com.applitools.utils

Class ImageUtils

java.lang.Object

com.applitools.utils.ImageUtils

public class ImageUtils
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	REQUIRED_IMAGE_TYPE

Constructor Summary

Constructors

Constructor and Description
ImageUtils()

Method Summary

Modifier and Type	Method and Description
static String	base64FromImage(BufferedImage image)
static BufferedImage	copyImageWithType(BufferedImage src, int updatedType) Creates a copy of an image with an updated image type.
static BufferedImage	cropImage(BufferedImage image, Region regionToCrop) Removes a given region from the image.
static byte[]	encodeAsPng(BufferedImage image) Encodes a given image as PNG.
static BufferedImage	getImagePart(BufferedImage image, Region region) Get a copy of the part of the image given by region.
static BufferedImage	imageFromBase64(String image64) Creates a BufferedImage instance from a base64 encoding of an image's bytes.
static BufferedImage	imageFromBytes(byte[] imageBytes) Creates a BufferedImage instance from raw image bytes.
static BufferedImage	imageFromFile(String path) Creates a BufferedImage from an image file specified by path.
static BufferedImage	imageFromResource(String resource) Creates a BufferedImage from an image file specified by resource.
static BufferedImage	normalizeImageType(BufferedImage image)
static BufferedImage	resizeImage(BufferedImage image, int targetWidth, int targetHeight) Scales an image by the given ratio
static BufferedImage	rotateImage(BufferedImage image, double deg) Rotates an image by the given degrees.
static void	saveImage(BufferedImage image, String filename) Save image to local file system
static BufferedImage	scaleImage(BufferedImage image, double scaleRatio) Scales an image by the given ratio
static BufferedImage	scaleImage(BufferedImage image, ScaleProvider scaleProvider) Scales an image by the given ratio

Methods inherited from class java.lang.Object

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

Field Detail

REQUIRED_IMAGE_TYPE

public static final int REQUIRED_IMAGE_TYPE

See Also:

Constant Field Values

Constructor Detail

ImageUtils

public ImageUtils()

Method Detail

normalizeImageType

public static BufferedImage normalizeImageType(BufferedImage image)

encodeAsPng

public static byte[] encodeAsPng(BufferedImage image)

Encodes a given image as PNG.

Parameters:

image - The image to encode.

Returns:

The PNG bytes representation of the image.

imageFromFile

public static BufferedImage imageFromFile(String path)
                                   throws EyesException

Creates a BufferedImage from an image file specified by path.

Parameters:

path - The path to the image file.

Returns:

A BufferedImage instance.

Throws:

EyesException - If there was a problem creating the BufferedImage instance.

imageFromResource

public static BufferedImage imageFromResource(String resource)
                                       throws EyesException

Creates a BufferedImage from an image file specified by resource.

Parameters:

resource - The resource path.

Returns:

A BufferedImage instance.

Throws:

EyesException - If there was a problem creating the BufferedImage instance.

imageFromBase64

public static BufferedImage imageFromBase64(String image64)
                                     throws EyesException

Creates a BufferedImage instance from a base64 encoding of an image's bytes.

Parameters:

image64 - The base64 encoding of an image's bytes.

Returns:

A BufferedImage instance.

Throws:

EyesException - If there was a problem creating the BufferedImage instance.

base64FromImage

public static String base64FromImage(BufferedImage image)

Parameters:

image - The image from which to get its base64 representation.

Returns:

The base64 representation of the image (bytes encoded as PNG).

imageFromBytes

public static BufferedImage imageFromBytes(byte[] imageBytes)
                                    throws EyesException

Creates a BufferedImage instance from raw image bytes.

Parameters:

imageBytes - The raw bytes of the image.

Returns:

A BufferedImage instance representing the image.

Throws:

EyesException - If there was a problem creating the BufferedImage instance.

getImagePart

public static BufferedImage getImagePart(BufferedImage image,
                                         Region region)

Get a copy of the part of the image given by region.

Parameters:

image - The image from which to get the part.

region - The region which should be copied from the image.

Returns:

The part of the image.

rotateImage

public static BufferedImage rotateImage(BufferedImage image,
                                        double deg)

Rotates an image by the given degrees.

Parameters:

image - The image to rotate.

deg - The degrees by which to rotate the image.

Returns:

A rotated image.

copyImageWithType

public static BufferedImage copyImageWithType(BufferedImage src,
                                              int updatedType)

Creates a copy of an image with an updated image type.

Parameters:

src - The image to copy.

updatedType - The type of the copied image. See BufferedImage.getType().

Returns:

A copy of the src of the requested type.

scaleImage

public static BufferedImage scaleImage(BufferedImage image,
                                       ScaleProvider scaleProvider)

Scales an image by the given ratio

Parameters:

image - The image to scale.

scaleProvider - The encapsulation of the required scaling.

Returns:

If the scale ratio != 1, returns a new scaled image, otherwise, returns the original image.

scaleImage

public static BufferedImage scaleImage(BufferedImage image,
                                       double scaleRatio)

Scales an image by the given ratio

Parameters:

image - The image to scale.

scaleRatio - Factor to multiply the image dimensions by

Returns:

If the scale ratio != 1, returns a new scaled image, otherwise, returns the original image.

resizeImage

public static BufferedImage resizeImage(BufferedImage image,
                                        int targetWidth,
                                        int targetHeight)

Scales an image by the given ratio

Parameters:

image - The image to scale.

targetWidth - The width to resize the image to

targetHeight - The height to resize the image to

Returns:

If the size of image equal to target size, returns the original image, otherwise, returns a new resized image.

cropImage

public static BufferedImage cropImage(BufferedImage image,
                                      Region regionToCrop)

Removes a given region from the image.

Parameters:

image - The image to crop.

regionToCrop - The region to crop from the image.

Returns:

A new image without the cropped region.

saveImage

public static void saveImage(BufferedImage image,
                             String filename)

Save image to local file system

Parameters:

image - The image to save.

filename - The path to save image