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The SEDRIS Data Representation Model
APPENDIX D - Functions SE RGBtoYIQ |
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| extern SE_DRM_Status_Code | ||||
| SE_RGBtoYIQ | ||||
| ( | ||||
| const | SE_RGB_Data | * | original_colour_ptr, | 1 |
| SE_YIQ_Data | * | new_colour_ptr | 2 | |
| ); | ||||
This function converts an RGB colour value to a YIQ colour value.
The colour model conversion algorithm is based on the algorithm published in section 13.3.3, "The YIQ Color Model" of Computer Graphics: Principles and Practice - Second Edition in C, by James D. Foley, Andries van Dam, Steven K. Feiner, and John F. Hughes, published by Addison-Wesley Publishing Company (Reprinted with corrections November 1992, November 1993, and July 1995), Copyright 1996, 1990 by Addison-Wesley Publishing Company, Inc.
| SE_DRM_STAT_CODE_SUCCESS | and *new_colour_ptr is set appropriately, if valid parameters were passed in. |
| SE_DRM_STAT_CODE_NULL_REQUIRED_PARAMETER | and no changes are made, if any parameter was NULL. |
1 a pointer to the incoming RGB colour
2 a pointer to where the converted YIQ colour will be stored
Prev: SE_RGBtoHLS.
Next: SE_SRFContextInfoEqual.
Up:Index.
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