net.sourceforge.lept4j.util

Class LeptUtils

java.lang.Object

net.sourceforge.lept4j.util.LeptUtils

public class LeptUtils
extends Object

Various utility methods for Leptonica.

Constructor Summary

Constructors

Constructor and Description
LeptUtils()

Method Summary

Modifier and Type	Method and Description
static Pix	convertImageToPix(BufferedImage image) Converts BufferedImage to Leptonica Pix .
static BufferedImage	convertPixToImage(Pix pix) Converts Leptonica Pix to BufferedImage.
static void	dispose(com.sun.jna.Structure resource) Disposes of Leptonica native resource.
static void	disposePix(Pix pix) Disposes of Pix resource.
static Pix	removeLines(Pix pixs) Removes horizontal lines from a grayscale image.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LeptUtils

public LeptUtils()

Method Detail

convertPixToImage

public static BufferedImage convertPixToImage(Pix pix)
                                       throws IOException

Converts Leptonica Pix to BufferedImage.

Parameters:

pix -

Returns:

BufferedImage

Throws:

IOException

convertImageToPix

public static Pix convertImageToPix(BufferedImage image)
                             throws IOException

Converts BufferedImage to Leptonica Pix .

Parameters:

image -

Returns:

Pix

Throws:

IOException

removeLines

public static Pix removeLines(Pix pixs)

Removes horizontal lines from a grayscale image. The algorithm is based on Leptonica lineremoval.c example.
To remove vertical lines, rotate the image 90 degrees first, remove the horizontal lines, and rotate it back.

Parameters:

pixs - input image

Returns:

image with lines removed

See Also:

line-removal

disposePix

public static void disposePix(Pix pix)

Disposes of Pix resource.

Parameters:

pix -

dispose

public static void dispose(com.sun.jna.Structure resource)

Disposes of Leptonica native resource.

Parameters:

resource - A Leptonica object, such as Pix, Pixa, Box, Boxa, PixColormap, etc.