io.github.privacystreams.image

Class ImageOperators

java.lang.Object

io.github.privacystreams.image.ImageOperators

@PSOperatorWrapper
public class ImageOperators
extends java.lang.Object

A helper class to access image-related operators

Constructor Summary

Constructors

Constructor and Description
ImageOperators()

Method Summary

Modifier and Type	Method and Description
static Function<Item,ImageData>	blur(java.lang.String imageDataField) Blur the image specified by an ImageData field, and return the blurred ImageData instance.
static Function<Item,java.lang.Integer>	countFaces(java.lang.String imageDataField) Count faces in an image.
static Function<Item,java.lang.String>	extractText(java.lang.String imageDataField) Extract text in an image.
static Function<Item,android.graphics.Bitmap>	getBitmap(java.lang.String imageDataField) Get the Bitmap of the image specified by an ImageData field.
static Function<Item,android.media.ExifInterface>	getExif(java.lang.String imageDataField) Retrieve the EXIF of the image specified by an ImageData field.
static Function<Item,java.lang.String>	getFilepath(java.lang.String imageDataField) Get the file path of the image specified by an ImageData field.
static Function<Item,LatLon>	getLatLon(java.lang.String imageDataField) Retrieve the location information of the image specified by an ImageData field.
static Function<Item,java.lang.Boolean>	hasCharacter(java.lang.String imageDataField) Detect characters in an image.
static Function<Item,java.lang.Boolean>	hasFace(java.lang.String imageDataField) Detect faces in an image.

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageOperators

public ImageOperators()

Method Detail

getExif

public static Function<Item,android.media.ExifInterface> getExif(java.lang.String imageDataField)

Retrieve the EXIF of the image specified by an ImageData field. The EXIF information is an instance of Android `ExifInterface` class.

Parameters:

imageDataField - the name of ImageData field

Returns:

the function

getLatLon

public static Function<Item,LatLon> getLatLon(java.lang.String imageDataField)

Retrieve the location information of the image specified by an ImageData field. The location information is an instance of `LatLon` class.

Parameters:

imageDataField - the name of ImageData field

Returns:

the function

getFilepath

public static Function<Item,java.lang.String> getFilepath(java.lang.String imageDataField)

Get the file path of the image specified by an ImageData field. The path might point to a temporary image file if it is not from storage. To permanently save the file, you need to copy the file to another file path.

Parameters:

imageDataField - the name of ImageData field

Returns:

the function

getBitmap

public static Function<Item,android.graphics.Bitmap> getBitmap(java.lang.String imageDataField)

Get the Bitmap of the image specified by an ImageData field.

Parameters:

imageDataField - the name of ImageData field

Returns:

the function

blur

public static Function<Item,ImageData> blur(java.lang.String imageDataField)

Blur the image specified by an ImageData field, and return the blurred ImageData instance.

Parameters:

imageDataField - the name of ImageData field

Returns:

the function

hasFace

public static Function<Item,java.lang.Boolean> hasFace(java.lang.String imageDataField)

Detect faces in an image. This operator outputs true if there is at least one face in the image.

Parameters:

imageDataField - the name of ImageData field

Returns:

the function

countFaces

public static Function<Item,java.lang.Integer> countFaces(java.lang.String imageDataField)

Count faces in an image. This operator outputs the number of faces in the image.

Parameters:

imageDataField - the name of ImageData field

Returns:

the operator

hasCharacter

public static Function<Item,java.lang.Boolean> hasCharacter(java.lang.String imageDataField)

Detect characters in an image. This operator outputs true if there is at least one character in the image.

Parameters:

imageDataField - the name of ImageData field

Returns:

the function

extractText

public static Function<Item,java.lang.String> extractText(java.lang.String imageDataField)

Extract text in an image. This operator outputs the text in the images.

Parameters:

imageDataField - the name of ImageData field

Returns:

the function