Package com.vaadin.testbench.screenshot

Class ImageComparisonUtil

java.lang.Object

com.vaadin.testbench.screenshot.ImageComparisonUtil

public class ImageComparisonUtil
extends Object

Constructor Summary

Constructors

Constructor	Description
ImageComparisonUtil()

Method Summary

Modifier and Type	Method	Description
static String	generateImageHash(BufferedImage image)	Generates blocks representing an image by dividing the image up in 16x16 pixel blocks and calculating a mean value of the color in each block.
static int	getNrBlocks(int pixels)	Returns the number of blocks used for the given number of pixels.

Methods inherited from class java.lang.Object

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

Constructor Details

ImageComparisonUtil

public ImageComparisonUtil()

Method Details

generateImageHash

public static String generateImageHash(BufferedImage image)

Generates blocks representing an image by dividing the image up in 16x16 pixel blocks and calculating a mean value of the color in each block.

Parameters:

image - the image

Returns:

the block representation of the image

getNrBlocks

public static int getNrBlocks(int pixels)

Returns the number of blocks used for the given number of pixels. All blocks are full size with the (possible) exception of the bottom and right edges.

Parameters:

pixels - The number of pixels for the dimension.

Returns:

The number of blocks used for that dimension