【图像插值】基于稀疏拉普拉斯滤波器处理红绿蓝三种像素实现插值效果附matlab代码

1 内容介绍

本文研究了一种空域中的图像分解技术,进而利用改种分解方法,探 讨了图像插值算法.本文提出的图像分解方法的主要思想是:利用类型确定的滤波器(如低通)对原始图像滤波,将图像分解为高频和低频两部分,并对分解得到的 低频或高频成分进行处理,图像可分解成不同频率分量的图层之和,进而在各个图层上进行相应的插值处理,最后利用逆变换得到最终的结果.

2 仿真代码

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%   Implementation of 'Minimized-Laplacian Residual Interpolation for Color Image Demosaicking' 

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%   This code is available only for reserch purpose.

%   If you use this code for future publications,

%   please cite the following paper.

% 

%   Daisuke Kiku, Yusuke Monno, Masayuki Tanaka, and Masatoshi Okutomi,

%   'Minimized-Laplacian Residual Interpolation for Color Image Demosaicking',

%   IS&T/SPIE Electronic Imaging, Digital Photography X, 2014.

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%   Main funtion

%     rgb_dem = demosaick(rgb, pattern, sigma)

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%      Input

%       - rgb :