MATLAB: Provide the code in which given image find in 600 images in matlab

find image

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   % Save all 600 images name in a sequence manner before doing the operation 
   % names for example im1,im2,im3..or 1,2,3...so on
   %Save the folder of images in the current directory
   %read the given image-assume given image from 600 image folders, say image1.jpg
   image=imread('image1.jpg'); % do this operation
   gray_image=rgb2gray(image);
   path_directory='folder_name'; % 'Folder name' having 600 images
   original_files=dir([path_directory '/*.jpg']); 
   for k=1:length(original_files)
      filename=[path_directory '/' original_files(k).name];
      image_call=imread(filename);
      image_search=rgb2gray(image_call); 
      sub=imsubtract(image_gray,image_search);
      if sub==0
       disp('Given Image found');
       imshow(image_call);
       break;
     end
  end

Related Solutions

MATLAB: I have a folder of .tif images that need to be converted to a different format for downstream analysis

Hi,

I think your input tif files are in single format whereas your output file format which is jpeg doesn't support single format while using imwrite (you can find using help imwrite in the 'fmt' of the file output section)

You can do this instead. either save them in a different file format let us say 'bmp', 'jp2' or 'png'. Else you can do the following thing by converting your input image from single format to unsigned integer 8 (uint8).

% Specify the folder where the files live.
myFolder = '/Users/masonlien/Desktop/PhD/Drone/2020/test';
% Check to make sure that folder actually exists.  Warn user if it doesn't.
if ~isfolder(myFolder)
	errorMessage = sprintf('Error: The following folder does not exist:\n%s\nPlease select another folder.', myFolder);
	uiwait(warndlg(errorMessage));
	myFolder = uigetdir();
end
% Get a list of all files in the folder with the desired file name pattern.
filePattern = fullfile(myFolder, '*.tif'); % Change to whatever pattern you need.
theFiles = dir(filePattern);
numFiles = length(theFiles);
if numFiles == 0
	warningMessage = sprintf('Warning: no TIFF images found in the folder:\n%s', myFolder);
	uiwait(warnuser(warningMessage));
	return;
end
for k = 1 : numFiles
	baseFileName = theFiles(k).name;
	fullFileName = fullfile(myFolder, baseFileName);
	fprintf('Now reading %s (#%d of %d).\n', fullFileName, k, numFiles);
    % such as reading it in as an image array with imread()
    
    % Change made here 
	imageArray = uint8(imread((fullFileName)));
	imshow(imageArray);  % Display image.
	caption = sprintf('%s (#%d of %d)', fullFileName, k, numFiles);
	title(caption, 'FontSize', 14, 'Interpreter', 'none');
	drawnow; % Force display to update immediately.
	% Write it out as a PNG file.
	baseFileName = strrep(lower(baseFileName), '.tif', '.jpg');
	outputFileName = fullfile(myFolder, baseFileName);
	fprintf(1, 'Now writing %s\n', outputFileName);
 	imwrite(imageArray, outputFileName);
end

MATLAB: Compare images in one folder with a single image

Try this code, parts of which I pulled from the FAQ:

% Specify the folder where the reference image file lives.
refFolder = pwd; % 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, 'whatever.png');
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 = pwd; % 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, '*.PNG'); % 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

Adapt as needed. Write back if there are any problems with it.

Remember, the CompareImages() function in there is something you have to write because we don't know how you want to compare the test images to the reference image.

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Related Solutions

MATLAB: I have a folder of .tif images that need to be converted to a different format for downstream analysis

MATLAB: Compare images in one folder with a single image

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