read md5 hash from image in matlab

To read the MD5 hash from an image in MATLAB, first, you need to calculate the MD5 hash using a hashing algorithm. You can use the built-in 'md5' function in MATLAB to calculate this hash. Here's an example code block that shows how to read the MD5 hash from an image in MATLAB:

main.m
% Define image file name
imageFile = 'test_image.jpg';

% Read image using imread
im = imread(imageFile);

% Calculate MD5 hash of the image file
hash = DataHash(imageFile,'MD5');

% Print the MD5 hash value
disp(['MD5 Hash of ', imageFile, ' : ', hash]);
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The DataHash function is used to calculate the MD5 hash value of the image file. The first argument to the function is the filename, and the second argument is the hashing algorithm ('MD5' in this case).

Once the hash is calculated, it is stored in the hash variable, which is then printed to the console using the disp function.

Note: The DataHash function needs to be downloaded and added to your MATLAB path before using it. This function can be downloaded from the MATLAB File Exchange.