Selective color correction for arbitrary hues

This paper proposes new selective color correction methods for digital color images, which do not require masking of the correction area. The most commonly employed method can only effectively correct pixels containing one of six specific hues (R.G.B.C.M.Y). In response to this situation, the authors have developed two new selective color correction methods, the HSV method and the RGB subtractive method, both of which can be applied to arbitrary hues within a adjustable hue range. In actual testing, the methods have produced excellent results, and may be expected to make it easier for users to retouch photograph images