Loads the specified rectangle from the specified image stream using default options.
public Leadtools.RasterImage Load(
Stream stream,
Leadtools.LeadRect tile
)
Public Overloads Function Load( _
ByVal stream As Stream, _
ByVal tile As Leadtools.LeadRect _
) As Leadtools.RasterImage
public Leadtools.RasterImage Load(
Stream stream,
Leadtools.LeadRect tile
)
function Leadtools.Codecs.RasterCodecs.Load(Stream,LeadRect)(
stream ,
tile
)
public:
Leadtools.RasterImage^ Load(
Stream^ stream,
Leadtools.LeadRect tile
)
stream
A Stream containing the image data to load.
tile
A LeadRect describing the tile/area of the image to load.
The RasterImage object that this method loads.
This method loads a section of an image stream (any format). The section begins is defined by tile rectangle.
LEADTOOLS will attempt to load corrupted files so you can see at least a portion of the image. For these images, the load methods succeed, but LoadStatus will return an error code.
Use the CodecsLoadOptions class to set up other load option parameters before calling this method.
Support for 12 and 16-bit grayscale, and 48 and 64-bit color images is only available in the Document/Medical Imaging editions.
For supported formats, refer to Summary of All Supported Image File Formats.
LEADTOOLS loads all PDF files as Raster PDF uncompressed RasterImageFormat.RasPdf, regardless of the compression and color space used when saving the file.
The CodecsLoadOptions.AllPages property controls whether RasterCodecs will try to load all pages or just the first page if the image data contains multiple pages.
This example will create a rectangle area from a stream containing image data.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Color;
using Leadtools.Svg;
using LeadtoolsExamples.Common;
public void LoadTileStream1Example()
{
RasterCodecs codecs = new RasterCodecs();
string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_LoadTileStream1.bmp");
FileStream fs = File.OpenRead(srcFileName);
// Get the image dimension
CodecsImageInfo info = codecs.GetInformation(fs, false);
// Load the lower right corner of the image
LeadRect rc = new LeadRect(
info.Width / 2,
info.Height / 2,
info.Width / 2,
info.Height / 2);
RasterImage image = codecs.Load(fs, rc);
fs.Close();
Debug.Assert(image.Width == (info.Width / 2));
Debug.Assert(image.Height == (info.Height / 2));
// Save this image back to disk
codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24);
image.Dispose();
// Clean up
codecs.Dispose();
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.ImageProcessing.Color
Imports Leadtools.Drawing
Imports Leadtools.Svg
Public Sub LoadTileStream1Example()
Dim codecs As RasterCodecs = New RasterCodecs()
Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
Dim destFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_LoadTileStream1.bmp")
Dim fs As FileStream = File.OpenRead(srcFileName)
' Get the image dimension
Dim info As CodecsImageInfo = codecs.GetInformation(fs, False)
' Load the lower right corner of the image
Dim rc As LeadRect = New LeadRect(info.Width \ 2, info.Height \ 2, info.Width \ 2, info.Height \ 2)
Dim image As RasterImage = codecs.Load(fs, rc)
fs.Close()
Debug.Assert(image.Width = (info.Width \ 2))
Debug.Assert(image.Height = (info.Height \ 2))
' Save this image back to disk
codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24)
image.Dispose()
' Clean up
codecs.Dispose()
End Sub
Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
using Leadtools;
using Leadtools.Codecs;
using Leadtools.Examples;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Color;
using Leadtools.Windows.Media;
public void LoadTileStream1Example(Stream inStreamCmp, Stream outStreamBmp)
{
RasterCodecs codecs = new RasterCodecs();
// Get the image dimension
CodecsImageInfo info = codecs.GetInformation(inStreamCmp, false);
// Load the lower right corner of the image
LeadRect rc = new LeadRect(info.Width / 2, info.Height / 2, info.Width / 2, info.Height / 2);
RasterImage image = codecs.Load(inStreamCmp, rc);
Debug.Assert(image.Width == (info.Width / 2));
Debug.Assert(image.Height == (info.Height / 2));
// Save this image back to disk
codecs.Save(image, outStreamBmp, RasterImageFormat.Bmp, 24);
image.Dispose();
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.ImageProcessing.Color
Imports Leadtools.Windows.Media
Public Sub LoadTileStream1Example(ByVal inStreamCmp As Stream, ByVal outStreamBmp As Stream)
Dim codecs As RasterCodecs = New RasterCodecs()
' Get the image dimension
Dim info As CodecsImageInfo = codecs.GetInformation(inStreamCmp, False)
' Load the lower right corner of the image
Dim rc As LeadRect = New LeadRect(info.Width / 2, info.Height / 2, info.Width / 2, info.Height / 2)
Dim image As RasterImage = codecs.Load(inStreamCmp, rc)
Debug.Assert(image.Width = (info.Width / 2))
Debug.Assert(image.Height = (info.Height / 2))
' Save this image back to disk
codecs.Save(image, outStreamBmp, RasterImageFormat.Bmp, 24)
image.Dispose()
End Sub
![]() |
Products |
Support |
Feedback: Load(Stream,LeadRect) Method - Leadtools.Codecs |
Introduction |
Help Version 19.0.2017.6.16
|
Raster .NET | C API | C++ Class Library | JavaScript HTML5
Document .NET | C API | C++ Class Library | JavaScript HTML5
Medical .NET | C API | C++ Class Library | JavaScript HTML5
Medical Web Viewer .NET
Your email has been sent to support! Someone should be in touch! If your matter is urgent please come back into chat.
Chat Hours:
Monday - Friday, 8:30am to 6pm ET
Thank you for your feedback!
Please fill out the form again to start a new chat.
All agents are currently offline.
Chat Hours:
Monday - Friday
8:30AM - 6PM EST
To contact us please fill out this form and we will contact you via email.