As i know ,please read http://answers.opencv.org/question/13715/how-to-use-inrange-at-different-color-space-and/ I must find the min & max bounds of the color space. So how to find min & max bounds of the LAB , HLS,HSV Color space?
Convert the image into the color spaces you want, split them into their channels and then simply find the min/max value by using the minMaxLoc function.
If i have a lot of pictures and using this way , some parameters maybe out out range.for example,in pictures one, i find max & min RGB are all 20,200 and use this value to set parameters. But in picture two, max & min value become to 25,180, then maybe happen error.I think opencv should bulidin constants value:)
Asked: 2013-05-23 08:36:57 -0600
Seen: 2,976 times
Last updated: May 23 '13
the docs for cvtColor have a lot about that
mm,thanks:)