edit-hidden objects

I have uploaded an image ,please tell is it possible to find the shape of hidden object,or is it possible to draw boundaries for those images,by different colours for each image

http://imgur.com/uN3Ta

Answer 1

[Walter Roberson]

No. We have no way to prove that the bottle that is further back does not have a handle cut in to it or coming out of it.

[kash]

walter is it possible to draw the boundaries of two images

[Walter Roberson]

You can draw the boundaries of two non-overlapping objects in an image.

If the objects are overlapping, then you _might_ be able to figure out the *visible* edge of the top image, by using something like a watershed algorithm.

In order to have any hope of drawing the boundary of a hidden portion of an object, you need a bunch of restrictions on what that object can look like. In a case such you have presented, where all we are given is that there _are_ two objects, there is no way to draw the boundary of the hidden portion of the object.

[kash]

ok walter is it possible to draw boundaries of the objects,without considering hidden portion,just i want to indicate there are 2 objects drawing boundaries by 2 colours differentiating them

[Walter Roberson]

If the objects are overlapping, then you _might_ be able to figure out the *visible* edge of the top image, by using something like a watershed algorithm.

[kash]

walter is it possibe to figure out visible edge of background image

which is hidden(i mean only the visible region)

[Walter Roberson]

If watershed works for you, it will create a separation line. You use the separation line as the boundary for both the fully visible and partly hidden areas.

[kash]

Thanks walter can u tell were i can find codes forwater shed algorithm

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/?term=tag%3A%22watershed%22

[kash]

Walter is there any demo for it

[kash]

walter were i can get code for separation line as a bounday both the fully visible and partly hidden areas as u said using water shed algorithm

[Walter Roberson]

11 seconds of searching:

http://www.mathworks.com/products/image/demos.html?file=/products/demos/shipping/images/ipexwatershed.html