacent pixels’ luminance.Experiments and analysis show that the algorithm has resolved the blur problem of rotated image.The quality of rotated image by the algorithm is near to that of the bilinear interpolation algorithm，and the performance is higher than that of the bilinear interpolation and Gaussian template.

Key words: single pixel template, dynamic template, pixel segmentation, Gaussian template, bilinear interpolation, image rotation