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Asked by Angel
on 28 Jun 2013

The matlab code has to be able to look through an entire image and decide the average amount of objects that fall within a "trapezoid stamp" of a specified area given calibration specifications. How would I get started? I got a counter almost working for the whole image, now I just need that counter to work like the description given.

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## 4 Comments

## Matt Kindig

Direct link to this comment:http://www.mathworks.com/matlabcentral/answers/80597#comment_157506

Can you post an illustration of what you are trying to do? How is the trapezoid stamp defined?

## Image Analyst

Direct link to this comment:http://www.mathworks.com/matlabcentral/answers/80597#comment_157517

Is this homework? Did your instructor give you any theory to get started? Can the trapezoids be at any arbitrary angle? If you put a bunch of puzzle pieces on the table and corral them with a string then mask that with a trapezoid, you'll have a count of objects that completely fit inside the trapezoid. If you do it again, with the pieces in different orientations, you'll get a different count. Is that what you want to do?

## Angel

Direct link to this comment:http://www.mathworks.com/matlabcentral/answers/80597#comment_158855

There is a specific trapezoid that is wanted but for a general help, this does not matter as much. Yes, this is what I want. Any help is appreciated.

## Matt Kindig

Direct link to this comment:http://www.mathworks.com/matlabcentral/answers/80597#comment_159049

Again, could you post an image illustrating what you are trying to do? It is still not really clear what your goal is.