1. A color converter and enhancer comprising: an input stream of incomplete pixels each having a red (R), a green (G), or a blue (B) value, but each incomplete pixel not having all three R, G, B values;
a first multi-line buffer, receiving a first number of multiple lines of the incomplete pixels, the first number being less than a number of lines in a frame;
a luminance generator, receiving R, G, and B values from the first multi-line buffer, for generating preliminary luminance values;
a second multi-line buffer, receiving a second number of multiple lines of the preliminary luminance values, the second number being less than a number of lines in a frame and the second number being not larger than the first number;
an enhancer, receiving the preliminary luminance values from the second multi-line buffer, for adjusting the preliminary luminance values to generate enhanced luminance values;
a third multi-line buffer, receiving a third number of multiple lines of the enhanced luminance values, the third number being less than a number of lines in a frame and the third number being not larger than the second number; and
a chrominance generator, receiving the enhanced luminance values from the third multi-line buffer and receiving some of the incomplete pixels from the first multi-line buffer, for generating chrominance values using the enhanced luminance values and some of the incomplete pixels,
whereby enhanced luminance values are generated and used for chrominance calculation.
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