PROCESS FOR TRANSFORMING CHROMINANCE NUMERICAL SIGNALS OF AN ORTHOGONAL SYSTEM OF COLOUR COORDINATES INTO NUMERICAL COLOUR SIGNALS AND INTO SATURATION SIGNALS OF A SYSTEM OF COLOUR COORDINATES AND TRANSFORMATION CIRCUIT

摘要

Method for converting digital chrominance signals of an orthogonal color system A coordinate into digital signals color and the saturation of a color Data of system signals. The Polar Data of system is divided into four quadrants. These quadrants are benchmarks by quadrants marking numbers. By measuring the most significant bit of the chrominance signal is first returned the quadrant concerned and thus the calculation is limited to a single quadrant. For these quadrants processing formulas for the processing of chrominance signals and color saturation signals are in a memory table. Color signals for the four quadrants are obtained by marking numbers quadrant and the values ​​stored in the memory. To reduce the capacity of memory signals will be beforehand was addressing the memory subjected to a lag then when reading the memory again recalibrated.