I would isolate an object(in my case, a tuna) from the background. The problem is that they are very similar by color. Here is an example of image:
For isolate, i mean, create a countour or change the color of the tuna, or something that isolate my object, because after i would make an object detection based on shape.
There are any elaboration, distorsion or technique that can i apply to my image to do that? Is it possible?
If not, what object detection tecnique should i use?
Thank you!!