Red tracking object- need to store co-ordinates of red object?

Hi ALL, I have been working on red object and tracking program using live webcam. I was able to detect red object through webcam screen. But, i was not able to store the co-ordinate values. I need to store the co-ordinates value as per project requirement. Can anyone help me out in this regard? Thanks in advance. Following is the program for reference; a = imaqhwinfo;

% Capture the video frames using the videoinput function % You have to replace the resolution & your installed adaptor name. vid = videoinput('winvideo',1);

% Set the properties of the video object set(vid, 'FramesPerTrigger', Inf); set(vid, 'ReturnedColorspace', 'rgb') vid.FrameGrabInterval = 5;

%start the video aquisition here start(vid)

%counter=1;

% Set a loop that stop after 100 frames of aquisition while(vid.FramesAcquired<=200)

    % Get the snapshot of the current frame
    data = getsnapshot(vid);

    % Now to track red objects in real time
    % we have to subtract the red component 
    % from the grayscale image to extract the red components in the image.
    diff_im = imsubtract(data(:,:,1), rgb2gray(data));
    %Use a median filter to filter out noise
    diff_im = medfilt2(diff_im, [3 3]);
    % Convert the resulting grayscale image into a binary image.
    diff_im = im2bw(diff_im,0.18);

    % Remove all those pixels less than 300px
    diff_im = bwareaopen(diff_im,300);

    % Label all the connected components in the image.
    bw = bwlabel(diff_im, 8);

    % Here we do the image blob analysis.
    % We get a set of properties for each labeled region.
    stats = regionprops(bw, 'BoundingBox', 'Centroid');

    % Display the image
    imshow(data)

    hold on

    %This is a loop to bound the red objects in a rectangular box.
    for object = 1:length(stats)
        counter=counter+1;
        bb = stats(object).BoundingBox;
        bc = stats(object).Centroid;
        rectangle('Position',bb,'EdgeColor','r','LineWidth',2)
        plot(bc(1),bc(2), '-m+')
        a=text(bc(1)+15,bc(2), strcat('X: ', num2str(round(bc(1))), ' Y: ', num2str(round(bc(2)))));
        %b=stract('X',strcat('X: ', num2str(round(bc(1)))), ' Y: ', num2str(round(bc(2))));
        %A(counter)=a;
        set(a, 'FontName', 'Arial', 'FontWeight', 'bold', 'FontSize', 12, 'Color', 'yellow');
    end

    hold off
end
% Both the loops end here.

% Stop the video aquisition. stop(vid);

% Flush all the image data stored in the memory buffer. flushdata(vid);

% Clear all variables clear all sprintf('%s','That was all about Image tracking, Guess that was pretty easy :) ')

[Image Analyst]

http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup

Answer 1

[pourya]

Hello . I am an Iranian student. I've run the program detection red color. But, I do not know how to take pictures inside the box containing the red. Can you help me? Thank you.

[CHANDAN Nagaraja]

What picture ..?? Sorry I don't understand your question...11

[Image Analyst]

pourya, you should have started your own question, and then I would have referred you to my File Exchange, or to this from someone else in the File Exchange