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XResolution Property

Summary
Gets or sets the horizontal resolution (DPI).
Syntax
C#
Objective-C
C++/CLI
Java
Python
public int XResolution { get; set; } 
@property (nonatomic, assign) NSInteger xResolution; 
public int getXResolution() 
public void setXResolution(int value) 
public: 
property int XResolution { 
   int get(); 
   void set (    int ); 
} 
XResolution # get and set (CodecsLoadOptions) 

Property Value

The default value is 150

The horizontal resolution (DPI).

Remarks

Use this property to set the X resolution member of the RasterImage when the file format being loaded either does not support resolution or the file has no value stored.

Example
C#
Java
using Leadtools; 
using Leadtools.Codecs; 
 
using Leadtools.ImageProcessing.Core; 
using Leadtools.Pdf; 
 
 
RasterImage image; 
private void Codecs_LoadImage(object sender, CodecsLoadImageEventArgs e) 
{ 
   //copy each row of data into our manually allocated RasterImage 
   image.SetRow(e.Row, e.Buffer.Data, image.BytesPerLine * e.Lines); 
} 
 
public void AllocateImageExample() 
{ 
   string fileName = Path.Combine(LEAD_VARS.ImagesDir, "image1.cmp"); 
   RasterCodecs codecs = new RasterCodecs(); 
   CodecsImageInfo info = codecs.GetInformation(fileName, false); 
   int size = info.Width * info.Height * info.BitsPerPixel; 
   IntPtr data = Marshal.AllocHGlobal(size); 
 
   image = new RasterImage(RasterMemoryFlags.User, info.Width, info.Height, info.BitsPerPixel, RasterByteOrder.Bgr, info.ViewPerspective, null, data, size); 
   image.Access(); 
   //Setting the loading options. 
   //Do NOT allow LEADTOOLS to allocate the image data 
   codecs.Options.Load.AllocateImage = false; // CodecsOptions & CodecsLoadOptions reference 
   codecs.Options.Load.StoreDataInImage = false; 
   //keeping the loaded image data compressed in memory. 
   codecs.Options.Load.Compressed = true; 
   codecs.Options.Load.DiskMemory = false; 
   //force a palletized image to be dithered to the LEAD fixed palette. 
   codecs.Options.Load.FixedPalette = true; 
   //we know the format of the file 
   codecs.Options.Load.Format = RasterImageFormat.Cmp; 
   //disable loading metadata markers if present in the file, false to ignore them. 
   codecs.Options.Load.Markers = false; 
   codecs.Options.Load.NoDiskMemory = true; 
   codecs.Options.Load.NoInterlace = false; 
   codecs.Options.Load.NoTiledMemory = true; 
   codecs.Options.Load.Passes = 0; 
   //ignore the view perspective stored in the file. 
   codecs.Options.Load.Rotated = false; 
   //set negative pixel values to 0. 
   codecs.Options.Load.Signed = false; 
   codecs.Options.Load.InitAlpha = true; 
   //load super-compressed in memory 
   codecs.Options.Load.SuperCompressed = true; 
   codecs.Options.Load.TiledMemory = false; 
   codecs.Options.Load.XResolution = 350; 
   codecs.Options.Load.YResolution = 350; 
   //allow loading corrupted images 
   codecs.Options.Load.LoadCorrupted = true; 
 
   codecs.LoadImage += Codecs_LoadImage; 
   codecs.Load(fileName); 
   codecs.LoadImage -= Codecs_LoadImage; 
   image.Release(); 
 
   //Meta file's comments will be saved. 
   //CodecsSaveOptions reference 
   codecs.Options.Save.Comments = true; 
   codecs.Options.Save.FixedPalette = true; 
   codecs.Options.Save.GeoKeys = false; 
   //Tiff file output will be gray. 
   codecs.Options.Save.GrayOutput = true; 
   //Meta file's markers will be saved. 
   codecs.Options.Save.Markers = true; 
   codecs.Options.Save.MotorolaOrder = false; 
   codecs.Options.Save.OptimizedPalette = true; 
   codecs.Options.Save.Password = "LEADTOOLS"; 
 
   LeadSize[] resolutions = new LeadSize[1]; 
   resolutions[0].Width = 350; 
   resolutions[0].Height = 350; 
 
   codecs.Options.Save.GetResolutions(); 
   codecs.Options.Save.SetResolutions(resolutions); 
   codecs.Options.Save.Reset(); 
 
   //Meta file's tags will be saved. 
   codecs.Options.Save.Tags = true; 
   codecs.Options.Save.UseImageDitheringMethod = true; 
 
 
 
   codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "allocate_image.tif"), RasterImageFormat.Tif, 8, 1, image.PageCount, 1, CodecsSavePageMode.Overwrite); 
 
   // Finalize cannot be called directly, it is invoked automatically. 
   // To clean up before exiting, use Dispose 
   image.Dispose(); 
   Marshal.FreeHGlobal(data); 
   codecs.Dispose(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
} 
 
import java.io.File; 
import java.io.IOException; 
import java.net.URI; 
import java.net.URISyntaxException; 
import java.nio.file.Paths; 
 
