com.groupdocs.watermark.search

Class ImageDctHashSearchCriteria

java.lang.Object

com.groupdocs.watermark.search.SearchCriteria

com.groupdocs.watermark.search.PageSearchCriteria

com.groupdocs.watermark.search.ImageSearchCriteria

com.groupdocs.watermark.search.ImageDctHashSearchCriteria

public class ImageDctHashSearchCriteria
extends ImageSearchCriteria

Represents a search criteria for finding images in a document.

This search criteria uses DCT based perceptual image hash for calculating image similarity.

Learn more:

• Searching watermarks

The following example demonstrates how to search for images in the attached files (pdf).

   WatermarkerSettings settings = new WatermarkerSettings();
   settings.setSearchableObjects(new SearchableObjects());
   settings.getSearchableObjects().setPdfSearchableObjects(PdfSearchableObjects.All);
   PdfLoadOptions loadOptions = new PdfLoadOptions();
   Watermarker watermarker = new Watermarker("D:\\test.pdf", loadOptions);
   
   // Specify sample image to compare document images with
   ImageSearchCriteria criteria = new ImageDctHashSearchCriteria("D:\\sample.png");
   // Search for similar images
   PossibleWatermarkCollection possibleWatermarks = watermarker.search(criteria);
   // Remove or modify found image watermarks
   // ...
   
   watermarker.close();
 

Constructor Summary

Constructors

Constructor and Description
ImageDctHashSearchCriteria(InputStream stream) Initializes a new instance of the ImageDctHashSearchCriteria class with a specified stream.
ImageDctHashSearchCriteria(com.aspose.ms.System.IO.Stream stream)
ImageDctHashSearchCriteria(String filePath) Initializes a new instance of the ImageDctHashSearchCriteria class with a specified file path.

Method Summary

Methods inherited from class com.groupdocs.watermark.search.ImageSearchCriteria

accept, getFalseImages, getMaxDifference, getStream, getTrueImages, isSatisfiedBy, resetCache, setMaxDifference

Methods inherited from class com.groupdocs.watermark.search.PageSearchCriteria

getPages, setPages

Methods inherited from class com.groupdocs.watermark.search.SearchCriteria

and, not, or

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageDctHashSearchCriteria

public ImageDctHashSearchCriteria(InputStream stream)

Initializes a new instance of the ImageDctHashSearchCriteria class with a specified stream.

Parameters:

stream - The stream to load image from.

ImageDctHashSearchCriteria

public ImageDctHashSearchCriteria(com.aspose.ms.System.IO.Stream stream)

ImageDctHashSearchCriteria

public ImageDctHashSearchCriteria(String filePath)

Initializes a new instance of the ImageDctHashSearchCriteria class with a specified file path.

Parameters:

filePath - The file path to load image from.