如何在matlab上删除图像的阴影？

Question

正如您在图像中看到的那样，我使用Otsu方法隔离对象，但阴影会使结果变为空洞。如何隔离没有阴影的物体？

Answer 1

I = imread('YgmAf.jpg');  % your original image
imagesc(I)

I=rgb2hsv(I);
I1=I(:,:,2);   % change to hsv and select the channel with most clear contrast between object and shadow

thresholded = I1 > 0.23; %% Threshold to isolate lungs
thresholded = bwareaopen(thresholded,100);  % remove too small pixels
I2=thresholded.*I1;
I3=edge(I2,'canny',graythresh(I2));  % ostu method
I3 = imfill(I3,'hole');
figure,imagesc(I3)  %object binary image

结果图片：