to other content a method and or architecture is provided by the present invention to separately control a skin color reproduction for colors represented by skin tones the present invention differs from conventional methods in that no transforms or color conversions are generally utilized furthermore a separate conventional contour reduction step may be eliminated as a discontinuity free color warping technique of the present invention generally avoids contour artifacts since the color warping technique operates directly upon native chroma samples of individual pixels e g operates with a cb component and a cr component in a ycbcr space and does not in any way depend upon luminance data or surrounding pixels the data processing criteria and complexity of the present invention may be reduced compared with conventional methods the complexity reduction is particularly true for video which is often represented in sub sampled chroma formats e g 4 2 0 and 4 2 2 for consumer and professional video respectively the lack of discontinuities and or highly nonlinear mappings and an avoidance of area segmentation generally makes the present invention extremely stable for video correction in some embodiments a more perceptually uniform mapping may be done in yu u2032 v u2032 space in place of the ycbcr space referring to fig1 a diagram of an example system 100 is shown in accordance with a preferred embodiment of the present invention the system or assembly 100 may be referred to as a tone conversion system the tone conversion system 100 generally comprises a circuit or module 102 and a circuit or module 104 an input signal e g vin may be received by the circuit 102 a luminance signal e g y may be transferred from the circuit.