image corner and objects relationship

I have 2 object and they are different color.Object1's corner and object2's corner should hold the different matrix. How could i do that?

Answer 1

[Image Analyst]

Get the centroids

[rows, columns] = size(binaryImage);
[labeledImage, numBlobs] = bwlabel(binaryImage);
props = regionprops(labeledImage, 'Centroid')

Then go through each centroid finding out which of the 4 corners of the image is closest to your blob. Untested code:

for k = 1 : numBlobs
    thisX = props(k).Centroid(1); % x value.
    thisY = props(k).Centroid(2); % y value.
    % Find distance to lower left corner
    distanceLL = sqrt((thisX-1)^2 + (thisY-rows)^2);
    % Find distance to lower right corner
    distanceLR = sqrt((thisX-columns)^2 + (thisY-rows)^2);
    % Find distance to upper left corner
    distanceUL = sqrt((thisX-1)^2 + (thisY-1)^2);
    % Find distance to upper right corner
    distanceUR = sqrt((thisX-columns)^2 + (thisY-1)^2);
    if distanceLL < distanceUL && distanceLL < distanceUR && distanceLL < distanceLR
        % It's closest to the lower left corner.
    else if..............etc.
    end
end

[Image Analyst]

Note: was an answer to the original question, which has since been replaced.

Answer 2

[CIHAT ZOROGLU]

Thanks for your help but What i want to find this, for example we have 3 objects in image.Object1's corner points hold different array, object 2's corner points hold different array etc..

[Image Analyst]

You've accepted your own answer so I assume you figured it out.

Attaching a figure, screenshot, or diagram would have let me attempt the correct code instead of all that wasted code I wrote. http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

[CIHAT ZOROGLU]

No, i accept mistakenly

[Image Analyst]

I still don't know what to say. Give us something else to go on. Did you read the link I gave you?

Answer 3

[CIHAT ZOROGLU]

Here. I have 2 object and they are different color. Object1's corner and object2's corner should hold the different matrix. How could i do that?

[Image Analyst]

See my shape recognition demos, attached.