MATLAB: How to get rid of these problems fullscreen, browser from a file and efficiency

browserefficientfullscreenguiguideimageimage processingimagesloadloopmaximize figurepauseslideshowstartstop

Hi;

I am designing slideshow interface with guide. But I have some problems ;

1) How to make fullscreen guide ( I've tried Yair's metod and it did not work ) and ( set(gcf, 'units','norm','Outerposition',[0 0 1 1]) as well.
2) For the slideshow, I have to select a file which contains images. But I can open just specific file that I declared (***** myFolder = 'C:\Users\Atacan\2015-09-27'; ****** line 122). I need to access other files. I could not find way to do this.
3) When I run this code can not detect my commands(bush and toggle buttons) immediately. Is there any advice to make it more efficient or better way to this.( I have i7 processor and 16 gb ram)

If you find any problem please let me know.

Notes about the code;

If there is no image or end of the slideshow screen is become black. Black.jpg for this reason.

If the show end, time will be 0:0:0.

Fullscreen problem

Best Answer

Answer of 2nd question

myFolder = PathName;
filePattern = fullfile(myFolder, '*.jpg');
jpegFiles = dir(filePattern);
baseFileName = jpegFiles(k).name;
fullFileName = fullfile(myFolder, baseFileName);
imageArray = imread(fullFileName);
imshow(imageArray);

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: Changing pictures

Define "automatically." Do you mean in a for loop? See the FAQ: http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F so you'll know how to do stuff like this:

filePattern = fullfile(myFolder, '*.jpg');
jpegFiles = dir(filePattern);
for k = 1:length(jpegFiles)
  baseFileName = jpegFiles(k).name;
  fullFileName = fullfile(myFolder, baseFileName);
  fprintf(1, 'Now reading %s\n', fullFileName);
  imageArray = imread(fullFileName);
  imshow(imageArray);  % Display image.
  drawnow; % Force display to update immediately.
    promptMessage = sprintf('Do you want to Continue or Cancel?');
    button = questdlg(promptMessage, 'Continue', 'Continue', 'Cancel', 'Continue');
    if strcmpi(button, 'Cancel')
    break;
    end
end

Best Answer

Related Solutions

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

MATLAB: Changing pictures

Related Question