TImageEnProc.Opening

Declaration

procedure Opening(WindowSize: Integer);

Description

Perform an erosion (Minimum filter with WindowSize parameter) followed by a dilation (Maximum filter with WindowSize parameter).

The opening filter operation will reduce small positive oriented regions and positive noise regions.

Note:
◼A UI for this is available to your users in the Image Processing dialog
◼If the image PixelFormat is not ie24RGB or ie1g, it will be converted

Demo

Demos\ImageEditing\EveryMethod\EveryMethod.dpr

Example

Also see: Automated Samples

// Perform an erosion followed by a dilation
ImageEnView1.Proc.Opening( 1 );

Method Comparison

ImageEnView1.IO.LoadFromFile( 'D:\TestImage.jpg' );

// Perform a dilation followed by an erosion
ImageEnView1.Proc.Closing( 1 );

// Perform an erosion followed by a dilation
ImageEnView1.Proc.Opening( 1 );

// Set each pixel to the minimum value of all pixel values in the neighborhood
ImageEnView1.Proc.Minimum( 1 );

// Set each pixel to the maximum value of all pixel values in the neighborhood
ImageEnView1.Proc.Maximum( 1 );

// Perform IEVision Dilation (Rectangle)
ImageEnView1.IEBitmap.GetIEVisionImage().dilate( ievMORPH_RECT, 4 );
ImageEnView1.Update();

// Perform IEVision Dilation (Cross)
ImageEnView1.IEBitmap.GetIEVisionImage().dilate( ievMORPH_CROSS, 4 );
ImageEnView1.Update();

// Perform Dilation (Ellipse)
ImageEnView1.IEBitmap.GetIEVisionImage().dilate( ievMORPH_ELLIPSE, 4 );
ImageEnView1.Update();

// Perform IEVision Erosion (Rectangle)
ImageEnView1.IEBitmap.GetIEVisionImage().erode( ievMORPH_RECT, 4 );
ImageEnView1.Update();

// Perform IEVision Erosion (Cross)
ImageEnView1.IEBitmap.GetIEVisionImage().erode( ievMORPH_CROSS, 4 );
ImageEnView1.Update();

// Perform IEVision Erosion (Ellipse)
ImageEnView1.IEBitmap.GetIEVisionImage().erode( ievMORPH_ELLIPSE, 4 );
ImageEnView1.Update();

TImageEnProc.Opening