public bool Histogram()
{
int[] pHist = m_cHist.Hist;
if (m_InputImage != null)
{
for (int n = 0; n < 256; n++)
{
pHist[n] = 0;
}
int nHeight = InputImage.Height;
int nWidth = InputImage.Width;
Rectangle Rect = new Rectangle(0, 0, nWidth, nHeight);
BitmapData SocBitmapData = InputImage.LockBits(Rect
, ImageLockMode.ReadOnly, PixelFormat.Format8bppIndexed);
try
{
if (SocBitmapData != null)
{
unsafe
{
byte *Soc = (byte *)SocBitmapData.Scan0.ToPointer();
int nStride = SocBitmapData.Stride;
for (int nH = 0; nH < nHeight; nH++)
{
for (int nW = 0; nW < nStride; nW += 8)
{
pHist[Soc[nW]]++;
pHist[Soc[nW + 1]]++;
pHist[Soc[nW + 2]]++;
pHist[Soc[nW + 3]]++;
pHist[Soc[nW + 4]]++;
pHist[Soc[nW + 5]]++;
pHist[Soc[nW + 6]]++;
pHist[Soc[nW + 7]]++;
}
Soc += nStride;
}
}
InputImage.UnlockBits(SocBitmapData);
}
}
catch (Exception pe)
{
string sMsg = pe.ToString();
return(false);
}
}
return(true);
}
