public bool Signed { get; set; }
@property (nonatomic, assign) BOOL isSigned;
public boolean getSigned()
public void setSigned(boolean value)
Signed # get and set (CodecsLoadOptions)
Value | Description |
---|---|
true | To load and keep negative pixel values. The default value is true. |
false | To set negative pixel values to 0. |
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());
}
};
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