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How to convert image to array and save it in a text file?

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Ali Purse
Ali Purse 2018-10-18
回答： Image Analyst 2018-10-18
I want to save an image's array to a text file in order to show it again.
But I don't know how to store it in right conditions.
I'm using the following code:
I = imread('image.jpg');
image=mat2gray(I);
imshow(image);
FID = fopen('FileName.txt', 'w');
if FID == -1, error('Cannot create file.'); end
fprintf(FID, '%f \n', image);
fclose(FID);

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采纳的回答

madhan ravi
madhan ravi 2018-10-18
dlmwrite('FileName.txt',image)

更多回答（1 个）

Image Analyst
Image Analyst 2018-10-18
Do not use image as the name of your variable because it's the name of a built in function.
See attached demo that will take a color image and write a text file in the form
r, g, b, x, y
One row for every pixel.

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