ImageHeight Property

Summary

Gets the height of this RasterImage in pixels, taking ViewPerspective into account.

Syntax

Objective-C

C++/CLI

Java

Python

public int ImageHeight { get; }

@property (nonatomic, assign, readonly) NSInteger imageHeight

public int getImageHeight();

public: 
property int ImageHeight { 
   int get(); 
}

ImageHeight # get  (RasterImage)

Property Value

The height of this RasterImage in pixels, taking ViewPerspective into account.

Remarks

Use Height to get the actual number of scanlines of image data.

For more information refer to Accounting For View Perspective.

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 RasterImageExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
 
   string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); 
   string destFileName1 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_RasterImage1.bmp"); 
   string destFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_RasterImage2.bmp"); 
 
   // Load the image 
   RasterImage srcImage = codecs.Load(srcFileName); 
 
   // Creates a new image in memory with same dimensions as the source image 
   RasterImage destImage = new RasterImage( 
      RasterMemoryFlags.Conventional, 
      srcImage.Width, 
      srcImage.Height, 
      srcImage.BitsPerPixel, 
      srcImage.Order, 
      srcImage.ViewPerspective, 
      srcImage.GetPalette(), 
      IntPtr.Zero, 
      0); 
 
   // Copy the data from the source image to the destination image 
   srcImage.Access(); 
   destImage.Access(); 
 
   byte[] buffer = new byte[srcImage.BytesPerLine]; 
 
   for (int y = 0; y < srcImage.Height; y++) 
   { 
      srcImage.GetRow(y, buffer, 0, buffer.Length); 
      destImage.SetRow(y, buffer, 0, buffer.Length); 
   } 
 
   destImage.Release(); 
   srcImage.Release(); 
 
   // We do not need the source image anymore 
   srcImage.Dispose(); 
 
   // save the destination image 
   codecs.Save(destImage, destFileName1, RasterImageFormat.Bmp, 24); 
 
   // perform image processing on the image 
 
   FlipCommand flipCmd = new FlipCommand(); 
   flipCmd.Horizontal = false; 
   flipCmd.Run(destImage); 
 
   // save it 
   codecs.Save(destImage, destFileName2, RasterImageFormat.Bmp, 24); 
 
   // Clean up 
   destImage.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 rasterImageExample() { 
   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_RasterImage1.bmp"); 
   String destFileName2 = combine(LEAD_VARS_IMAGES_DIR, "Image1_RasterImage2.bmp"); 
 
   // Load the image 
   RasterImage srcImage = codecs.load(srcFileName); 
 
   // Creates a new image in memory with same dimensions as the source image 
   byte[] userData = new byte[0]; 
   RasterImage destImage = new RasterImage(RasterMemoryFlags.CONVENTIONAL.getValue(), srcImage.getWidth(), 
         srcImage.getHeight(), 
         srcImage.getBitsPerPixel(), srcImage.getOrder(), srcImage.getViewPerspective(), srcImage.getPalette(), 
         userData, 0); 
 
   // Copy the data from the source image to the destination image 
   srcImage.access(); 
   destImage.access(); 
 
   byte[] buffer = new byte[srcImage.getBytesPerLine()]; 
 
   for (int y = 0; y < srcImage.getHeight(); y++) { 
      srcImage.getRow(y, buffer, 0, buffer.length); 
      destImage.setRow(y, buffer, 0, buffer.length); 
   } 
 
   destImage.release(); 
   srcImage.release(); 
 
   // We do not need the source image anymore 
   srcImage.dispose(); 
 
   // Save the destination image 
   codecs.save(destImage, destFileName1, RasterImageFormat.BMP, 24); 
 
   // Perform image processing on the image 
   FlipCommand flipCmd = new FlipCommand(); 
   flipCmd.setHorizontal(false); 
   flipCmd.run(destImage); 
 
   // Save it 
   codecs.save(destImage, destFileName2, RasterImageFormat.BMP, 24); 
 
   // Clean up 
   destImage.dispose(); 
   codecs.dispose(); 
 
   assertTrue("file unsuccessfully saved to " + destFileName2, (new File(destFileName2)).exists()); 
   System.out.printf("File saved successfully to %s%n", destFileName2); 
}

Requirements

Target Platforms

Reference

RasterImage Class

RasterImage Members

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