How to isolate colour Green from the Picture.

Question

The picture is: enter image description here

How do I isolate the green chips? The result must be in black and white. It doesn't have to be perfect.

To isolate the blue ones I used:

I=imread('Picture.png'); A=I(:,:,3); B=(A>230) figure imshow (B)

How do I isolate i)Green ii)Yellow

Is it possible to convert from RGB to HSV? That would make things much more robust, I suppose — Hagen von Eitzen, Oct 27 '14 at 15:39

score 0 · Answer 1 · answered Oct 27 '14 at 15:15

Colours are represented by their RGB values. I don't know much about Matlab, but I suppose you could simply search online for the RGB values of different shades of green and yellow and create a numerical range of colours that match as green or yellow.

There are softwares where you can upload your picture, click on a series of pixels and get an approx. range of RGB values for them.

How to isolate colour Green from the Picture.

1 Answers1