Update the color config for the VD66GY sensor

[FB__1]

 

Hello,

On the STM32N6, I am using DCMIPP_PIXEL_PACKER_FORMAT_YUV422_1.
I am seeing the correct coloring when using CMW_MIRRORFLIP_NONE and the incorrect coloring when setting CMW_MIRRORFLIP_FLIP.

 

Any help getting the correct DCMIPP_ColorConversionConfTypeDef color_conf for the CMW_MIRRORFLIP_FLIP ?

 

...

 

if (HAL_DCMIPP_PIPE_EnableRedBlueSwap(&hcamera_dcmipp, DCMIPP_PIPE1) != HAL_OK)

 {

Error_Handler();

 }



#define N10(val) (((val) ^ 0x7FF) + 1)
 DCMIPP_ColorConversionConfTypeDef color_conf = {
 .ClampOutputSamples = ENABLE,
 .OutputSamplesType = DCMIPP_CLAMP_YUV,
 .RR = N10(26), .RG = N10(87), .RB = 112, .RA = 128,
 .GR = 47, .GG = 157, .GB = 16, .GA = 16,
 .BR = 112, .BG = N10(102), .BB = N10(10), .BA = 128,
 };



if (HAL_DCMIPP_PIPE_SetYUVConversionConfig(&hcamera_dcmipp, DCMIPP_PIPE1, &color_conf) != HAL_OK)

 {

Error_Handler();

 }



if (HAL_DCMIPP_PIPE_EnableYUVConversion(&hcamera_dcmipp, DCMIPP_PIPE1) != HAL_OK)

 {

Error_Handler();

 }

 

[Saket_Om]

Hello @FB__1 

When using the STM32N6 DCMIPP with the YUV422_1 pixel packer format, it’s common to encounter color issues after applying a flip operation (such as CMW_MIRRORFLIP_FLIP). This is typically due to the U and V chroma components being swapped during the flip, which affects color conversion. To resolve this, you need to adjust the color conversion matrix in your DCMIPP_ColorConversionConfTypeDef configuration by swapping the U and V coefficients for each output channel. This ensures that the color channels are mapped correctly after the flip