MATLAB: Video with horizontal lines

video with lines and text

I have 2000 TIF images and I want to create a video with these images. I want to draw three horizontal lines and write some text that appears in all the frames of the video. Any help on how to do this?

Best Answer

Look for VideoWriter

Related Solutions

MATLAB: Joining jpg files to make a video

I use MATLAB2012a, you can try if this function works for you. The input arguments are: the path to the images (vide_dir), extention of the images (extension), path and name of the video with extension (aviname), and the frame rate (fps)

For example: make_video('/home/user/myImages/','jpg','myvideo.avi',5)

function make_video(video_dirs,extension,aviname,fps)
      resnames=dir(fullfile(video_dirs,['*.' extension]));
      aviobj=VideoWriter(aviname);
      aviobj.FrameRate=fps;
      open(aviobj);
      for i=1:length(resnames)
          img=imread(fullfile(video_dirs,resnames(i).name));
          F=im2frame(img);
          if sum(F.cdata(:))==0
              error('black');
          end
          writeVideo(aviobj,F);
      end
      close(aviobj);
end

MATLAB: Use images to create video, script to read through hundreds of folders to do it

Try this code: http://www.mathworks.com/matlabcentral/answers/84951#answer_94506

And here's a demo to show you how to recurse into subfolders:

% Start with a folder and get a list of all subfolders.
% Finds and prints names of all PNG, JPG, and TIF images in 
% that folder and all of its subfolders.
clc;    % Clear the command window.
workspace;  % Make sure the workspace panel is showing.
format longg;
format compact;
% Define a starting folder.
start_path = fullfile(matlabroot, '\toolbox\images\imdemos');
% Ask user to confirm or change.
topLevelFolder = uigetdir(start_path);
if topLevelFolder == 0
  return;
end
% Get list of all subfolders.
allSubFolders = genpath(topLevelFolder);
% Parse into a cell array.
remain = allSubFolders;
listOfFolderNames = {};
while true
  [singleSubFolder, remain] = strtok(remain, ';');
  if isempty(singleSubFolder)
    break;
  end
  listOfFolderNames = [listOfFolderNames singleSubFolder];
end
numberOfFolders = length(listOfFolderNames)
% Process all image files in those folders.
for k = 1 : numberOfFolders
  % Get this folder and print it out.
  thisFolder = listOfFolderNames{k};
  fprintf('Processing folder %s\n', thisFolder);
  
  % Get PNG files.
  filePattern = sprintf('%s/*.png', thisFolder);
  baseFileNames = dir(filePattern);
  % Add on TIF files.
  filePattern = sprintf('%s/*.tif', thisFolder);
  baseFileNames = [baseFileNames; dir(filePattern)];
  % Add on JPG files.
  filePattern = sprintf('%s/*.jpg', thisFolder);
  baseFileNames = [baseFileNames; dir(filePattern)];
  numberOfImageFiles = length(baseFileNames);
  % Now we have a list of all files in this folder.
  
  if numberOfImageFiles >= 1
    % Go through all those image files.
    for f = 1 : numberOfImageFiles
      fullFileName = fullfile(thisFolder, baseFileNames(f).name);
      fprintf('     Processing image file %s\n', fullFileName);
    end
  else
    fprintf('     Folder %s has no image files in it.\n', thisFolder);
  end
end

Best Answer

Related Solutions

MATLAB: Joining jpg files to make a video

MATLAB: Use images to create video, script to read through hundreds of folders to do it

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