public unsafe void OpeningErodedProcessing(BitmapCustomImage sourceData, BitmapCustomImage destinationData, Rectangle rect)
{
PixelFormat pixelFormat = sourceData.PixelFormat;
int startX = rect.Left;
int startY = rect.Top;
int stopX = startX + rect.Width;
int stopY = startY + rect.Height;
int r = OpeningFilter.Size >> 1;
bool isFound;
if (pixelFormat == PixelFormat.Format8bppIndexed)
{
int dstStride = destinationData.Stride;
int srcStride = sourceData.Stride;
byte* baseSrc = (byte*)sourceData.ImageData.ToPointer();
byte* baseDst = (byte*)destinationData.ImageData.ToPointer();
for (int y = startY; y < stopY; y++)
{
byte* src = baseSrc + y * srcStride;
byte* dst = baseDst + y * dstStride;
byte min, v;
int t, ir, jr, i, j;
for (int x = startX; x < stopX; x++, src++, dst++)
{
min = 255; isFound = false;
for (i = 0; i < OpeningFilter.Size; i++)
{
ir = i - r; t = y + ir;
if (t < startY) continue;
if (t >= stopY) break;
for (j = 0; j < OpeningFilter.Size; j++)
{
jr = j - r; t = x + jr;
if (t < startX) continue;
if (t < stopX)
{
isFound = true;
v = src[ir * srcStride + jr];
if (v < min) min = v;
}
}
}
*dst = (isFound) ? min : *src;
}
}
}
}
protected unsafe void Convert60sImage(BitmapCustomImage sourceData, BitmapCustomImage destinationData)
{
int width = sourceData.Width;
int height = sourceData.Height;
PixelFormat srcPixelFormat = sourceData.PixelFormat;
if ((srcPixelFormat == PixelFormat.Format24bppRgb) || (srcPixelFormat == PixelFormat.Format32bppRgb) || (srcPixelFormat == PixelFormat.Format32bppArgb))
{
int pixelSize = (srcPixelFormat == PixelFormat.Format24bppRgb) ? 3 : 4;
int srcOffset = sourceData.Stride - width * pixelSize;
int dstOffset = destinationData.Stride - width;
int rc = (int)(0x10000 * cr);
int gc = (int)(0x10000 * cg);
int bc = (int)(0x10000 * cb);
while (rc + gc + bc < 0x10000)
{
bc++;
}
byte* src = (byte*)sourceData.ImageData.ToPointer();
byte* dst = (byte*)destinationData.ImageData.ToPointer();
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++, src += pixelSize, dst++)
{
*dst = (byte)((rc * src[2] + gc * src[1] + bc * src[0]) >> 16);
}
src += srcOffset;
dst += dstOffset;
}
}
}
protected unsafe void ProcessFilterTowards(BitmapCustomImage image, Bitmap tmpImage)
{
if (tmpImage != null)
{
int stepSize = 1;
BitmapData tmpData = tmpImage.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadOnly, image.PixelFormat);
BitmapCustomImage tmplay = new BitmapCustomImage(tmpData);
try
{
PixelFormat pixelFormat = image.PixelFormat;
int width = image.Width;
int height = image.Height;
int v;
if ((pixelFormat == PixelFormat.Format8bppIndexed))
{
int srcOffset = image.Stride - width;
int ovrOffset = tmplay.Stride - width;
byte* ptr = (byte*)image.ImageData.ToPointer();
byte* ovr = (byte*)tmplay.ImageData.ToPointer();
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++, ptr++, ovr++)
{
v = (int)*ovr - *ptr;
if (v > 0)
*ptr += (byte)((stepSize < v) ? stepSize : v);
else if (v < 0)
{
v = -v;
*ptr -= (byte)((stepSize < v) ? stepSize : v);
}
}
ptr += srcOffset;
ovr += ovrOffset;
}
}
}
finally
{
tmpImage.UnlockBits(tmpData);
}
}
}
protected unsafe void ProcessFilter(BitmapCustomImage image, Rectangle rect)
{
int startX = rect.Left;
int startY = rect.Top;
int stopX = startX + rect.Width;
int stopY = startY + rect.Height;
if (image.PixelFormat == PixelFormat.Format8bppIndexed)
{
int offset = image.Stride - rect.Width;
byte* ptr = (byte*)image.ImageData.ToPointer();
ptr += (startY * image.Stride + startX);
for (int y = startY; y < stopY; y++)
{
for (int x = startX; x < stopX; x++, ptr++)
*ptr = (byte)((*ptr >= threshold) ? 255 : 0);
ptr += offset;
}
}
else
{
byte* basePtr = (byte*)image.ImageData.ToPointer() + startX * 2;
int stride = image.Stride;
for (int y = startY; y < stopY; y++)
{
ushort* ptr = (ushort*)(basePtr + stride * y);
for (int x = startX; x < stopX; x++, ptr++)
*ptr = (ushort)((*ptr >= threshold) ? 65535 : 0);
}
}
}
protected unsafe void ProcessFilter(BitmapCustomImage image, BitmapCustomImage overlay)
{
int width = image.Width;
int height = image.Height;
int v;
if ((image.PixelFormat == PixelFormat.Format8bppIndexed))
{
int srcOffset = image.Stride - width;
int ovrOffset = overlay.Stride - width;
byte* ptr = (byte*)image.ImageData.ToPointer();
byte* ovr = (byte*)overlay.ImageData.ToPointer();
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++, ptr++, ovr++)
{
v = (int)*ptr - (int)*ovr;
*ptr = (v < 0) ? (byte)-v : (byte)v;
}
ptr += srcOffset;
ovr += ovrOffset;
}
}
}
protected unsafe void ProcessFilter(BitmapCustomImage image)
{
if (referenceImage != null)
{
BitmapData ovrData = referenceImage.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadOnly, image.PixelFormat);
try
{
ProcessFilter(image, new BitmapCustomImage(ovrData));
}
finally
{
referenceImage.UnlockBits(ovrData);
}
}
}