java.lang.Object
- com.logicaldoc.zonalocr.Util

```
public class Util
extends Object
```
Utility methods for the Zonal OCR

Since:

8.4.2

Author:

Marco Meschieri - LogicalDOC

Constructor Summary

Constructors
Constructor Description

Util()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static BufferedImage`	`cropImage(BufferedImage originalImage, Zone zone)`	Crops an area from given image
`static void`	`cropImageToFile(String content, Zone zone, File file)`	Crops an area and stores it in a given .jpg file
`static String`	`encodeImage(File image)`	Encodes in Bas64 the given image file
`static void`	`pasteImage(BufferedImage container, BufferedImage imageIn, float opaque, int x, int y)`	Prints the contents of imageIn on container the given opaque value
`static void`	`printFirstPage(File originalFile, String originalFileName, File out)`	Prints the first page of the given file into the output as .jpg image
`static void`	`saveImage(String content, File file)`	Saves an image into a given file in .jpg format
`static void`	`updateZoneSample(String sampleContent, Zone zone)`

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail
- Util
```
public Util()
```

Method Detail

updateZoneSample

public static void updateZoneSample(String sampleContent,
                                    Zone zone)

saveImage
```
public static void saveImage(String content,
                             File file)
                      throws IOException
```
Saves an image into a given file in .jpg format

Parameters:

content - the content of the image Base64 encoded

file - the output file

Throws:

IOException - in case of I/O error

cropImageToFile

public static void cropImageToFile(String content,
                                   Zone zone,
                                   File file)
                            throws IOException

Crops an area and stores it in a given .jpg file

Parameters:: content - the content of the source image Base64 encoded; zone - the zone definition; file - the output file
Throws:: IOException - an I/O error

cropImage

public static BufferedImage cropImage(BufferedImage originalImage,
                                      Zone zone)

Crops an area from given image

Parameters:: originalImage - the original image; zone - the zone definition
Returns:: the cropped image

pasteImage

public static void pasteImage(BufferedImage container,
                              BufferedImage imageIn,
                              float opaque,
                              int x,
                              int y)

Prints the contents of imageIn on container the given opaque value

Parameters:: container - the bigger image; imageIn - the image to print in; opaque - and indication of how opaque must be the print; x - left coordinate; y - top coordinate

encodeImage
```
public static String encodeImage(File image)
                          throws FileNotFoundException,
                                 IOException
```
Encodes in Bas64 the given image file

Parameters:

image - the image to encode

Returns:

the encoded image

Throws:

IOException - error in the elaboration of the image

FileNotFoundException - error accessing the file

printFirstPage

public static void printFirstPage(File originalFile,
                                  String originalFileName,
                                  File out)
                           throws IOException

Prints the first page of the given file into the output as .jpg image

Parameters:: originalFile - the original file; originalFileName - the original filename; out - the output .jpg file
Throws:: IOException - a generic I/O error

Class Util

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Util