Dalsa 8K彩色相机Camera link C#采图

一个采图工具，所以界面做的很简单。

private SapAcquisition m_Acquisition;        private SapBuffer m_Buffers;        private SapAcqToBuf m_Xfer;        private SapView m_View;        private SapColorConversion m_ColorConv;        private SapProcessing m_Pro;        private SapLocation m_ServerLocation;        private String m_ConfigFileName;        private String m_Executetime;        private bool m_IsSignalDetected;        private bool m_online;        public bool CreateNewObjects()        {            m_ServerLocation = new SapLocation("Xtium-CL_MX4_1", 2);//第一位是显卡名称，第二位是选择模式的第几项            m_ConfigFileName = "22N_No_Name_Default_Default.ccf";//配置文件路径            m_Acquisition = new SapAcquisition(m_ServerLocation, m_ConfigFileName);            if (SapBuffer.IsBufferTypeSupported(m_ServerLocation, SapBuffer.MemoryType.ScatterGather))                m_Buffers = new SapBufferWithTrash(2, m_Acquisition, SapBuffer.MemoryType.ScatterGather);            else                m_Buffers = new SapBufferWithTrash(2, m_Acquisition, SapBuffer.MemoryType.ScatterGatherPhysical);            m_Xfer = new SapAcqToBuf(m_Acquisition, m_Buffers);            m_ColorConv = new SapColorConversion(m_Acquisition, m_Buffers);            m_Xfer.Pairs[0].EventType = SapXferPair.XferEventType.EndOfFrame;            m_Xfer.XferNotify += new SapXferNotifyHandler(xfer_XferNotify);            m_Xfer.XferNotifyContext = this;            m_Pro = new SapMyProcessing(m_Buffers, m_ColorConv, new SapProcessingDoneHandler(ProCallback), this);            if (!CreateObjects())            {                DestroyObjects();                DisposeObjects();                return false;            }            EnableSignalStatus();            return true;        }       //这项函数官方demo是用来显示帧率的，但是我这里不需要所以就没写功能，但是要加这个函数，否则连续采集的时候就只会拍两张照片。        static void ProCallback(object sender, SapProcessingDoneEventArgs pInfo)        {            Form1 demo = pInfo.Context as Form1;        }        private bool CreateObjects()        {            // Create acquisition object            if (m_Acquisition != null && !m_Acquisition.Initialized)            {                if (m_Acquisition.Create() == false)                {                    DestroyObjects();                    return false;                }            }            // Create buffer object            if (m_Buffers != null && !m_Buffers.Initialized)            {                if (m_Buffers.Create() == false)                {                    DestroyObjects();                    return false;                }                m_Buffers.Clear();            }            // Create color conversion object            if (m_ColorConv != null && !m_ColorConv.Initialized)            {                if (m_ColorConv.Create() == false)                {                    DestroyObjects();                    return false;                }            }            // Create view object            if (m_View != null && !m_View.Initialized)            {                if (m_ColorConv != null && m_ColorConv.Initialized)                {                    // Set buffer to be viewed                    // When using hardware color decoder, view the acquired RGB buffer,                    // otherwise, for software color conversion, view the converted RGB buffer.                    SapBuffer convBuffer = m_ColorConv.OutputBuffer;                    if (convBuffer != null && convBuffer.Initialized)                        m_View.Buffer = convBuffer;                    else                        m_View.Buffer = m_Buffers;                }                if (m_View.Create() == false)                {                    DestroyObjects();                    return false;                }            }            // Create Xfer object            if (m_Xfer != null && !m_Xfer.Initialized)            {                if (m_Xfer.Create() == false)                {                    DestroyObjects();                    return false;                }                m_Xfer.AutoEmpty = false;            }            // Create processing object            if (m_Pro != null && !m_Pro.Initialized)            {                if (!m_Pro.Create())                {                    DestroyObjects();                    return false;                }                m_Pro.AutoEmpty = true;            }            return true;        }        private void DestroyObjects()        {            if (m_Xfer != null && m_Xfer.Initialized)                m_Xfer.Destroy();            if (m_Pro != null && m_Pro.Initialized)                m_Pro.Destroy();            if (m_View != null && m_View.Initialized)                m_View.Destroy();            if (m_ColorConv != null && m_ColorConv.Initialized)                m_ColorConv.Destroy();            if (m_Buffers != null && m_Buffers.Initialized)                m_Buffers.Destroy();            if (m_Acquisition != null && m_Acquisition.Initialized)                m_Acquisition.Destroy();        }        private void DisposeObjects()        {            if (m_Xfer != null)            { m_Xfer.Dispose(); m_Xfer = null; }            if (m_Pro != null)            { m_Pro.Dispose(); m_Pro = null; }            if (m_View != null)            { m_View.Dispose(); m_View = null; }            if (m_ColorConv != null)            { m_ColorConv.Dispose(); m_ColorConv = null; }            if (m_Buffers != null)            { m_Buffers.Dispose(); m_Buffers = null; }            if (m_Acquisition != null)            { m_Acquisition.Dispose(); m_Acquisition = null; }        }        private void EnableSignalStatus()        {            if (m_Acquisition != null)            {                m_IsSignalDetected = (m_Acquisition.SignalStatus != SapAcquisition.AcqSignalStatus.None);                // if (m_IsSignalDetected == false)                 //  StatusLabelInfo.Text = "Online... No camera signal detected";                //  else                //   StatusLabelInfo.Text = "Online... Camera signal detected";                m_Acquisition.SignalNotifyEnable = true;            }        }            static void xfer_XferNotify(object sender, SapXferNotifyEventArgs argsNotify)        {            Form1 demo = argsNotify.Context as Form1;            // If grabbing in trash buffer, do not display the image, update the            // appropriate number of frames on the status bar instead            if (argsNotify.Trash)                return;            // Refresh view            else            {                demo.TakeImage();                demo.m_Pro.ExecuteNext();            }        }

private void button1_Click(object sender, EventArgs e)        {            m_Xfer.Grab();        }

private void button2_Click(object sender, EventArgs e)        {            m_Xfer.Freeze();        }

　　　　　private void TakeImage()        {            try            {                SapBuffer m_pBuffer;                int m_StartFrame;             //   SapBuffer.FileFormat[] m_StandardTypes;                m_pBuffer = m_Buffers;                m_StartFrame = m_pBuffer.Index; string m_Option = "-format jpeg -quality 30";                m_Buffers.Save(textBox2.Text, m_Option, m_StartFrame,0);            }            catch (Exception ex)            {                MessageBox.Show(ex.Message.ToString());            }        }

　

关于采图，上面用的是官方的SDK方式，因为我采集的图片像素是8K*8K，原图BMP格式有256MB，压缩成30%质量的JPG也还有2.3MB左右。

还有一种方式是用Bitmap来获取图片地址，但是需要注意的一点。

IntPtr addr;    int Height = m_Buffers.Height;    int Width = m_Buffers.Width;    m_Buffers.GetAddress(out addr);           bitmap = new Bitmap(Width, Height, Width * 4, System.Drawing.Imaging.PixelFormat.Format32bppRgb, addr);

　　这里的宽度是*4，原因是我的BMP原图图像位深度是32位的。所以保存用Bitmap的方式需要先确定原图的位深度，否则保存图片会出现重影。