TImageEnProc.CalcOrientation

Declaration

function CalcOrientation(): Integer;

Description

Find the correct orientation for a textual image. It is mainly used to detect whether to adjust a document from portrait to landscape.

Notes:
- Apply only to document images (images with text)
- CalcOrientation can only detect 0° or 90° orientation. It cannot detect upside down, inverted text.

Demo

Example

// Load test image
ImageEnView1.IO.LoadFromFile( 'D:\TestImage.jpg' );



// Automatically rotate a document
n := ImageEnView1.Proc.CalcOrientation();
ImageEnView1.Proc.Rotate( n );

See Also

- SkewDetectionFine
- SkewDetection

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