TIEVisionOCR.getTextAngle

Declaration

function getTextAngle(): single; overload; safecall;
function getTextAngle(image: TIEVisionImage): single; overload; safecall;

Description

Returns the text angle (orientation) in radians.
First overload takes last processed image as input.
Second overload takes the specified image as input.


Note:
◼You must use either getTextAngle or recognize to process the image. Use recognize if you need the text content. Use getTextAngle if you only require the orientation/skew of the image (which skips the text recognition for faster performance)
◼You should get a better deskew angle using getOrientation
◼A shortcut method for this is available: OCR_GetOrientation

Example

// Detect orientation
angle := OCR.getTextAngle( ImageEnView1.IEBitmap.GetIEVisionImage() ) * 180 / PI;
ImageEnView1.IEBitmap.Origin := ieboBOTTOMLEFT;
ImageEnView1.Proc.Rotate(-angle);

OCR.getTextAngle() returns -1.56 for the following image (which is -89°):

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