TIEVisionImage.matchTemplateAsMap

Declaration

function matchTemplateAsMap(templ: TIEVisionImage; matchMethod: TIEVisionTemplateMatchMethod): TIEVisionImage; safecall;

Description

Search the image for the location of the template image and returns the map of comparison results (a ie32f bitmap).




Using Template matching to find the original location of a cropped portion of image:



Note: If a map is not required use matchTemplate or matchTemplateMulti

Demo

Example

procedure TMainForm.Button2Click(Sender: TObject);
var
  image, templ, map: TIEVisionImage;
  rect: TIEVisionRect;
begin
  ImageEnView1.LayersClear( False );

  // get image to search
  image := ImageEnView1.IEBitmap.GetIEVisionImage();

  // get the template image to find
  templ := IEVSource.IEBitmap.GetIEVisionImage();

  // perform template searching
  rect := image.matchTemplate(templ, TIEVisionTemplateMatchMethod(ComboBox1.ItemIndex));

  // draw a red box around the found rectangle
  ImageEnView1.LayersAdd( iesRectangle, IEVisionRectToTRect( rect ), clRed, 2 );

  // fill the resulting map
  map := image.matchTemplateAsMap(templ, TIEVisionTemplateMatchMethod(ComboBox1.ItemIndex));
  ImageEnView2.IEBitmap.AssignIEVisionImage(map);
end;

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