Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I need to detect all the red pixels in an image using Java. What ‘s the best way to do this?
Only supposing a pixel is red when the Red RGB-value is > 200 isn’t good enough (see this table).
So is there a better way to do this? Or is there some red-color-rgb algorithm?
Take a look at YCrCb color space.
Simple algorithm: convert your RGB image to YCrCb, extract red channel and make a threshold.