PerspectiveDeskewCommand Class

Summary

Detects and automatically deskews a document in three dimensions. Usually used to correct perspective distortion (deskew) introduced by the camera’s perspective in relation to the subject (usually a document).

Syntax

Objective-C

C++/CLI

Java

Python

public class PerspectiveDeskewCommand : RasterCommand

@interface LTPerspectiveDeskewCommand : LTRasterCommand

public class PerspectiveDeskewCommand 
    extends RasterCommand

public ref class PerspectiveDeskewCommand : public RasterCommand

class PerspectiveDeskewCommand(RasterCommand):

Remarks

For the best detection results, the document's boundaries should be inside the captured view and have a different background color than the background of the captured view.
The PerspectiveDeskewCommand can change the specified image. To keep the original image unchanged, use this function on a copy.
Use the PerspectiveDeskewCommand if there is depth (z-axis) deformation as well as deformation along the x- and y- axes. Use the DeskewCommand to fix 2D orientation. Unlike the DeskewCommand, the PerspectiveDeskewCommand does not look at the content of the captured document.
If the PerspectiveDeskewCommand fails to correct the skew, the original image is not changed.
This function supports 24 and 32-bit color images.
This command supports signed/unsigned images.