msr算法matlab代码
时间: 2023-11-26 22:46:02 浏览: 295
MSR算法是Retinex算法的一种,它可以用于图像增强。以下是MSR算法的Matlab代码:
```matlab
function [out] = MSR(image, a, b, alpha, beta, G)
%MSR Summary of this function goes here
% Detailed explanation goes here
[m, n, ~] = size(image);
out = zeros(m, n, 3);
for i = 1:3
I = double(image(:,:,i));
L = log(I + 1);
Lw = imgaussfilt(L, G);
Lwd = L - Lw;
Lwmax = max(max(Lw));
Lwmin = min(min(Lw));
Lw = (Lw - Lwmin) / (Lwmax - Lwmin);
Lw = a + b * Lw;
Lw = Lw .^ alpha;
Lw = Lw .* (beta - 1) + 1;
Lw = Lw .* Lwd;
Lw = Lw + L;
out(:,:,i) = exp(Lw) - 1;
end
out = uint8(out);
end
```
其中,a、b、alpha、beta和G是算法的参数,image是输入的图像。这段代码实现了MSR算法的核心部分,即对图像进行对数变换、高斯滤波、计算权重、调整权重、再次计算权重、最终输出等步骤。
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