I need to find red,yellow,orange colors only in an image .how to find repeated pixel values for those colors in an and RGB image.

I need to find red,yellow,orange colors only in an image .how to find repeated pixel values for those colors in an and RGB image.

[Walter Roberson]

Define "red".

Seriously, we cannot answer until we know what you mean, exactly, by the names of those colors. Is 246 17 3 "red"? Is 2 0 0 red?

Answer 1

[Takuji Fukumoto]

This is nice tool to understand the intensity in RGB color space

imtool

You should specify the threshold level from the image. If it's difficult to do so in RGB color space, I recommend you to use HSV color space. This application helps you well.

colorThresholder