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2017-03-16 04:25:21 -0500 commented answer How to define the “lower” and “upper” range of a color?

@berak, thanks again.

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2017-03-16 03:40:23 -0500 commented answer How to define the “lower” and “upper” range of a color?

@berak, thank you. could you please also give me samples of green and yellow's lower and upper arrays?

2017-03-16 03:06:52 -0500 commented question How to define the “lower” and “upper” range of a color?

from where can I find the "hsv space" (lower and upper) for all colors?

2017-03-16 02:54:14 -0500 commented question How to define the “lower” and “upper” range of a color?

@berak, thanks. I just want to know what values to put in the arrays. i.e. how do I know between ([0,100,100]) and ([20,255,255]) is red?

2017-03-16 02:45:55 -0500 commented question How to define the “lower” and “upper” range of a color?

@berak, thank you for the comment. "colorspace" is a new concept to me. Do you mean I need to convert the RGB to colorspace?

2017-03-15 22:28:25 -0500 asked a question How to define the “lower” and “upper” range of a color?

Hi, could you please help me with a question defining the range of a certain color?

Learning from the question and answers in the site /31305/why-is-this-simple-mask-not-working/

The lines limiting the red are 2 arrays:

lower = n.array([0,100,100])
upper = n.array([20,255,255])

how are these arrays are formed?

The RGB of red is (255, 0, 0) and its HSV is (0°, 100°, 100°)

How’s the RGB 255,0,0 to be relevant into ([0,100,100]) and ([20,255,255])? (reading it BGR shall be 0,0,255)

Thank you.