unable to perform assignment error in im2col

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MatlabEnthusiast
MatlabEnthusiast 2021-1-4
评论： MatlabEnthusiast 2021-1-4
Hello, I think am making a basic error somewhere but I can not figure it out yet. How best can I achieve this, or what type of image is im2col expecting here? I tried indexed version to no avail.
Here is the minimal code that reproduces the error
im = imread('Image.jpg');
im = im2double(im);
im2col(im, [8 8], 'distinct');
where Image.jpg is of type uint8.
the error i get:
Unable to perform assignment because the size of the left side is 420-by-560 and the
size of the right side is 420-by-560-by-3.
Error in im2col (line 63)
aPad(1:size(a,1),1:size(a,2)) = a;
Thank you so much

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采纳的回答

Walter Roberson
Walter Roberson 2021-1-4
https://www.mathworks.com/help/images/ref/im2col.html#d122e88473
A
Image, specified as a 2-D grayscale image, 2-D binary image, or 2-D indexed image.

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