public int GetBrightness()
{
int val;
VideoProcAmpFlags flags;
try {
if (_videoSource.GetVideoProperty(VideoProcAmpProperty.Brightness, out val, out flags))
{
return(val);
}
} catch {
//ignore
}
return(-1);
}
private static CameraProperty ReadProperty(VideoCaptureDevice device, VideoProcAmpProperty property)
{
CameraProperty p = new CameraProperty();
p.Identifier = property.ToString();
p.Specific = "VideoProcAmp";
p.ReadOnly = false;
p.Type = CameraPropertyType.Integer;
p.Representation = CameraPropertyRepresentation.LinearSlider;
p.CanBeAutomatic = true;
try
{
int min;
int max;
int step;
int defaultValue;
VideoProcAmpFlags flags;
bool success = device.GetVideoPropertyRange(property, out min, out max, out step, out defaultValue, out flags);
if (!success)
{
p.Supported = false;
}
else
{
p.Supported = true;
p.Minimum = min.ToString(CultureInfo.InvariantCulture);
p.Maximum = max.ToString(CultureInfo.InvariantCulture);
int currentValue;
success = device.GetVideoProperty(property, out currentValue, out flags);
if (!success)
{
p.Supported = false;
}
else
{
p.CurrentValue = currentValue.ToString(CultureInfo.InvariantCulture);
p.Automatic = flags == VideoProcAmpFlags.Auto;
}
}
}
catch
{
p.Supported = false;
}
return(p);
}
private VideoParm GetCameraParm()
{
var exposureValue = 0; //曝光-4 -10
var exposureFlage = CameraControlFlags.Auto;
device.GetCameraProperty(CameraControlProperty.Exposure, out exposureValue, out exposureFlage);
var brightnessValue = 0;//亮度 -64 64
var brightnessFlage = VideoProcAmpFlags.Auto;
device.GetVideoProperty(VideoProcAmpProperty.Brightness, out brightnessValue, out brightnessFlage);
var contrastValue = 0;//对比度 0 95
var contrastFlage = VideoProcAmpFlags.Auto;
device.GetVideoProperty(VideoProcAmpProperty.Contrast, out contrastValue, out contrastFlage);
var sharpnessValue = 0;//清晰度 1 7
var sharpnessFlage = VideoProcAmpFlags.Auto;
device.GetVideoProperty(VideoProcAmpProperty.Sharpness, out sharpnessValue, out sharpnessFlage);
var whiteBalanceValue = 0; //白平衡
var whiteBalanceFlage = VideoProcAmpFlags.Auto;
device.GetVideoProperty(VideoProcAmpProperty.WhiteBalance, out whiteBalanceValue, out whiteBalanceFlage);
var saturationValue = 0; //饱和度
var saturationFlage = VideoProcAmpFlags.Auto;
device.GetVideoProperty(VideoProcAmpProperty.Saturation, out saturationValue, out saturationFlage);
var gammaValue = 0; //伽马
var gammaFlage = VideoProcAmpFlags.Auto;
device.GetVideoProperty(VideoProcAmpProperty.Gamma, out gammaValue, out gammaFlage);
var backlightCompensationValue = 0; //逆光对比
var backlightCompensationFlage = VideoProcAmpFlags.Auto;
device.GetVideoProperty(VideoProcAmpProperty.BacklightCompensation, out backlightCompensationValue, out backlightCompensationFlage);
//var hueValue = 0; //色调
//var hueFlage = VideoProcAmpFlags.Auto;
//device.GetVideoProperty(VideoProcAmpProperty.Hue, out hueValue, out hueFlage);
VideoParm parm = new VideoParm
{
Baoguang = exposureValue,
Liangdu = brightnessValue,
Duibidu = contrastValue,
Qingxidu = sharpnessValue,
Baipingheng = whiteBalanceValue,
Baohedu = saturationValue,
Gama = gammaValue,
Niguangduibi = backlightCompensationValue,
//Sediao = hueValue
};
return(parm);
}