Compare one image to folder which have multiple images

Question

Sneha P 2022-5-15

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1719550-compare-one-image-to-folder-which-have-multiple-images

评论： Image Analyst 2022-5-15

I have a requirement to compare two images..

Input source an be either webcam/ image

compare source - a folder which has 15 images which is an extract from videos .

Code iam executing which i have picked from one FAQ source

% Specify the folder where the reference image file lives.

refFolder = 'C:\Users\Sneha\Desktop\MATLAB\video_extract'; % or wherever, such as 'C:\Users\yourUserName\Documents\My Pictures';

% Check to make sure that folder actually exists. Warn user if it doesn't.

if ~isfolder(refFolder)

errorMessage = sprintf('Error: The following reference folder does not exist:\n%s', refFolder);

uiwait(warndlg(errorMessage));

return;

end

% Read in the reference image.

fullRefImageFileName = fullfile(refFolder, 'find_person2.jpg');

if ~exist(fullRefImageFileName, 'file')

errorMessage = sprintf('Error: The following reference image does not exist:\n%s', fullRefImageFileName);

uiwait(warndlg(errorMessage));

return;

else

refImage = imread(fullRefImageFileName);

end

% Specify the folder where the test image files live.

testFolder = 'C:\Users\Sneha\Desktop\MATLAB\video_extract\'; % or wherever, such as 'C:\Users\yourUserName\Documents\My Pictures';

% Check to make sure that folder actually exists. Warn user if it doesn't.

if ~isfolder(testFolder)

errorMessage = sprintf('Error: The following test image folder does not exist:\n%s', testFolder);

uiwait(warndlg(errorMessage));

return;

end

% Get a list of all files in the folder with the desired file name pattern.

filePattern = fullfile(testFolder, '*.jpg'); % Change to whatever pattern you need.

theFiles = dir(filePattern);

for k = 1 : length(theFiles)

baseFileName = theFiles(k).name;

fullFileName = fullfile(testFolder, baseFileName);

fprintf(1, 'Now reading %s\n', fullFileName);

% Read in test image.

testImage = imread(fullFileName);

imshow(testImage); % Display image.

drawnow; % Force display to update immediately.

% Now do whatever you want with this file name,

% such as comparing the image array with refImage in some function you write.

results = CompareImages(testImage, refImage);

end

results = CompareImages(testImage, refImage); --> This area getting an error

Unrecognized function or variable 'CompareImages'.

results = isequal(testImage, refImage); --> this is simply reading all images rather than comparing the tesimage(folder) and refimage(image given as imput source)

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Image Analyst 2022-5-15

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1719550-compare-one-image-to-folder-which-have-multiple-images#answer_964365

Yes, we talked about this before. You need to write your own CompareImages function. It's not some generic function built in to MATLAB since there are thousands of ways to compare images. You'll just have to program up your own algorithm.