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The SEDRIS Data Representation Model
APPENDIX D - Functions SE RGBtoHLS |
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| extern SE_DRM_Status_Code | ||||
| SE_RGBtoHLS | ||||
| ( | ||||
| const | SE_RGB_Data | * | original_colour_ptr, | 1 |
| SE_HLS_Data | * | new_colour_ptr | 2 | |
| ); | ||||
This function converts an RGB colour value to an HLS colour value.
The colour model conversion algorithm is based on the algorithm published in section 13.3.5, "The HLS 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 HLS colour will be stored
Prev: SE_PrintYIQData.
Next: SE_RGBtoYIQ.
Up:Index.
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