OpenCV 3 Computer Vision Application Programming Cookbook - Third Edition

Representing colors with hue, saturation, and brightness

In this chapter, we played with image colors. We used different color spaces and tried to identify image areas of uniform color. The RGB color space was initially considered, and although it is an effective representation for the capture and display of colors in electronic imaging systems, this representation is not very intuitive. Indeed, this is not the way humans think about colors; they most often describe colors in terms of their tint, brightness, or colorfulness (that is, whether it is a vivid or pastel color). A color space based on the concept of hue, saturation, and brightness has then been introduced to help users to specify the colors using properties that are more intuitive to ...