TIEVisionImage.detectLines
Declaration
function detectLines(detector: TIEVisionLinesDetector = ievBinaryDescriptor): TIEVisionVectorScalarInt32; safecall;
Description
Detects lines using a Binary Descriptor or LSDDetector detector.
Parameter | Description |
detector | Detection algorithm to use. |
Demo
| Demos\IEVision\LinesDetectVideo\LinesDetectVideo.dpr |
Example
var
lines: TIEVisionVectorScalarInt32;
i: integer;
begin
ImageEnView.IO.LoadFromFile('input.jpg');
lines := ImageEnView.IEBitmap.GetIEVisionImage().detectLines(ievBinaryDescriptor);
// draw results
ImageEnView.IEBitmap.PixelFormat := ie24RGB;
ImageEnView.IEBitmap.Origin := ieboBOTTOMLEFT;
for i := 0 to lines.size() - 1 do
begin
with lines.getScalarInt32(i) do
begin
with ImageEnView.IEBitmap.Canvas do
begin
Pen.Width := 2;
Pen.Color := TRGB2TColor(CreateRGB(Random(255), Random(255), Random(255)));
MoveTo(val[0], val[1]);
LineTo(val[2], val[3]);
end;
end;
end;
ImageEnView.Update();
end;