//将原始矩阵元素拆分为3份，分别为m0,m1,m2
public static void Decompose3(ImageCore img, out BmpGray8 r, out BmpGray8 g, out BmpGray8 b)
{
if (img.ElementSize % 3 != 0)
{
throw new Exception("Source Mat NOT 3 Channel");
}
r = new BmpGray8(img.Width, img.Height);
r.InitMemory();
g = new BmpGray8(img.Width, img.Height);
g.InitMemory();
b = new BmpGray8(img.Width, img.Height);
b.InitMemory();
T * src = (T *)img.Scan0.ToPointer();
T * p0 = (T *)r.Scan0.ToPointer();
T * p1 = (T *)g.Scan0.ToPointer();
T * p2 = (T *)b.Scan0.ToPointer();
int loopCount = r.Count;
T * p = (T *)img.Scan0.ToPointer();
while (--loopCount > -1)
{
*p2++ = *p++;
*p1++ = *p++;
*p0++ = *p++;
}
}
public static void Threshold(ImageCore grayImage, out BmpGray8 region, byte min, byte max)
{
region = new BmpGray8(grayImage.Width, grayImage.Height);
region.InitMemory();
int loopCount = grayImage.Count;
byte *gp = (byte *)grayImage.Scan0.ToPointer();
byte *rp = (byte *)region.Scan0.ToPointer();
while (--loopCount > -1)
{
*rp++ = *gp >= min && *gp <= max?255:0;
gp++;
}
}
//
public static void Rgb3ToGray(BmpGray8 r, BmpGray8 g, BmpGray8 b, out BmpGray8 gray)
{
gray = new BmpGray8(r.Width, r.Height);
gray.InitMemory();
byte *grayPtr = (byte *)gray.Scan0.ToPointer();
byte *rptr = (byte *)r.Scan0.ToPointer();
byte *gptr = (byte *)g.Scan0.ToPointer();
byte *bptr = (byte *)b.Scan0.ToPointer();
int loopCount = r.Count;
while (--loopCount > -1)
{
#if GrayPrecision_16
*grayPtr++ = (byte)(((*rptr++) * 19595 + (*gptr++) * 38469 + (*bptr++) * 7472) >> 16);
#elif GrayPrecision_8
*grayPtr++ = (byte)(((*rptr++) * 76 + (*gptr++) * 150 + (*bptr++) * 30) >> 8);
#endif
}
}
public static unsafe BmpGray8 RLCListToImage(RLC_NodeList <byte> rlc, int width, int height)
{
BmpGray8 gray = new BmpGray8(width, height);
gray.InitMemory();
IOperatorSet <byte> .Fill(gray, 0);
RLC_Node <byte> node = rlc.head;
int loopCount;
byte * p = (byte *)gray.Scan0.ToPointer();
while (node != null)
{
loopCount = node.data.Length;
while (--loopCount > -1)
{
*(p + node.data.Index + loopCount) = 0xff;
}
node = node.next;
}
return(gray);
}