基于小波融合的图像放大方法

提出一种基于小波融合技术与传统图像放大算法的结合的方法.该算法首先对源图像分别采用双三次插值和改进的双线性插值进行放大,然后对两幅放大后的图像进行小波分解,并对分解后得到的小波系数进行融合,增强图像轮廓,最后进行小波逆变换得到目标图像的重构.通过实验对比,采用所提算法放大的图像视觉效果明显,轮廓清晰,消除了传统放大算法的模糊和锯齿现象.

An Algorithm Based on Wavelet-fusion for Image Enlargement

This paper presents a wavelet-based image fusion algorithm combining the interpolation method of amplification.First,the source image are used bicubic interpolation and bilinear interpolation to improve the amplification.Then,two enlarged images are decomposed and the decomposed wavelet coefficients are fused to enhance the image contour,the final target for inverse wavelet transform image reconstruction.Through the experiment this paper compares the proposed algorithm in this paper with other methods to enlarge the image,the visual effect is more obviously,outline clearer,and eliminating the traditional amplification phenomenon of fuzzy and jagged.