前言
大恒相机sdk适用于大恒相机网口与USB使用，并将采集数据转化为Halcon对象。
程序代码
csharp
internal class DaHeng_SDK
{
IGXDevice m_objIGXDevice = null; ///<设备对像
IGXStream m_objIGXStream = null; ///<流对像
IGXFactory m_objIGXFactory = null; ///<Factory对像
IGXFeatureControl m_objIGXFeatureControl = null; ///<远端设备属性控制器对像
IGXFeatureControl m_objIGXStreamFeatureControl = null; ///<流层属性控制器对象
List<IGXDeviceInfo> listGXDeviceInfo = null;
bool m_bIsColor = false;
public delegate void delegateProcessHImage(HObject Image);
public event delegateProcessHImage EventProcessImage;
/// <summary>
/// 查找相机
/// </summary>
/// <returns>输出所连接的相机列表</returns>
public List<string> FindCamer()
{
try
{
m_objIGXFactory = IGXFactory.GetInstance();
m_objIGXFactory.Init();
List<string> CamerName = new List<string>();
CloseCamerStream();
CloseCamer();
listGXDeviceInfo = new List<IGXDeviceInfo>();
m_objIGXFactory.UpdateDeviceList(200, listGXDeviceInfo);
m_objIGXFactory.Init();
for (int i = 0; i < listGXDeviceInfo.Count; i++)
{
CamerName.Add(listGXDeviceInfo[i].GetSN());
}
return CamerName;
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
return null;
}
}
/// <summary>
/// 开启相机
/// </summary>
/// <param name="输入相机序列号开启"></param>
/// <returns>开启失败返回false</returns>
public bool OpenCamer(string CamerName)
{
try
{
// 判断当前连接设备个数
if (listGXDeviceInfo.Count <= 0)
{
return false;
}
// 如果设备已经打开则关闭，保证相机在初始化出错情况下能再次打开
if (null != m_objIGXDevice)
{
m_objIGXDevice.Close();
m_objIGXDevice = null;
}
//打开列表指定设备
for (int i = 0; i < listGXDeviceInfo.Count; i++)
{
if (CamerName== listGXDeviceInfo[i].GetSN())
{
m_objIGXDevice = m_objIGXFactory.OpenDeviceBySN(listGXDeviceInfo[i].GetSN(), GX_ACCESS_MODE.GX_ACCESS_EXCLUSIVE);
m_objIGXFeatureControl = m_objIGXDevice.GetRemoteFeatureControl();
}
}
//打开流
if (null != m_objIGXDevice)
{
m_objIGXStream = m_objIGXDevice.OpenStream(0);
m_objIGXStreamFeatureControl = m_objIGXStream.GetFeatureControl();
}
// 建议用户在打开网络相机之后，根据当前网络环境设置相机的流通道包长值，
// 以提高网络相机的采集性能,设置方法参考以下代码。
GX_DEVICE_CLASS_LIST objDeviceClass = m_objIGXDevice.GetDeviceInfo().GetDeviceClass();
if (GX_DEVICE_CLASS_LIST.GX_DEVICE_CLASS_GEV == objDeviceClass)
{
// 判断设备是否支持流通道数据包功能
if (true == m_objIGXFeatureControl.IsImplemented("GevSCPSPacketSize"))
{
// 获取当前网络环境的最优包长值
uint nPacketSize = m_objIGXStream.GetOptimalPacketSize();
// 将最优包长值设置为当前设备的流通道包长值
m_objIGXFeatureControl.GetIntFeature("GevSCPSPacketSize").SetValue(nPacketSize);
}
}
//注册相机回调函数
m_objIGXStream.RegisterCaptureCallback(this, __CaptureCallbackPro);
__IsSupportColor(ref m_bIsColor);
return true;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return false;
}
}
/// <summary>
/// 单步采集图像
/// </summary>
/// <returns>采集失败返回false</returns>
public bool OneGrap()
{
try
{
if (null != m_objIGXStream)
{
//清空相机数据，防止卡帧
m_objIGXStream.FlushQueue();
}
//发送软触发命令
if (null != m_objIGXFeatureControl)
{
//设置触发命令开启
m_objIGXFeatureControl.GetEnumFeature("TriggerMode").SetValue("On");
//发送软触发命令
m_objIGXFeatureControl.GetCommandFeature("TriggerSoftware").Execute();
}
return true;
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
return false;
}
}
//连续触发
public bool ContinuousGrap()
{
//发送开采命令
if (null != m_objIGXFeatureControl)
{
m_objIGXFeatureControl.GetEnumFeature("TriggerMode").SetValue("Off");
//设置采集模式连续采集
m_objIGXFeatureControl.GetEnumFeature("AcquisitionMode").SetValue("Continuous");
}
return true;
}
/// <summary>
/// 停止采集相机
/// </summary>
/// <returns>停止采集失败返回false</returns>
public bool CloseCamerStream()
{
//关闭采集流通道
if (null != m_objIGXStream)
{
m_objIGXStream.StopGrab();
}
return true ;
}
/// <summary>
/// 关闭相机
/// </summary>
/// <returns>关闭失败返回false</returns>
public bool CloseCamer()
{
try
{
//停止流通道、注销采集回调和关闭流
if (null != m_objIGXStream)
