mirror of
https://github.com/xdsopl/robot36.git
synced 2025-12-06 07:12:07 +01:00
25 lines
557 B
C
25 lines
557 B
C
|
|
||
|
|
#include "yuv.h"
|
||
|
|
|
||
|
|
uint8_t yuv_limit(float x)
|
||
|
|
{
|
||
|
|
float tmp = x < 0.0 ? 0.0 : x;
|
||
|
|
return tmp > 255.0 ? 255.0 : tmp;
|
||
|
|
}
|
||
|
|
|
||
|
|
uint8_t R_YUV(uint8_t Y, uint8_t U, uint8_t V)
|
||
|
|
{
|
||
|
|
(void)U;
|
||
|
|
return yuv_limit(0.003906 * ((298.082 * (Y - 16.0)) + (408.583 * (V - 128))));
|
||
|
|
}
|
||
|
|
uint8_t G_YUV(uint8_t Y, uint8_t U, uint8_t V)
|
||
|
|
{
|
||
|
|
return yuv_limit(0.003906 * ((298.082 * (Y - 16.0)) + (-100.291 * (U - 128)) + (-208.12 * (V - 128))));
|
||
|
|
}
|
||
|
|
uint8_t B_YUV(uint8_t Y, uint8_t U, uint8_t V)
|
||
|
|
{
|
||
|
|
(void)V;
|
||
|
|
return yuv_limit(0.003906 * ((298.082 * (Y - 16.0)) + (516.411 * (U - 128))));
|
||
|
|
}
|
||
|
|
|