|
public Collect16bppPixelValues ( List |
||
| points | List |
List of coordinates to collect pixels' value from. |
| return | ushort[] | |
public ushort[] Collect16bppPixelValues( List<IntPoint> points )
{
int pixelSize = Bitmap.GetPixelFormatSize( pixelFormat ) / 8;
if ( ( pixelFormat == PixelFormat.Format8bppIndexed ) || ( pixelSize == 3 ) || ( pixelSize == 4 ) )
{
throw new UnsupportedImageFormatException( "Unsupported pixel format of the source image. Use Collect8bppPixelValues() method for it." );
}
ushort[] pixelValues = new ushort[points.Count * ( ( pixelFormat == PixelFormat.Format16bppGrayScale ) ? 1 : 3 )];
unsafe
{
byte* basePtr = (byte*) imageData.ToPointer( );
ushort* ptr;
if ( pixelFormat == PixelFormat.Format16bppGrayScale )
{
int i = 0;
foreach ( IntPoint point in points )
{
ptr = (ushort*) ( basePtr + stride * point.Y + point.X * pixelSize );
pixelValues[i++] = *ptr;
}
}
else
{
int i = 0;
foreach ( IntPoint point in points )
{
ptr = (ushort*) ( basePtr + stride * point.Y + point.X * pixelSize );
pixelValues[i++] = ptr[RGB.R];
pixelValues[i++] = ptr[RGB.G];
pixelValues[i++] = ptr[RGB.B];
}
}
}
return pixelValues;
}
}