AForge.Imaging.ImageStatistics.ImageStatistics C# (CSharp) Method

ImageStatistics Class Documentation Datei anzeigen Open project: holisticware-admin/MonoVersal.AForgeNET

ImageStatistics() public method

Initializes a new instance of the ImageStatistics class.

The mask array must be of the same size as the specified source image, where 0 values correspond to areas which should be excluded from processing. So statistics is calculated only for pixels, which have none zero corresponding value in the mask.

Source pixel format is not supported. Mask must have the same size as the source image to get statistics for.
public ImageStatistics ( Bitmap image, byte mask ) : System
image System.Drawing.Bitmap Image to gather statistics about.
mask byte Mask array which specifies areas to collect statistics for.
return System 
        public ImageStatistics( Bitmap image, byte[,] mask )
        {
            CheckSourceFormat( image.PixelFormat );
            CheckMaskProperties( PixelFormat.Format8bppIndexed,
                new Size( mask.GetLength( 1 ), mask.GetLength( 0 ) ), new Size( image.Width, image.Height ) );

            // lock bitmap data
            BitmapData imageData = image.LockBits(
                new Rectangle( 0, 0, image.Width, image.Height ),
                ImageLockMode.ReadOnly, image.PixelFormat );

            try
            {
                // gather statistics
                unsafe
                {
                    fixed ( byte* maskPtr = mask )
                    {
                        ProcessImage( new UnmanagedImage( imageData ), maskPtr, mask.GetLength( 1 ) );
                    }
                }
            }
            finally
            {
                // unlock image
                image.UnlockBits( imageData );
            }
        }

Same methods

ImageStatistics::ImageStatistics ( Bitmap image ) : System
ImageStatistics::ImageStatistics ( Bitmap image, Bitmap mask ) : System
ImageStatistics::ImageStatistics ( UnmanagedImage image ) : System
ImageStatistics::ImageStatistics ( UnmanagedImage image, UnmanagedImage mask ) : System
ImageStatistics::ImageStatistics ( UnmanagedImage image, byte mask ) : System
ImageStatistics
CheckMaskProperties
CheckSourceFormat
ImageStatistics
ProcessImage