i want to identify greenness in plant using image segmentation

I have done already identify greenness with normalized methods (ExG, ExGR, CIVE) and Otsu methods. I want to know which method is better to identify greenness by comparing two of these.

which identify clear greenness in plant

help me for code

Answer 1

[Image Analyst]

First of all, you need to snap images with a standard in there, such as the X-rite color checker chart

I never heard of those acronyms.

Otsu thresholding is not relevant here, unless it works to separate your leaves from background (like a uniform white or black background). Attach a few of your images.

You cannot compare greenness in different images unless you have a standard. You cannot simply use rgb2lab() and look at the b channel. That's what novices who are not trained in color science do. You must calibrate.

[N/A]

@Image analyst can you please share the extractNLargebloobs() for skin filteration??

[Image Analyst]

To extract the N largest blobs from a binary image:

largestNBlobs = bwareafilt(binaryImage, N);