How to extract the statistical feature of fish ?

Hi, I am trying to extract the statistical feature of fish, for example the length of fins, length from eye to fin etc. Is there any particular method for finding the statistical features? or we have to detect each part like eye and fin? please help.

[KSSV]

Any pictorial example? There are lot of methods...

[Hridya PI]

[Hridya PI]

here is some sample images

[Hridya PI]

[Image Analyst]

OK, good luck. You'll probably want to take the images where the fish are perpendicular to the optic axis, if you have a choice.

[Hridya PI]

Ok

Answer 1

[KSSV]

Read about imdistline, regionprops.

[Hridya PI]

Ok. Thank you. Let me try

Answer 2

[Image Analyst]

See my Image Segmentation Tutorial https://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862&sort=downloads_desc

[Hridya PI]

thank you for your support. I think some of my images need enhancement.