how to remove this error please some one help me

Error using imread (line 349)
File "face_original" does not exist.

Error in face_detection (line 9)
face_original = imread('face_original');

This is the code:

face_original = imread('face_original');
size_img = size(face_original);
r = 1; g = 2; b = 3;
y = 1; u = 2; v = 3;

Answer 1

[Walter Roberson]

Are you certain that the file name is not face_original.jpg ?

[Image Analyst]

I hope not. I hope it would be face_original.png. Using lossy compressed images is not good for image analysis, though I realize people do it all the time. Regardless, adding the extension and using exist() before calling imread() makes for more robust code.

% Get the full filename, with path prepended.
fullFileName = fullfile(folder, baseFileName);
% Check if file exists.
if ~exist(fullFileName, 'file')
  % File doesn't exist -- didn't find it there.  Check the search path for it.
  fullFileNameOnSearchPath = baseFileName; % No path this time.
  if ~exist(fullFileNameOnSearchPath, 'file')
    % Still didn't find it.  Alert user.
    errorMessage = sprintf('Error: %s does not exist in the search path folders.', fullFileName);
    uiwait(warndlg(errorMessage));
    return;
  end
end