{
m_objIGXStream.StopGrab();
//注销采集回调函数
m_objIGXStream.UnregisterCaptureCallback();
m_objIGXStream.Close();
m_objIGXStream = null;
m_objIGXStreamFeatureControl = null;
}
//关闭设备
if (null != m_objIGXDevice)
{
listGXDeviceInfo = null;
m_objIGXFeatureControl = null;
m_objIGXDevice.Close();
m_objIGXFactory = null;
m_objIGXDevice = null;
}
return true;
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
return false;
}
}
/// <summary>
/// 获取相机设置
/// </summary>
/// <param name="ExposureTime">曝光时间</param>
/// <param name="Gain">增益</param>
/// <returns>获取失败返回false</returns>
public bool GetCamerSet(out int ExposureTime, out int Gain)
{
ExposureTime = 0; Gain=0;
try
{
ExposureTime = int.Parse(m_objIGXFeatureControl.GetFloatFeature("ExposureTime").GetValue().ToString());
Gain = int.Parse(m_objIGXFeatureControl.GetFloatFeature("Gain").GetValue().ToString());
return true;
}
catch (Exception)
{
return false;
}
}
/// <summary>
/// 设置相机参数
/// </summary>
/// <param name="ExposureTime">曝光时间</param>
/// <param name="Gain">增益</param>
/// <returns>获取失败返回false</returns>
public bool CamerSet(int ExposureTime,int Gain)
{
try
{
m_objIGXFeatureControl.GetFloatFeature("ExposureTime").SetValue(ExposureTime);
m_objIGXFeatureControl.GetFloatFeature("Gain").SetValue(Gain);
return true;
}
catch (Exception)
{
return false;
}
}
/// <summary>
/// 图像回调函数
/// </summary>
/// <param name="objUserParam"></param>
/// <param name="objIFrameData">回调结果参数</param>
private void __CaptureCallbackPro(object objUserParam, IFrameData objIFrameData)
{
try
{
HObject hPylonImage = new HObject();
HOperatorSet.GenEmptyObj(out hPylonImage);
Task.Run(() =>
{
if (m_bIsColor)
{
//彩色图像
HOperatorSet.GenImageInterleaved(out hPylonImage, (HTuple)objIFrameData.GetBuffer(), (HTuple)"rgb", (HTuple)objIFrameData.GetWidth(), (HTuple)objIFrameData.GetHeight(), -1, "byte", 0, 0, 0, 0, -1, 0);
}
else
{
//灰度图像
HOperatorSet.GenImage1Extern(out hPylonImage, "byte", (HTuple)objIFrameData.GetWidth(), (HTuple)objIFrameData.GetHeight(), (HTuple)objIFrameData.GetBuffer(), IntPtr.Zero);
}
EventProcessImage(hPylonImage);
});
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
/// <summary>
/// 开启相机采集
/// </summary>
/// <returns>开启失败返回false</returns>
public bool OpenCamerSteam()
{
try
{
if (null != m_objIGXStreamFeatureControl)
{
try
{
//设置流层Buffer处理模式为OldestFirst
m_objIGXStreamFeatureControl.GetEnumFeature("StreamBufferHandlingMode").SetValue("OldestFirst");
}
catch (Exception)
{
}
}
//开启采集流通道
if (null != m_objIGXStream)
{
m_objIGXStream.StartGrab();
}
//发送开采命令
if (null != m_objIGXFeatureControl)
{
//设置采集模式连续采集
m_objIGXFeatureControl.GetEnumFeature("AcquisitionMode").SetValue("Continuous");
//设置触发模式为开
m_objIGXFeatureControl.GetEnumFeature("TriggerMode").SetValue("On");
//选择触发源为软触发
m_objIGXFeatureControl.GetEnumFeature("TriggerSource").SetValue("Software");
m_objIGXFeatureControl.GetCommandFeature("AcquisitionStart").Execute();
}
return true;
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
return false;
}
}
/// <summary>
/// 判断当前采集数据是否为彩色图像
/// </summary>
/// <param name="bIsColorFilter"></param>
private void __IsSupportColor(ref bool bIsColorFilter)
{
bool bIsImplemented = false;
bool bIsMono = false;
string strPixelFormat = "";
strPixelFormat = m_objIGXDevice.GetRemoteFeatureControl().GetEnumFeature("PixelFormat").GetValue();
if (0 == string.Compare(strPixelFormat, 0, "Mono", 0, 4))
{
bIsMono = true;
}
else
{
bIsMono = false;
}
bIsImplemented = m_objIGXDevice.GetRemoteFeatureControl().IsImplemented("PixelColorFilter");
// 若当前为非黑白且支持PixelColorFilter则为彩色
if ((!bIsMono) && (bIsImplemented))
{
bIsColorFilter = true;
}
else
{
bIsColorFilter = false;
}
}
}
}