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contour extraction
原标题:

Example: I as a user I have a database with 20 images but only 3 images obtain scene with sun. I would like to retrieve images from this database only with sun scene. I am using Fourier descriptor for discribing shape and I would like to obtain features vector from the image and this features vector compare and calculation Euclidian distance between real image and reference image database. BUT I would like to obtain features vector for reference sun image. I use segmentation and then I make converting image to binary format. I want to describe only object in image not background. How can I describe coutour image and obtain features vector?

问题回答

What is the "background" here?

alt text

Now think ...

How did you decide? Used colors? Used size? Used position? Used some "sense of beauty"? ...

You can define the background only if you can tell some predicate about the foreground ... and that means knowing something about the object. That knowledge perhaps could be translated to code ...





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