It's like regular image analysis except instead of using brightness for the basic contrast method, you can use the hue, saturation, and intensity breakdown of the color image. In this system hue is the basic color, while saturation is the amount the color is diluted, and intensity is whether it is diluted by white- gray- black. Using this method, your robot would grab anything blue - violet in hue, avoiding green, and the sorter would grab anything orange-red. Tim > -----Original Message----- > From: pbs [mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of From HK > Sent: Friday, January 13, 2017 4:31 PM > To: Pacific Bulb Society > Subject: Re: [pbs] Could Saffron Help Vermont Farmers? > > Hue base image processing? Wow. >