Image Property

Summary

Gets or sets the RasterImage object containing the loaded overlay image.

Syntax

Objective-C

C++/CLI

Java

Python

public RasterImage Image { get; set; }

@property (nonatomic, strong, nullable) LTRasterImage *image;

public RasterImage getImage() 
public void setImage(RasterImage value)

public: 
property RasterImage^ Image { 
   RasterImage^ get(); 
   void set (    RasterImage^ ); 
}

Image # get and set (CodecsOverlayData)

Property Value

The RasterImage object containing the loaded overlay image. If the Info property of this CodecsOverlayData object is false, you need to load the overlay image into this property. Otherwise ignore. You do not need to call Dispose on this image. LEADTOOLS will dispose it for you once its done overlaying it on the image. The default value is null.

Remarks

This property is output.

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Svg; 
 
 
void PtokaOverlayExample(string ptokaFileName, string ptokaFilesPath) 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
 
   // Set up the private variables used in the callback 
   myCodecs = codecs; 
   myPtokaFilesPath = ptokaFilesPath; 
 
   // Set the overlay callback 
   codecs.StartOverlay(CodecsOverlayCallback, CodecsOverlayCallbackMode.CallLoad); 
 
   // Load the PTOKA file 
   RasterImage image = codecs.Load(ptokaFileName); 
 
   // Stop the overlay by resetting the old callback. 
   codecs.StopOverlay(); 
 
   // Save the image as TIFF 
   string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "PtokaOverlay.tif"); 
   codecs.Save(image, destFileName, RasterImageFormat.Tif, 1); 
   image.Dispose(); 
 
   // Clean up 
   codecs.Dispose(); 
} 
 
RasterCodecs myCodecs; 
string myPtokaFilesPath; 
 
void CodecsOverlayCallback(CodecsOverlayData data) 
{ 
   // Show overlay information 
   Debug.WriteLine("File: {0}", data.FileName); 
   Debug.WriteLine("Page Number: {0}", data.PageNumber); 
   Debug.WriteLine("Info: {0}", data.Info); 
 
   // Construct the overlay file name 
   string overlayFileName = Path.Combine(myPtokaFilesPath, data.FileName); 
 
   if (data.Info) 
   { 
      // Info, we only need to fill in the .InfoXXX members of the data 
      CodecsImageInfo imageInfo = myCodecs.GetInformation(overlayFileName, false); 
      data.InfoWidth = imageInfo.Width; 
      data.InfoHeight = imageInfo.Height; 
      data.InfoXResolution = imageInfo.XResolution; 
      data.InfoYResolution = imageInfo.YResolution; 
   } 
   else 
   { 
      // We need to load the overlay image into the .Image member 
      data.Image = myCodecs.Load(overlayFileName); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

 
import java.io.*; 
import java.net.*; 
import java.nio.file.Paths; 
import java.util.*; 
import java.time.Instant; 
import java.time.Duration; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.codecs.RasterCodecs.FeedCallbackThunk; 
import leadtools.drawing.internal.*; 
import leadtools.imageprocessing.*; 
import leadtools.imageprocessing.color.ChangeIntensityCommand; 
import leadtools.svg.*; 
 
 
public void ptokaOverlayExample() { 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   String ptokaFileName = combine(LEAD_VARS_IMAGES_DIR, "jbig.jbg"); 
   RasterCodecs codecs = new RasterCodecs(); 
 
   // Set up the private variables used in the callback 
   myCodecs = codecs; 
   myPtokaFilesPath = LEAD_VARS_IMAGES_DIR; 
 
   // Set the overlay callback 
   codecs.startOverlay(codecsOverlayCallback, CodecsOverlayCallbackMode.CALL_LOAD); 
 
   // Load the PTOKA file 
   RasterImage image = codecs.load(ptokaFileName); 
 
   // Stop the overlay by resetting the old callback. 
   codecs.stopOverlay(); 
 
   // Save the image as TIFF 
   String destFileName = combine(LEAD_VARS_IMAGES_DIR, "PtokaOverlay.tif"); 
   codecs.save(image, destFileName, RasterImageFormat.TIF, 1); 
   image.dispose(); 
 
   // Clean up 
   codecs.dispose(); 
} 
 
RasterCodecs myCodecs; 
String myPtokaFilesPath; 
CodecsOverlayListener codecsOverlayCallback = new CodecsOverlayListener() { 
 
   @Override 
   public void onOverlay(CodecsOverlayData data) { 
      // Show overlay information 
      System.out.println("File: " + data.getFileName()); 
      System.out.println("Page Number: " + data.getPageNumber()); 
      System.out.println("Info: " + data.getInfo()); 
 
      // Construct the overlay file name 
      String overlayFileName = combine(myPtokaFilesPath, data.getFileName()); 
 
      if (data.getInfo()) { 
         // Info, we only need to fill in the .InfoXXX members of the data 
         CodecsImageInfo imageInfo = myCodecs.getInformation(overlayFileName, false); 
         data.setInfoWidth(imageInfo.getWidth()); 
         data.setInfoHeight(imageInfo.getHeight()); 
         data.setInfoXResolution(imageInfo.getXResolution()); 
         data.setInfoYResolution(imageInfo.getYResolution()); 
      } else { 
         // We need to load the overlay image into the .Image member 
         data.setImage(myCodecs.load(overlayFileName)); 
      } 
   } 
 
};

Requirements

Target Platforms

Reference

CodecsOverlayData Class

CodecsOverlayData Members

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