ExtractFrames Method

public void ExtractFrames( 
   string inputFileName,
   string outputFileName,
   List<int> frames
)

'Declaration
 
Public Sub ExtractFrames( _
   ByVal inputFileName As String, _
   ByVal outputFileName As String, _
   ByVal frames As List(Of Integer) _
) 

'Usage
 
Dim instance As Jpeg2000Engine
Dim inputFileName As String
Dim outputFileName As String
Dim frames As List(Of Integer)
 
instance.ExtractFrames(inputFileName, outputFileName, frames)

public:
void ExtractFrames( 
   String^ inputFileName,
   String^ outputFileName,
   List<int>^ frames
) 

Parameters

inputFileName

System.String containing the name of the JPEG 2000 file from which the frames are being extracted.

outputFileName

System.String containing the name of the JPEG 2000 file to be used to save the extracted frames. This file will contain only the extracted frames.

frames

Frame indices. A list of integers specifying the indices of the frames to be extracted from the input file. All indices should be 0-based.

This file contains only the extracted frame headers/code streams (not any obtained through the decompressing/recompressing process) so it saves processor time and memory.

This method is very suitable for server applications where multiple clients request specific frames of a JPEG 2000 file. Instead of decompressing and then recompressing the frames this method copies only the needed frame data, saving the data to a new JPEG 2000 file.

Target Platforms

Reference

Jpeg2000Engine Class
Jpeg2000Engine Members
AppendFrames
AppendGmlData
ExtractFramesMemory
ExtractFramesNativeMemory
FragmentJpxFile
ReadBox
ReadFrames
ReadGmlData
Compression Using LEAD and JPEG Formats
File Formats - JPEG And LEAD Compressed
Bitmaps In Memory And In Files
JPEG2000 File Comments
JPEG And LEAD File Comments
Programming with JPEG 2000 Features
JPEG 2000 Boxes