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Not all attributes are supported by each device. Use the return value of imVideoCaptureGetAttribute to check if the attribute is supported.
VideoBrightness - Specifies the brightness, also called the black level.
VideoContrast - Specifies the contrast, expressed as gain factor.
VideoHue - Specifies the hue angle.
VideoSaturation - Specifies the saturation.
VideoSharpness - Specifies the sharpness.
VideoGamma - Specifies the gamma.
VideoColorEnable - Specifies the color enable setting. (0/100)
VideoWhiteBalance - Specifies the white balance, as a color temperature in degrees Kelvin.
VideoBacklightCompensation - Specifies the backlight compensation setting. (0/100)
VideoGain - Specifies the gain adjustment.
CameraPanAngle - Specifies the camera's pan angle. To 100 rotate right, To 0 rotate left (view from above).
CameraTiltAngle - Specifies the camera's tilt angle. To 100 rotate up, To 0 rotate down.
CameraRollAngle - Specifies the camera's roll angle. To 100 rotate right, To 0 rotate left.
CameraLensZoom - Specifies the camera's zoom setting.
CameraExposure - Specifies the exposure setting.
CameraIris - Specifies the camera's iris setting.
CameraFocus - Specifies the camera's focus setting, as the distance to the optimally focused target.
FlipHorizontal - Specifies the video will be flipped in the horizontal direction.
FlipVertical - Specifies the video will be flipped in the vertical direction.
AnalogFormat - Specifies the video format standard NTSC, PAL, etc. Valid values:
NTSC_M = 0
NTSC_M_J = 1
NTSC_433 = 2
PAL_B = 3
PAL_D = 4
PAL_H = 5
PAL_I = 6
PAL_M = 7
PAL_N = 8
PAL_60 = 9
SECAM_B = 10
SECAM_D = 11
SECAM_G = 12
SECAM_H = 13
SECAM_K = 14
SECAM_K1 = 15
SECAM_L = 16
SECAM_L1 = 17
PAL_N_COMBO = 18
1.7.1