public long CalculateRegionArea()
@property (nonatomic, assign, readonly) unsigned long regionArea
public long calculateRegionArea();
public:
int64 CalculateRegionArea();
def CalculateRegionArea(self):
The pixel count.
For more information, refer to Working with the Existing Region.
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 CalculateRegionAreaExample()
{
RasterCodecs codecs = new RasterCodecs();
string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
// Load the image
RasterImage image = codecs.Load(srcFileName);
// Add a region to the image
LeadRect rc = new LeadRect(image.Width / 3, image.Height / 3, image.Width / 3, image.Height / 3);
image.AddEllipseToRegion(null, rc, RasterRegionCombineMode.Set);
// Get the number of pixels in the region
long area = image.CalculateRegionArea();
Console.WriteLine("Number of pixels in region after a region is added: {0}", area);
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 calculateRegionAreaExample() {
final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images";
RasterCodecs codecs = new RasterCodecs();
String srcFileName = combine(LEAD_VARS_IMAGES_DIR, "Image1.cmp");
// Load the image
RasterImage image = codecs.load(srcFileName);
// Add a region to the image
LeadRect rc = new LeadRect(image.getWidth() / 3, image.getHeight() / 3, image.getWidth() / 3,
image.getHeight() / 3);
image.addEllipseToRegion(null, rc, RasterRegionCombineMode.SET);
assertTrue("Region added unsuccessfully", image.hasRegion());
// Get the number of pixels in the region
long area = image.calculateRegionArea();
System.out.printf("Number of pixels in region after a region is added: %s%n", area);
image.dispose();
codecs.dispose();
}
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