MATLAB: How to draw the bounding box around the apple

color segmentationfruitfruits recognitionImage Processing Toolbox

I am new in Matlab, my task is to draw the bounding box around the apple, plz help me in this task.

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Very easy. Just use color segmentation. I have several demos in my File Exchange:

http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862

If the apple has irregularities on the edges after segmentation, you can use activecontour() as shown in my attached demo to smooth the outline. Or else you can blur the color channel image before you threshold it.

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MATLAB: Edit drawing bounding box

See my image segmentation tutorial http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862 where I find bright objects and get their bounding boxes.

MATLAB: Bounding box around image

Try this:

% Random plot
plot( (1:10), randi(10,1,10), 'LineWidth', 2)
grid on; % Optional
% Create new axes on top of the existing plot.
axes('Position',[.1 .6 .5 .3])
% Load and show image
imshow('coins.png')
axis('on', 'image');  % This is the KEY LINE OF CODE!

Also see this link to learn how to format your code. http://www.mathworks.com/matlabcentral/answers/13205#answer_18099

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MATLAB: Edit drawing bounding box

MATLAB: Bounding box around image

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