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.MinMaxBitsCommand; 
 
 
RasterImage image; 
 
public void codecsAllocateImageExample() { 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   String fileName = combine(LEAD_VARS_IMAGES_DIR, "barcode1.tif"); 
   RasterCodecs codecs = new RasterCodecs(); 
   CodecsImageInfo info = codecs.getInformation(fileName, false); 
   byte[] data = new byte[1]; 
   image = new RasterImage(10, info.getWidth(), info.getHeight(), info.getBitsPerPixel(), info.getOrder(), 
         info.getViewPerspective(), info.getPalette(), data, data.length); 
   image.access(); 
 
   // Setting the loading options. 
   // Do NOT allow LEADTOOLS to allocate the image data 
   codecs.getOptions().getLoad().setAllocateImage(false);// CodecsOptions & CodecsLoadOptions reference 
   codecs.getOptions().getLoad().setStoreDataInImage(false); 
 
   // keeping the loaded image data compressed in memory. 
   codecs.getOptions().getLoad().setCompressed(true); 
   codecs.getOptions().getLoad().setDiskMemory(false); 
 
   // force a palletized image to be dithered to the LEAD fixed palette. 
   codecs.getOptions().getLoad().setFixedPalette(true); 
 
   // we know the format of the file 
   codecs.getOptions().getLoad().setFormat(RasterImageFormat.CMP); 
 
   // disable loading metadata markers if present in the file, false to ignore 
   // them. 
   codecs.getOptions().getLoad().setMarkers(false); 
   codecs.getOptions().getLoad().setNoDiskMemory(true); 
   codecs.getOptions().getLoad().setNoInterlace(false); 
   codecs.getOptions().getLoad().setNoTiledMemory(true); 
   codecs.getOptions().getLoad().setPasses(0); 
 
   // ignore the view perspective stored in the file. 
   codecs.getOptions().getLoad().setRotated(false); 
 
   // set negative pixel values to 0. 
   codecs.getOptions().getLoad().setSigned(false); 
   codecs.getOptions().getLoad().setInitAlpha(true); 
 
   // load super-compressed in memory 
   codecs.getOptions().getLoad().setSuperCompressed(true); 
   codecs.getOptions().getLoad().setTiledMemory(false); 
   codecs.getOptions().getLoad().setXResolution(350); 
   codecs.getOptions().getLoad().setYResolution(350); 
 
   // allow loading corrupted images 
   codecs.getOptions().getLoad().setLoadCorrupted(true); 
 
   // Created this method below 
   codecs.addLoadImageListener(loadListener); 
   codecs.load(fileName); 
   codecs.removeLoadImageListener(loadListener); 
   image.release(); 
 
   // Meta file's comments will be saved. 
   // CodecsSaveOptions reference 
   codecs.getOptions().getSave().setComments(true); 
   codecs.getOptions().getSave().setFixedPalette(true); 
   codecs.getOptions().getSave().setGeoKeys(false); 
 
   // tiff file output will be gray. 
   codecs.getOptions().getSave().setGrayOutput(true); 
 
   // Meta file's markers will be saved. 
   codecs.getOptions().getSave().setMarkers(true); 
   codecs.getOptions().getSave().setMotorolaOrder(false); 
   codecs.getOptions().getSave().setOptimizedPalette(true); 
   codecs.getOptions().getSave().setPassword("LEADTOOLS"); 
   LeadSize[] resolutions = new LeadSize[1]; 
   resolutions[0] = new LeadSize(); 
   resolutions[0].setWidth(350); 
   resolutions[0].setHeight(350); 
   codecs.getOptions().getSave().getResolutions(); 
   codecs.getOptions().getSave().setResolutions(resolutions); 
   codecs.getOptions().getSave().reset(); 
 
   // Meta file's tags will be saved. 
   codecs.getOptions().getSave().setTags(true); 
   codecs.getOptions().getSave().setUseImageDitheringMethod(true); 
 
   String outputFileName = combine(LEAD_VARS_IMAGES_DIR, "allocate_image.tif"); 
   codecs.save(image, outputFileName, RasterImageFormat.TIF, 8, 1, image.getPageCount(), 1, 
         CodecsSavePageMode.OVERWRITE); 
 
   assertTrue("File unsuccessfully saved to " + outputFileName, (new File(outputFileName)).exists()); 
   System.out.printf("File successfully saved to %s%n", outputFileName); 
 
   // Finalize cannot be called directly, it is invoked automatically. 
   // To clean up before exiting, use Dispose 
   image.dispose(); 
   data = null; 
   codecs.dispose(); 
} 
 
CodecsLoadImageListener loadListener = new CodecsLoadImageListener() { 
 
   @Override 
   public void onLoadImage(CodecsLoadImageEvent e) { 
      image.setRow(e.getRow(), e.getBuffer().getData(), image.getBytesPerLine() * e.getLines()); 
   } 
 
}; 
Requirements

Target Platforms

Help Version 23.0.2024.2.29
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Leadtools.Codecs Assembly

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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.