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NS.9
NS.9
Associate II
July 4, 2022
Question

Conversion from Raw Bayer format to RGB format in STM32F7508-DK

  • July 4, 2022
  • 2 replies
  • 1475 views

From the example code 'CAMERA' for STM32F7508-DK.

main.c/ "static void LCD_LL_ConvertLineToARGB8888(void *pSrc, void *pDst)" function we have configured DMA2D_Input_Color_Mode macro to DMA2D_INPUT_RGB888 and we are getting color image but the colors are not identical, in the place of yellow color we ara getting blue color and in the place of blue we are getting yellow color. This may be because of Bayer's color format. We tried all the macros mentioned below under DMA2D_Input_Color_Mode.

DMA2D_INPUT_ARGB8888    0x00000000U 

DMA2D_INPUT_RGB888     0x00000001U 

DMA2D_INPUT_RGB565     0x00000002U

DMA2D_INPUT_ARGB1555    0x00000003U

DMA2D_INPUT_ARGB4444    0x00000004U 

DMA2D_INPUT_L8       0x00000005U 

DMA2D_INPUT_AL44      0x00000006U 

DMA2D_INPUT_AL88      0x00000007U 

DMA2D_INPUT_L4       0x00000008U 

DMA2D_INPUT_A8       0x00000009U 

DMA2D_INPUT_A4       0x0000000AU 

Can you please share the configuration for Bayer format.

This topic has been closed for replies.

2 replies

Andrew Neil
Andrew Neil
Super User
July 5, 2022

see also: https://community.st.com/s/question/0D53W00001eZES2SAO/is-stm-dcmi-driver-support-raw-bayer-image-format

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
KDJEM.1
KDJEM.1
ST Technical Moderator
July 20, 2022

Hi @NS.9​ ,

A similar question is already asked here.

You can find in the RM0385 Table 35 that the DMA2D can't support the Raw Bayer format. So, you can't do the conversion from Raw Bayer format to RGB format.

Kaouthar

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