how to pick a particular color in a image?

how to select a specific object in a image?

[Walter Roberson]

What information are you given? Are you given a RGB triple, or are you given a color name such as "venetian blue" ?

[azar]

i want to pick the leaf green color

Answer 1

[Walter Roberson]

http://www.mathworks.co.uk/matlabcentral/answers/104928-comparing-leaf-color-to-a-standard-shades-of-green

Answer 2

[Image Analyst]

A variety of ways are shown in the color segmentation demos in my File Exchange: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862. Post your image if you want more advice.