AForge.Imaging.Filters.Shrink.ProcessFilter C# (CSharp) Метод

        protected override unsafe void ProcessFilter( UnmanagedImage sourceData, UnmanagedImage destinationData )
        {
            // get destination image size
            int newWidth  = destinationData.Width;
            int newHeight = destinationData.Height;

            int srcStride = sourceData.Stride;
            int dstStride = destinationData.Stride;
            int copySize  = newWidth;

            // do the job
            byte* src = (byte*) sourceData.ImageData.ToPointer( );
            byte* dst = (byte*) destinationData.ImageData.ToPointer( );

            src += ( minY * srcStride );

            if ( destinationData.PixelFormat == PixelFormat.Format8bppIndexed )
            {
                src += minX;
            }
            else
            {
                src += minX * 3;
                copySize *= 3;
            }

            // copy image
            for ( int y = 0; y < newHeight; y++ )
            {
                AForge.SystemTools.CopyUnmanagedMemory( dst, src, copySize );
                dst += dstStride;
                src += srcStride;
            }
        }
    }