Error - Error using im2double

Question

Sara Kadam 2023-4-25

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1952914-error-error-using-im2double

编辑： Walter Roberson 2023-4-25

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I implemented the following code for non-overlapping patch and I'm getting this error. What does this mean?

Thank you.

*Code -*

YourImage = im2double('house.jpg');
[m,n] = size(YourImage);
Blocks = cell(m/16,n/16);
counti = 0;
for i = 1:16:m-15
    counti = counti + 1;
    countj = 0;
    for j = 1:16:n-15
        countj = countj + 1;
        Blocks{counti,countj} = YourImage(i:i+15,j:j+15);
    end
end

*Error Message -*

Error using im2double

Expected input number 1, Image, to be one of these types:

double, logical, uint8, uint16, int16, single

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Stephen23 2023-4-25

编辑：Stephen23 2023-4-25

"What does this mean?"

The IM2DOUBLE documentation states that its first input must be an "Input image, specified as a numeric scalar, vector, matrix, or multidimensional array." Instead of providing a numeric image, you have called IM2DOUBLE with some text.

I do not see anything in the IM2DOUBLE documentation to suggest that it accepts text as its first input.

If you are trying to import an image from a file try using an image importing function, e.g. IMREAD:

https://www.mathworks.com/help/matlab/ref/imread.html

https://www.mathworks.com/help/images/read-image-data-into-the-workspace.html

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Answer 1

Image Analyst 2023-4-25

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1952914-error-error-using-im2double#answer_1223094

Your code does not use im2double. And you did not post the entire error message (all the red text). I know because the line number and actual line of code is not included in what you post, and they are in the actual error message. We can't see what you really did So...