提取gabor小波40个能量值的matlab代码
时间: 2024-05-15 08:16:56 浏览: 22
下面是提取Gabor小波40个能量值的MATLAB代码:
```matlab
% 读取图像并转换为灰度图像
img = imread('image.jpg');
img_gray = rgb2gray(img);
% 设置Gabor小波参数
lambda = 8;
theta = 0:45:135;
bw = 1;
gamma = 0.5;
psi = 0;
% 创建Gabor小波滤波器
gaborArray = gabor(lambda,theta,bw,gamma,psi);
% 对图像进行Gabor小波滤波
gaborMag = zeros(size(img_gray,1),size(img_gray,2),40);
for i = 1:40
% 应用第i个Gabor小波滤波器
gaborFilter = gaborArray(i);
img_filtered = imfilter(img_gray,gaborFilter,'symmetric');
% 计算滤波后的能量值
gaborMag(:,:,i) = img_filtered.^2;
end
% 提取40个能量值
gaborEnergy = zeros(40,1);
for i = 1:40
gaborEnergy(i) = sum(sum(gaborMag(:,:,i)));
end
% 显示Gabor小波滤波后的图像
figure;
for i = 1:40
subplot(5,8,i);
imshow(gaborMag(:,:,i),[]);
title(sprintf('Gabor %d',i));
end
```