Hi, I want to know how to extract shape feature like aspect ratio, circularity, perimeter, etc.from feather image, can anyone send matlab code for that.

Hi, Im want to recognise feather by inage for that i want to know how to extract the shape features from the image by using matlab and how to classify the different class by kNN

Answer 1

[Image Analyst]

What are your features and what are your classes? Maybe features are area, mean LAB color, perimeter, aspect ratio, etc. And your classes are "feather type #1" and feather type #2"???

Anyway, see my Image Segmentation Tutorial in my File Exchange

And see my attached demo on K Nearest Neighbor classification.