If my understanding of camera sensors is correct, they typically capture the intensity of a specific color after it passes through a Bayer filter, so that the RAW output of the sensor is series of readings for red, green, and blue photosites. Pink, then, is said to be less saturated than red because in a pure red color, the red completely dominates other color components, and hues of grey are said to be de-saturated because all the color components contribute equally to the hue.Īlthough saturation is clearly something that can be manipulated during image-processing, several questions here also refer to saturation as being an attribute of camera sensors, lenses, and so on. Image saturation is a concept used to describe the purity or intensity of color in an image, such that an image with very little saturation approaches a black and white image.