private void Button_CAPTURE_Click(object sender, EventArgs e)
{
if (m_nDeviceCurSel == -1)
{
return;
}
int nCaptureWidth = 0;
int nCaptureHeight = 0;
int nCaptureBitCount = 0;
int nRet = KSJApiBase.KSJ_CaptureGetSizeEx(m_nDeviceCurSel, ref nCaptureWidth, ref nCaptureHeight, ref nCaptureBitCount);
PrintErrorMessage(nRet);
byte[] pImageData = new byte[nCaptureWidth * nCaptureHeight * (nCaptureBitCount >> 3)];
long counterStart = 0;
KSJApiBase.QueryPerformanceCounter(ref counterStart);
nRet = KSJApiBase.KSJ_CaptureRgbData(m_nDeviceCurSel, pImageData);
PrintErrorMessage(nRet);
if (nRet != KSJCode.RET_SUCCESS)
{
TextBox_ELAPSE_TIME.Text = "Capture Fail.";
}
long counterEnd = 0;
KSJApiBase.QueryPerformanceCounter(ref counterEnd);
long nFreq = 0;
KSJApiBase.QueryPerformanceFrequency(ref nFreq);
float fInterval = (float)(counterEnd - counterStart);
float fElapse = fInterval / (float)nFreq * 1000; // MS
bool bCheck = CheckBox_SAVE.Checked;
if (bCheck)
{
string szFileName = string.Format("capture-{0}-{1}-{2}-{3}-{4}-{5}-{6}-{7}.bmp", DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day,
DateTime.Now.Hour, DateTime.Now.Minute, DateTime.Now.Second, DateTime.Now.Millisecond, fElapse);
KSJApiBase.KSJ_HelperSaveToBmp(pImageData, nCaptureWidth, nCaptureHeight, nCaptureBitCount, szFileName);
}
TextBox_ELAPSE_TIME.Text = string.Format("Elapse: {0}ms", fElapse);
}
private unsafe void Button_CAPTURE_Click(object sender, EventArgs e)
{
if (m_nDeviceCurSel == -1)
{
return;
}
int nCaptureWidth = 0;
int nCaptureHeight = 0;
int nCaptureBitCount = 0;
int nRet = KSJApiBase.KSJ_CaptureGetSizeEx(m_nDeviceCurSel, ref nCaptureWidth, ref nCaptureHeight, ref nCaptureBitCount);
PrintErrorMessage(nRet);
byte[] pImageData = new byte[nCaptureWidth * nCaptureHeight * (nCaptureBitCount >> 3)];
long counterStart = 0;
KSJApiBase.QueryPerformanceCounter(ref counterStart);
nRet = KSJApiBase.KSJ_CaptureRgbData(m_nDeviceCurSel, pImageData);
PrintErrorMessage(nRet);
if (nRet != KSJCode.RET_SUCCESS)
{
TextBox_ELAPSE_TIME.Text = "Capture Fail.";
}
long counterEnd = 0;
KSJApiBase.QueryPerformanceCounter(ref counterEnd);
long nFreq = 0;
KSJApiBase.QueryPerformanceFrequency(ref nFreq);
float fInterval = (float)(counterEnd - counterStart);
float fElapse = fInterval / (float)nFreq * 1000; // MS
bool bCheck = CheckBox_SAVE.Checked;
if (bCheck)
{
string szFileName = string.Format("capture-{0}-{1}-{2}-{3}-{4}-{5}-{6}-{7}.bmp", DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day,
DateTime.Now.Hour, DateTime.Now.Minute, DateTime.Now.Second, DateTime.Now.Millisecond, fElapse);
KSJApiBase.KSJ_HelperSaveToBmp(pImageData, nCaptureWidth, nCaptureHeight, nCaptureBitCount, szFileName);
}
TextBox_ELAPSE_TIME.Text = string.Format("Elapse: {0}ms", fElapse);
Bitmap bitmap = new Bitmap(nCaptureWidth, nCaptureHeight, PixelFormat.Format8bppIndexed);
//获取图像的BitmapData对像
BitmapData bmpData = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadWrite, PixelFormat.Format8bppIndexed);
byte *ptr = (byte *)(bmpData.Scan0);
for (int i = 0; i < nCaptureHeight; i++)
{
for (int j = 0; j < nCaptureWidth; j++)
{
int offset = (nCaptureHeight - i - 1) * bmpData.Width + j;
int val = pImageData[offset];
*(ptr + j) = (byte)val;
}
ptr = ptr + bmpData.Stride;
}
//Marshal.Copy(bmpData, 0, ptr, scanBytes);
bitmap.UnlockBits(bmpData); // 解锁内存区域
// 修改生成位图的索引表，从伪彩修改为灰度
ColorPalette palette;
// 获取一个Format8bppIndexed格式图像的Palette对象
using (Bitmap bmp = new Bitmap(1, 1, PixelFormat.Format8bppIndexed))
{
palette = bmp.Palette;
}
for (int i = 0; i < 256; i++)
{
palette.Entries[i] = Color.FromArgb(i, i, i);
}
// 修改生成位图的索引表
bitmap.Palette = palette;
Cognex.VisionPro.CogImage8Grey G8 = new Cognex.VisionPro.CogImage8Grey(bitmap);
cogDisplay1.Image = G8;
}
