SourceImage Property

Summary

Gets the source image used in this CloneCommand

Syntax

Objective-C

C++/CLI

Java

Python

public RasterImage SourceImage { get; }

@property (nonatomic, strong, readonly, nullable) LTRasterImage *sourceImage

public RasterImage getSourceImage()

public: 
property RasterImage^ SourceImage { 
   RasterImage^ get(); 
}

SourceImage # get  (CloneCommand)

Property Value

A RasterImage object that references the source image used in this command (the image passed to the RasterCommand.Run method).

Remarks

If the source image (the image passed to the RasterCommand.Run method) contains multiple pages, then you can use the AllPages property to control whether the CloneCommand will create a copy of the current active page or all the pages in the image.

Note that when the source image has multiple pages and the value of AllPages was set to true, then the RasterCommand.Progress event will fire from 0 to 100 for each page processed. If an overall progress percentage is desired, then you can inspect the RasterImage.Page and RasterImage.PageCount properties of the SourceImage property to calculate this value as shown in the AllPages example.

The default value of this property is false.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
 
 
private void CloneAllTest() 
{ 
	RasterCodecs codecs = new RasterCodecs(); 
 
	// Create a multi-page image for testing purposes 
	RasterImage image = null; 
	for (int i = 1; i <= 4; i++) 
	{ 
		RasterImage pageImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "OCR" + i.ToString() + ".tif")); 
		if (image == null) 
			image = pageImage; 
		else 
		{ 
			image.AddPage(pageImage); 
			pageImage.Dispose(); 
		} 
	} 
 
	Console.WriteLine("Input image has {0} pages", image.PageCount); 
 
	// Clone all pages 
	CloneCommand cloneCmd = new CloneCommand(); 
	cloneCmd.AllPages = true; 
	cloneCmd.Progress += new EventHandler<RasterCommandProgressEventArgs>(cloneCmd_Progress); 
	cloneCmd.Run(image); 
	cloneCmd.Progress -= new EventHandler<RasterCommandProgressEventArgs>(cloneCmd_Progress); 
 
	RasterImage destinationImage = cloneCmd.DestinationImage; 
	Console.WriteLine("Cloned image has {0} pages", destinationImage.PageCount); 
 
	destinationImage.Dispose(); 
	image.Dispose(); 
	codecs.Dispose(); 
} 
 
private void cloneCmd_Progress(object sender, RasterCommandProgressEventArgs e) 
{ 
	// By using the SourceImage property of the CloneCommand we can find out 
	// the progress for the current page as well as the overall 
	CloneCommand cmd = sender as CloneCommand; 
 
	int overallPercent; 
 
	if (cmd.AllPages && cmd.SourceImage.PageCount > 1) 
	{ 
		// For multiple-pages, the command will fire the Progress event from 0 to 100 for each page 
		// Use the source image Page property to find out where we are in overall completetion 
		overallPercent = ((cmd.SourceImage.Page - 1) * 100 + e.Percent) / cmd.SourceImage.PageCount; 
	} 
	else 
	{ 
		// Otherwise, the percent is the same as the current page 
		overallPercent = e.Percent; 
	} 
 
	Console.WriteLine("Current page completion: {0} of {1} - {2}% - Overall image completion {3}%", cmd.SourceImage.Page, cmd.SourceImage.PageCount, e.Percent, overallPercent); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

CloneCommand Class

CloneCommand Members

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Help Version 22.0.2023.5.16

Leadtools Assembly

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Leadtools Namespace

Leadtools.ImageProcessing Namespace

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