How can I identify the region where the ferret is through color in the image?

Here's the picture.

[DGM]

Edited to include the actual picture.

I still don't think it's answerable. Given that the image looks like it's part of what used to be a JPG, and the question asks about color-based segmentation, I'm suspecting that there isn't even enough of the image present to do the job even if we knew what the specific goals actually were.

Answer 1

[Image Analyst]

Use the Color Thresholder app on the Apps tab of the tool ribbon.

Also see color segmentation apps in my Image Segmentation Tutorial in my File Exchange:

Image Analyst's File Exchange

It's a generic, general purpose demo of how to threshold an image to find blobs, and then measure things about the blobs, and extract certain blobs based on their areas or diameters.