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converting tiff file to grey scale using im2gray error at position 1

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Lotte van Dijk
Lotte van Dijk 2021-4-26
评论： Lotte van Dijk 2021-4-26
I try to convert my tiff files to grey scale images. I read that I should use im2grey. But I get an error that there is an invaling argument at position 1 and that the value must be numeric. What does this mean?

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回答（1 个）

Walter Roberson
Walter Roberson 2021-4-26
Ran in:
You have to read the data in first; you cannot pass in a file name
img = imread('flamingos.jpg');
grimg = im2gray(img);
imshow(grimg)
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Walter Roberson
Walter Roberson 2021-4-26
Example:
for K = 1 : 5
filename = sprintf('img%05d.tiff', K);
outputs(:,:,K) = im2gray(imread(filename));
end

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