SLASetADCParameters_t Struct Reference

Description

Set parameters of the video analog-to-digital converter for analog inputs and color parameters for color digital cameras.

typedef struct {
  u8 brightness;
  u8 contrast;
  u8 saturation;
  u8 hue;
  u8 luma1;
  u8 luma2;
  u8 luma3;
  u8 chroma1;
  u8 chroma2;
  u8 mode;
  u8 cameraIndex;
  u16 exposure;
} SLASetADCParameters_t;

For the IMX412 sensor, a lower noise image is achieved by increasing exposure time first then increasing analog gain before increasing digital gain to make a bright enough image. Long exposures may result in frame blur for high speed camera or scene motion, so you may need to reduce the exposure in some cases.

See also

SLASetDigitalCameraParameters_t to set auto gain controls.

Message ID 0x18

Byte Offset	Name	Description
4	brightness	0 = dark, 128 = default, 255 = bright Also used in enhancement modes, see SLASetVideoEnhancementParameters_t
5	contrast	0 = minimum contrast, 128 = default, 255 = maximum Also used in enhancement modes, see SLASetVideoEnhancementParameters_t
6	saturation	Some Color Cameras: Color saturation. 0 = no color, 128 = default, 255= maximum For High Bit Depth Cameras: Controls the mix between spread based and extreme based auto-gain.   0 -> 100% spread based auto gain, controlled by brightness and contrast (high contrast image, may be saturated in some areas)   255 -> 100% extreme (min/max) based auto-gain (shows detail for very bright or dark objects)   128 -> Even mix of spread and extreme auto-gain methods (default) Also used in enhancement modes, see SLASetVideoEnhancementParameters_t
7	hue	HDMI: Hue, 0 = default Analog: Hue, 0 = default
8	luma1	AGS720P: Luma gain, 98 = default IMX412: Analog gain, 200 = default IMX219, OV5647: Analog gain, 64 =default
9	luma2	Red Gain AGS720P: 32 = default IMX412: 0 = default IMX219: 64 = default
10	luma3	Green Gain AGS720P: 24 = default IMX412: 0 = default
11	chroma1	Blue Gain AGS720P: 36 = default IMX412: 0 = default
12	chroma2	Gain Offset IMX412, IMX219: 0 = default
13	mode	Reserved
14	cameraIndex	Camera for settings (0 to 2). If not present, applies to SLACommandCamera_t.
15-16	exposure	Exposure or integration time. 0 = minimum to 255 = maximum, default 128 New 3.4.6 (previously saturation)   IMX412: Exposure in image lines = 8 + 16*saturation New 3.4.6 (previously 8 + 8*saturation)   IMX219: Exposure in image lines = 8 + 6.5*saturation   OV5647: Exposure time = 8 + 48*saturation