public NewImage GetRect(Rectangle Rect)
{
var rectImg = new NewImage(Rect.Width, Rect.Height, this.Depth);
for (int x = 0; x < Rect.Width; x++)
{
for (int y = 0; y < Rect.Height; y++)
{
for (int k = 0; k < Depth; k++)
{
rectImg.Data[y * rectImg.Depth * rectImg.Width + x * rectImg.Depth + k] =
Data[(y + Rect.Y) * Depth * Width + (x + Rect.X) * Depth + k];
}
}
}
return(rectImg);
}
public NewImage ConvertToDepth(int ToDepth)
{
NewImage convertedImage = null;
int stride = Depth * Width;
int cstride = ToDepth * Width;
var convertedData = new byte[cstride * Height];
const float cr = 0.5f;
const float cg = 0.419f;
const float cb = 0.081f;
switch (this.Depth)
{
case 1:
switch (ToDepth)
{
case 3:
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
convertedData[y * cstride + ToDepth * x]
= convertedData[y * cstride + ToDepth * x + 1]
= convertedData[y * cstride + ToDepth * x + 2]
= Data[y * stride + Depth * x];
}
}
break;
case 4:
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
convertedData[y * cstride + ToDepth * x]
= convertedData[y * cstride + ToDepth * x + 1]
= convertedData[y * cstride + ToDepth * x + 2]
= Data[y * stride + Depth * x];
convertedData[y * cstride + ToDepth * x + 3] = 255;
}
}
break;
default:
throw new Exception("Image Depth to Converted Not Supported");
}
break;
case 3:
switch (ToDepth)
{
case 1:
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
convertedData[y * cstride + ToDepth * x] = (byte)(cb * Data[y * stride + Depth * x] + cg * Data[y * stride + Depth * x + 1] + cr * Data[y * stride + Depth * x + 2]);
}
}
break;
case 4:
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
convertedData[y * cstride + ToDepth * x] = Data[y * stride + Depth * x];
convertedData[y * cstride + ToDepth * x + 1] = Data[y * stride + Depth * x + 1];
convertedData[y * cstride + ToDepth * x + 2] = Data[y * stride + Depth * x + 2];
convertedData[y * cstride + ToDepth * x + 3] = 255;
}
}
break;
default:
throw new Exception("Image Depth to Converted Not Supported");
}
break;
case 4:
switch (ToDepth)
{
case 1:
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
convertedData[y * cstride + ToDepth * x] = (byte)(cb * Data[y * stride + Depth * x] + cg * Data[y * stride + Depth * x + 1] + cr * Data[y * stride + Depth * x + 2]);
}
}
break;
case 3:
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
convertedData[y * cstride + ToDepth * x] = Data[y * stride + Depth * x];
convertedData[y * cstride + ToDepth * x + 1] = Data[y * stride + Depth * x + 1];
convertedData[y * cstride + ToDepth * x + 2] = Data[y * stride + Depth * x + 2];
}
}
break;
default:
throw new Exception("Image Depth to Converted Not Supported");
}
break;
default:
throw new Exception("Image Depth Not Supported!");
}
return(convertedImage);
}
