SE_YIQ_Data

The SEDRIS Data Representation Model APPENDIX C - Types SE_YIQ_Data

/*
 * STRUCT: SE_YIQ_Data
 *
 *   This data type is used for YIQ colour model's data, which is a
 *   recoding of RGB for transmission efficiency and for downward
 *   compatibility with black-and-white television.
 *
 *   YIQ SUPPORT NOTE:  Support for the YIQ colour model is provided as a
 *     convenience, but it is provided in separate functions, the
 *     SE_RGBtoYIQ() and SE_YIQtoRGB() functions. Thus, the SE_YIQ_Data
 *     structure is not included in the general SE_Colour_Data structure.
 */

typedef	struct
{
	SE_Long_Float	y;	(notes)
	SE_Long_Float	i;
	SE_Long_Float	q;

} SE_YIQ_Data;

Field Notes

y

 luminance, not yellow

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Last updated: July 16, 2004