Opencv color recognition

Question

Using opencv, can detection of a specific color (between a certain range of rgb values) be performed in an image or video frame?

Answer 1

You need to define the treshold in RGB and process the pixels in the image (hopefully not the whole image, but a smaller area of ​​interest, possibly a moving foreground shape) that are suitable for definition. Something similar to what was discussed here .

I understand that you know the color (or colors) that you want to determine a priori.

Hope this helps.

Answer 2

, HSV "InRangeS". :

https://github.com/abidrahmank/OpenCV-Python/blob/master/Other_Examples/multi_color_two_object.py

, .

Answer 3

Yes - but it's easier in the HSV color space. Tutorials here