matlab实现sobel边缘检测和霍夫变换找直线

可以的，以下是matlab代码实现sobel边缘检测和霍夫变换找直线：

sobel边缘检测代码：

img=imread('test.jpg');
grayImg=rgb2gray(img);
sobelImg=edge(grayImg,'sobel');
imshow(sobelImg);

霍夫变换找直线代码：

[H,theta,rho] = hough(sobelImg);

peaks = houghpeaks(H,5);

lines = houghlines(sobelImg,theta,rho,peaks,'FillGap',5,'MinLength',7);

figure, imshow(img), hold on

max_len = 0;

for k = 1:length(lines)

xy = [lines(k).point1; lines(k).point2];

plot(xy(:,1),xy(:,2),'LineWidth',2,'Color','green');

end