MATLAB: What the error in this code..

clickginput

      N = 7;
     for m=1:N
    fname(m,:)=files(m+7,:);
    rgb = imread(fname(m,:));
    imshow(rgb);
    cdata = ginput;
    data(:,:,m) = cdata(1:4,:);

end

For this seven images i want data where i will click.

But when i am executing this code, it shows only cursor on image but not allowing to click.. Why..?

If any mistake then tell me..?

Best Answer

Consider using roipoly()

Alternately, only ginput() one value at a time, and text() a '+' into place at the returned coordinates before going on to the next.

Related Solutions

MATLAB: How to select different data points in different images in a loop

I don't think a zeropad approach would be optimal, the main problem is that your vector can increase size every time as the same time as your inputs can be smaller. To solve this you can use a cell array which can hold different size vectors without problem. This code solves your problem:

clear 
clc
close all
% Read images in order from 1 to 925.  
% Files are in the "myFolder" directory.
imageFolder = 'D:\Research File\September 26\C001H001S0001';
i           = cell(925,1);
j           = cell(925,1)
for k = 1:925
  tifFilename = sprintf('C001H001S0001000%03d.tif', k);
  fullFileName = fullfile(imageFolder, tifFilename);
  if exist(fullFileName, 'file')
    imageData = imread(fullFileName);
    Pic=imageData/64;
  else
    warningMessage = sprintf('Warning: image file does not exist:\n%s', fullFileName);
    uiwait(warndlg(warningMessage));
  end
  
  image(Pic);
  colormap(bone);
  xlabel('$x$','fontsize',24,'interpreter','latex');
  ylabel('$y$','fontsize',24,'interpreter','latex');
  
        
    [i{k},j{k}]=getpts;
   
end

MATLAB: Issues concerning ginput() and true image size

Instead of all that, why can't you simply do this

[x,y] = ginput(4);
mask = poly2mask(x, y, rowsInImage, columnsInImage);

Best Answer

Related Solutions

MATLAB: How to select different data points in different images in a loop

MATLAB: Issues concerning ginput() and true image size

Related Question