Sending commands after detecting red colour in a captured image.

I've found a program online that is able to detect red through live image and i was able to stop the live video after a certain amount of time. However i would like to send the data for the red that is captured for further commands. Would using 'stats' in the code below be able to send the captured red data for further commands?

vid = videoinput('winvideos', 1);

set(vid, 'FramesPerTrigger', Inf);

set(vid, 'ReturnedColorSpace', 'rgb');

vid.FrameGrabInterval = 1;

start(vid)

while (vid.FramesAcquired<=10)

      data = getsnapshot(vid);
      diff_im = imsubtract(data(:, :, 1 ), rgb2gray(data));
      diff_im = medfilt2(diff_im, [3 3]);
      diff_im = im2bw(diff_im, 0.18);
      diff_im = bwareaopen(diff_im, 300);
      bw = bwlabel(diff_im, 8);
      stats = regionprops(bw,'BoundingBox', 'Centroid');
      imshow(data)
      hold on
      for object = 1:length(stats)
          bb = stats(object).BoundingBox;
          bc = stats(object).Centroid;
          rectangle('Position', bb, 'EdgeColor', 'r', 'LineWidth', 2)
          plot(bc(1)+15, bc(2), '-m+')

      end

      hold off
  end
  stop(vid);
  flushdata(vid);
  clear all

[Akash Chokshi]

Which package did you download for the code?

[Coco]

I am using the package for 2014.

Answer 1

[Image Analyst]

Yes, it would. The variable "stats" is a structure array that contains all the measurements you specified, and you can send that to any other function you want, or use it in the same function.

[Coco]

Would the variable "stats" also be able to send the data for red not being detected?

[Image Analyst]

You got stats by measuring an image you thresholded. That image is the difference between the red channel and a weighted average of the red, green, and blue channel. Not sure what that difference means exactly but whatever it is, stats will have information about it. Note that it is not strictly all about the red image since you're subtracting an image that is a weighted sum of all the channels, not just the red channel. What you did is not really a good algorithm for finding red. If you want to find red in a video, just modify my attached demo where I find and track green blobs.