ReverseRegion Method

Summary

Flips the image region (left to right).

Syntax

Objective-C

C++/CLI

Java

Python

public void ReverseRegion()

- (BOOL)reverseRegion:(NSError **)error

public void reverseRegion();

public: 
void ReverseRegion();

def ReverseRegion(self):

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Core; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Dicom; 
using Leadtools.Drawing; 
using Leadtools.Controls; 
using Leadtools.Svg; 
 
 
public void FlipRegionExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
 
   string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); 
   string destFileName1 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_OriginalRegion.bmp"); 
   string destFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_OffsetRegion.bmp"); 
   string destFileName3 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_FlipRegion.bmp"); 
   string destFileName4 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_ReverseRegion.bmp"); 
 
   // Load the image 
   RasterImage image = codecs.Load(srcFileName); 
 
   // Add an ellipse inside a rectangle region to the image 
 
   LeadRect rc = new LeadRect(0, 0, image.Width / 3, image.Height / 6); 
   image.AddEllipseToRegion(null, rc, RasterRegionCombineMode.Set); 
 
   // Clone this image and run an image proccesing command on it 
   InvertCommand command = new InvertCommand(); 
 
   RasterImage imageWithRegion = image.Clone(); 
   command.Run(imageWithRegion); 
   codecs.Save(imageWithRegion, destFileName1, RasterImageFormat.Bmp, 24); 
   imageWithRegion.Dispose(); 
 
   // Offset the region 
   image.OffsetRegion(100, 50); 
   imageWithRegion = image.Clone(); 
   command.Run(imageWithRegion); 
   codecs.Save(imageWithRegion, destFileName2, RasterImageFormat.Bmp, 24); 
   imageWithRegion.Dispose(); 
 
   // Flip the region 
   image.FlipRegion(); 
   imageWithRegion = image.Clone(); 
   command.Run(imageWithRegion); 
   codecs.Save(imageWithRegion, destFileName3, RasterImageFormat.Bmp, 24); 
   imageWithRegion.Dispose(); 
 
   // Reverse the region 
   image.ReverseRegion(); 
   imageWithRegion = image.Clone(); 
   command.Run(imageWithRegion); 
   codecs.Save(imageWithRegion, destFileName4, RasterImageFormat.Bmp, 24); 
   imageWithRegion.Dispose(); 
 
   image.Dispose(); 
   codecs.Dispose(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

 
import java.io.File; 
import java.io.FileInputStream; 
import java.io.IOException; 
import java.io.InputStream; 
import java.util.ArrayList; 
import java.util.List; 
 
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.imageprocessing.core.*; 
import leadtools.svg.*; 
import leadtools.imageprocessing.CloneCommand; 
import leadtools.imageprocessing.FillCommand; 
import leadtools.imageprocessing.FlipCommand; 
import leadtools.imageprocessing.GrayscaleCommand; 
import leadtools.imageprocessing.color.InvertCommand; 
import leadtools.imageprocessing.color.PosterizeCommand; 
 
 
public void flipRegionExample() { 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   RasterCodecs codecs = new RasterCodecs(); 
   String srcFileName = combine(LEAD_VARS_IMAGES_DIR, "Image1.cmp"); 
   String destFileName1 = combine(LEAD_VARS_IMAGES_DIR, "Image1_OriginalRegion.bmp"); 
   String destFileName2 = combine(LEAD_VARS_IMAGES_DIR, "Image1_OffsetRegion.bmp"); 
   String destFileName3 = combine(LEAD_VARS_IMAGES_DIR, "Image1_FlipRegion.bmp"); 
   String destFileName4 = combine(LEAD_VARS_IMAGES_DIR, "Image1_ReverseRegion.bmp"); 
 
   // Load the image 
   RasterImage image = codecs.load(srcFileName); 
 
   // Add an ellipse inside a rectangle region to the image 
   LeadRect rc = new LeadRect(0, 0, image.getWidth() / 3, image.getHeight() / 6); 
   image.addEllipseToRegion(null, rc, RasterRegionCombineMode.SET); 
   assertTrue(rc.getWidth() == (image.getWidth() / 3)); 
 
   // Clone this image and run an image proccesing command on it 
   InvertCommand command = new InvertCommand(); 
   RasterImage imageWithRegion = image.clone(); 
   command.run(imageWithRegion); 
   codecs.save(imageWithRegion, destFileName1, RasterImageFormat.BMP, 24); 
   imageWithRegion.dispose(); 
 
   assertTrue("file unsuccessfully saved to " + destFileName1, (new File(destFileName1)).exists()); 
   System.out.printf("File saved successfully to %s%n", destFileName1); 
 
   // Offset the region 
   image.offsetRegion(100, 50); 
   imageWithRegion = image.clone(); 
   command.run(imageWithRegion); 
   codecs.save(imageWithRegion, destFileName2, RasterImageFormat.BMP, 24); 
   imageWithRegion.dispose(); 
 
   assertTrue("file unsuccessfully saved to " + destFileName2, (new File(destFileName2)).exists()); 
   System.out.printf("File saved successfully to %s%n", destFileName2); 
 
   // Flip the region 
   image.flipRegion(); 
   imageWithRegion = image.clone(); 
   command.run(imageWithRegion); 
   codecs.save(imageWithRegion, destFileName3, RasterImageFormat.BMP, 24); 
   imageWithRegion.dispose(); 
 
   assertTrue("file unsuccessfully saved to " + destFileName3, (new File(destFileName3)).exists()); 
   System.out.printf("File saved successfully to %s%n", destFileName3); 
 
   // Reverse the region 
   image.reverseRegion(); 
   imageWithRegion = image.clone(); 
   command.run(imageWithRegion); 
   codecs.save(imageWithRegion, destFileName4, RasterImageFormat.BMP, 24); 
   imageWithRegion.dispose(); 
 
   assertTrue("file unsuccessfully saved to " + destFileName4, (new File(destFileName4)).exists()); 
   System.out.printf("File saved successfully to %s%n", destFileName4); 
 
   // Clean up 
   image.dispose(); 
   codecs.dispose(); 
}

Requirements

Target Platforms

Reference

RasterImage Class

RasterImage Members

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Help Version 23.0.2024.2.29

Leadtools Assembly

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Leadtools Namespace

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