Abstract: A computerized method of detecting regions of interest in a digital image optimizes and adapts a computer aided scheme for detecting regions of interest in images. The optimization is based on global image characteristics. For each image in a database of images having known regions of interest, global image features are measured and an image characteristic index is established based on these global image features. All the images in the database are divided into a number of image groups based on the image characteristic index of each image in the database and the CAD scheme is optimized for each image group. Once the CAD scheme is optimized, to process a digital image, an image characteristics based classification criteria is established for that image, and then global image features of the digitized image are determined. The digitized image is then assigned an image characteristics rating based on the determined global image features, and the image is assigned to an image group based on the image rating.

Abstract: An arrangement for increasing saturation of colors in a color television signal while maintaining fleshtone colors at a same level, the arrangement including a circuit for detecting color signals in a color television signal, circuitry for discerning fleshtone color signals in the detected color signals, a circuit for measuring signal levels of the detected color signals other than the discerned fleshtone color signals, and a circuit for increasing the signal levels of the detected color signals other than the discerned fleshtone color signals in dependence on at least one of the measured signal levels.