Save(RasterCodecs,Stream,RasterImage,Jpeg2000FileFormat,int,int) Method

Summary

Saves a Leadtools.RasterImage to a stream in any of the supported JPEG 2000 file formats. This method is available in the Document/Medical Toolkits.

Syntax

C++/CLI

Python

public void Save( 
   RasterCodecs codecs, 
   Stream stream, 
   RasterImage image, 
   Jpeg2000FileFormat format, 
   int bitsPerPixel, 
   int qualityFactor 
)

public: 
void Save(  
   RasterCodecs^ codecs, 
   Stream^ stream, 
   RasterImage^ image, 
   Jpeg2000FileFormat format, 
   int bitsPerPixel, 
   int qualityFactor 
)

def Save(self,codecs,stream,image,format,bitsPerPixel,qualityFactor):

Parameters

codecs
The Leadtools.Codecs.RasterCodecs object.

stream
A System.IO.Stream where the image data will be saved.

image
The Leadtools.RasterImage object that holds the image data.

format
Output JPEG 2000 file format. For valid values, refer to Jpeg2000FileFormat.

bitsPerPixel
Resulting file's pixel depth. Possible values are: 8, 12, 16, 24, 32, 48, 64, and 0. A value of zero [0] means that each image will be saved with its bits per pixel value, if that value is equal to one of the possible values (8, 12, 16, 24, 32, 48, or 64).

qualityFactor
Quality factor. This value determines the degree of loss in the compression process. Possible values are from 0 to 255. A value of zero (0) represents lossless compression. Values between 1 and 255 are interpreted as a compression ratio.

Remarks

All engine boxes that are currently set will also be saved in this file.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Jpeg2000; 
 
 
public void SaveStreamExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   FileStream fs = File.OpenRead(Path.Combine(LEAD_VARS.ImagesDir, "image1.jp2")); 
 
   // Load a JPEG 2000 image 
   Jpeg2000Engine engine = new Jpeg2000Engine(); 
   RasterImage image = engine.Load(codecs, fs, 0, CodecsLoadByteOrder.BgrOrGray); 
 
   List<XmlBox> xmlBoxes = engine.GetBoxes<XmlBox>(Jpeg2000FileFormat.LeadJp2); 
   ResolutionBox resBox = (ResolutionBox)engine.GetBox(Jpeg2000FileFormat.LeadJp2, Jpeg2000BoxType.ResolutionBox); 
 
   engine.ResetEngineBoxes(); 
   //Set the JPX engine's XML box 
   engine.SetBoxes(Jpeg2000FileFormat.LeadJpx, xmlBoxes); 
   engine.SetBox(Jpeg2000FileFormat.LeadJpx, resBox); 
   fs.Close(); 
   fs = File.Create(Path.Combine(LEAD_VARS.ImagesDir, "Test.jpx")); 
   //Save the image in JPX file format 
   engine.Save(codecs, fs, image, Jpeg2000FileFormat.LeadJpx, 24, 5); 
   //Append Intellectual Property Rights box 
   String copyRights = ("Copyright (c) 1991-2022 by LEAD Technologies, Inc. All Rights Reserved."); 
   IprBox ipr = new IprBox(); 
   ipr.Data = Encoding.ASCII.GetBytes(copyRights); 
   engine.AppendBox(fs, ipr); 
 
   // Clean up         
   engine.Dispose(); 
   image.Dispose(); 
   codecs.Dispose(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}