Detect colour ratio on ROIs individually

Python
1

Red area detection
Red area detection1664×2752 183 KB

Hello boys and girls,

I have a study on selecting 4 ROIs and calculating the red colour ratio on an object.
I build a process flow in the attached JPEG file.
I’m a noob python and opencv user.

Is there anyone who can help me about my study?

2

Dear all,

I’ve completed the study by myself.
Anyone who needs it, I’ll be happy to share. Just please let me know.