2020-09-04 23:12:43 -0500 received badge ● Student (source) 2018-04-24 12:41:09 -0500 received badge ● Famous Question (source) 2017-12-16 18:53:19 -0500 received badge ● Notable Question (source) 2017-11-09 10:58:44 -0500 received badge ● Popular Question (source) 2017-03-16 04:25:21 -0500 commented answer How to define the “lower” and “upper” range of a color? @berak, thanks again. 2017-03-16 04:25:00 -0500 received badge ● Scholar (source) 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.