1. UniGMA - is similar in nature to CARISMA, with the difference that it doesnít start with an overall lightness compression, that it uses different criteria for determining the mapping at the original mediumís primary and secondary hues.

2. LCUSPH - is a simplified version of both UniGMA and CARISMA which uses the same mapping throughout colour space. It first compresses lightness linearly and then maps colours towards the lightness of the cusp on the lightness axis. Finally, this algorithm also has the same hue shift as CARISMA.