error with my code
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hi all ... I've encountered an error with this code .. especially with the imread part ... pls clear this ..
vid = videoinput('winvideo', 1 , 'RGB24_320x240');
preview(vid);
for i= 1:3
frame1=getsnapshot(vid);
imwrite(frame1,sprintf('image%d.jpg',i));
fname=save(‘C:\MATLAB7\work\NewFolder1’);
I = imread('image%d.jpg');
J=rgb2gray(I);
figure,imshow(I),figure,imshow(J);
BW1=edge(J,'sobel');
BW2=edge(J,'canny');
figure,imshow(BW1),figure,imshow(BW2);
pause(1)
end
1 个评论
Andreas Goser
2012-1-30
You help yourself by including the error message...
采纳的回答
David Young
2012-1-30
Have a look at the names of the files: you'll find that there isn't one called 'image%d.jpg', so imread cannot find such a file. (The files you create have names like image1.jpg, image2.jpg, ...)
Maybe you want to read back in the image that you have just written. If so, this should do it:
I = imread(sprintf('image%d.jpg',i));
However, if that is what you need, it will be much faster to use
I = frame1;
You do not need to write the images to disk at all, unless you want to refer to them later.
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