关键词: 图像放大, 差分投影, 梯度扩散, 分辨率, 去噪

Abstract:

A fast differential projection image interpolation algorithm is proposed to address the problems of reduced image resolution and poorer quality of perception in image magnification with complexity of calculation in consideration.The loss of the high resolution image pixels is determined by low resolution image gradient diffusion and the algorithm is optimized by a special denoising method and compared with the nearest neighbor interpolation method and bilinear interpolation algorithm.The experimental results show that the method has higher resolution and lower computational complexity than other methods.

Key words: image magnification;difference projection;gradient diffusion;resolution;denoising