Leadtools.Codecs Namespace > RasterCodecs Class > Load Method : Load(Uri,Int32,CodecsLoadByteOrder,Int32,Int32) Method |
Resulting image pixel depth. Valid values are:
Value | Meaning |
---|---|
0 | Keep the original file's pixel depth (Do not convert). |
1 to 8 | The specified bits per pixel in the resulting image. |
12 | 12 bits per pixel in the resulting image. |
16 | 16 bits per pixel in the resulting image. |
24 | 24 bits per pixel in the resulting image. |
32 | 32 bits per pixel in the resulting image. |
48 | 48 bits per pixel in the resulting image. |
64 | 64 bits per pixel in the resulting image. |
Color order for 16-, 24-, 32-, 48-, and 64-bit images. If the resulting image is less than 16 bits per pixel, this will have no effect since palletized images have no order. The following are valid values.
Value | Meaning |
---|---|
CodecsLoadByteOrder.Rgb | Red, green, and blue color order in memory |
CodecsLoadByteOrder.Bgr | Blue, green, and red color order in memory |
CodecsLoadByteOrder.Gray | 12 or 16-bit grayscale image. 12 and 16-bit grayscale images are only supported in the Document/Medical Imaging editions. |
CodecsLoadByteOrder.RgbOrGray | Load the image as red, green, blue OR as a 12 or 16-bit grayscale image. 12 and 16-bit grayscale images are supported in the Document/Medical Imaging editions |
CodecsLoadByteOrder.BgrOrGray | Load the image as blue, green, red OR as a 12 or 16-bit grayscale image. 12 and 16-bit grayscale images are supported in the Document/Medical Imaging editions |
CodecsLoadByteOrder.Romm | ROMM order. ROMM only supports 24 and 48-bit images |
CodecsLoadByteOrder.BgrOrGrayOrRomm | Load the image as red, green, blue OR as a 12 or 16-bit grayscale image OR as ROMM. 12 and 16-bit grayscale images are supported in the Document/Medical Imaging editions only. ROMM only supports 24 and 48-bit color images. |
public RasterImage Load( Uri uri, int bitsPerPixel, CodecsLoadByteOrder order, int firstPage, int lastPage )
'Declaration Public Overloads Function Load( _ ByVal uri As Uri, _ ByVal bitsPerPixel As Integer, _ ByVal order As CodecsLoadByteOrder, _ ByVal firstPage As Integer, _ ByVal lastPage As Integer _ ) As RasterImage
'Usage Dim instance As RasterCodecs Dim uri As Uri Dim bitsPerPixel As Integer Dim order As CodecsLoadByteOrder Dim firstPage As Integer Dim lastPage As Integer Dim value As RasterImage value = instance.Load(uri, bitsPerPixel, order, firstPage, lastPage)
public RasterImage Load( Uri uri, int bitsPerPixel, CodecsLoadByteOrder order, int firstPage, int lastPage )
function Leadtools.Codecs.RasterCodecs.Load(Uri,Int32,CodecsLoadByteOrder,Int32,Int32)( uri , bitsPerPixel , order , firstPage , lastPage )
public: RasterImage^ Load( Uri^ uri, int bitsPerPixel, CodecsLoadByteOrder order, int firstPage, int lastPage )
Resulting image pixel depth. Valid values are:
Value | Meaning |
---|---|
0 | Keep the original file's pixel depth (Do not convert). |
1 to 8 | The specified bits per pixel in the resulting image. |
12 | 12 bits per pixel in the resulting image. |
16 | 16 bits per pixel in the resulting image. |
24 | 24 bits per pixel in the resulting image. |
32 | 32 bits per pixel in the resulting image. |
48 | 48 bits per pixel in the resulting image. |
64 | 64 bits per pixel in the resulting image. |
Color order for 16-, 24-, 32-, 48-, and 64-bit images. If the resulting image is less than 16 bits per pixel, this will have no effect since palletized images have no order. The following are valid values.
Value | Meaning |
---|---|
CodecsLoadByteOrder.Rgb | Red, green, and blue color order in memory |
CodecsLoadByteOrder.Bgr | Blue, green, and red color order in memory |
CodecsLoadByteOrder.Gray | 12 or 16-bit grayscale image. 12 and 16-bit grayscale images are only supported in the Document/Medical Imaging editions. |
CodecsLoadByteOrder.RgbOrGray | Load the image as red, green, blue OR as a 12 or 16-bit grayscale image. 12 and 16-bit grayscale images are supported in the Document/Medical Imaging editions |
CodecsLoadByteOrder.BgrOrGray | Load the image as blue, green, red OR as a 12 or 16-bit grayscale image. 12 and 16-bit grayscale images are supported in the Document/Medical Imaging editions |
CodecsLoadByteOrder.Romm | ROMM order. ROMM only supports 24 and 48-bit images |
CodecsLoadByteOrder.BgrOrGrayOrRomm | Load the image as red, green, blue OR as a 12 or 16-bit grayscale image OR as ROMM. 12 and 16-bit grayscale images are supported in the Document/Medical Imaging editions only. ROMM only supports 24 and 48-bit color images. |
The file can be in any supported image file format and bits per pixel, whether compressed or uncompressed.
This method will load all the pages in a multipage file. The resulting image will have the same bits/pixel and color order value of the image as it was stored in the file.
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.
LEADTOOLS supports the following URI schemes:Scheme | Description |
---|---|
System.Uri.UriSchemeFile | Specifies that the URI is a disk file in local machine or universal naming convention (UNC) path. |
System.Uri.UriSchemeHttp | Specifies that the URI is accessed through the Hypertext Transfer Protocol (HTTP). |
System.Uri.UriSchemeHttps | Specifies that the URI is accessed through the Secure Hypertext Transfer Protocol (HTTPS). |
System.Uri.UriSchemeFtp | Specifies that the URI is accessed through the File Transfer Protocol (FTP). |
If uri points to a resource in a System.Uri.UriSchemeHttp, System.Uri.UriSchemeHttps or System.Uri.UriSchemeFtp, then this RasterCodecs will attempt to download image data in an iterative fashion by creating a temporary buffer. The size of this buffer can be determined and changed by setting up the UriOperationBufferSize prior to calling this method.
For authenticity and proxy settings, refer to UriOperationCredentials and UriOperationProxy.
Imports Leadtools Imports Leadtools.Codecs Imports Leadtools.ImageProcessing Imports Leadtools.ImageProcessing.Color Imports Leadtools.Drawing Public Sub LoadUri2Example() Dim codecs As New RasterCodecs() ' Load the image with 1 bits/pixel Dim uri As New Uri("http://www.leadtools.com/images/15-homepg-banner.jpg") Dim image As RasterImage = codecs.Load(uri, 1, CodecsLoadByteOrder.Rgb, 1, 1) ' Show information about tha image Console.WriteLine("Size: {0} by {1} pixels", image.Width, image.Height) Console.WriteLine("Bits/Pixel: {0}", image.BitsPerPixel) image.Dispose() ' Clean up codecs.Dispose() End Sub
using Leadtools; using Leadtools.Codecs; using Leadtools.ImageProcessing; using Leadtools.ImageProcessing.Color; public void LoadUri2Example() { RasterCodecs codecs = new RasterCodecs(); // Load the image with 1 bits/pixel Uri uri = new Uri(@"http://www.leadtools.com/images/page_graphics/leadlogo.png"); RasterImage image = codecs.Load(uri, 1, CodecsLoadByteOrder.Rgb, 1, 1); // Show information about tha image Console.WriteLine("Size: {0} by {1} pixels", image.Width, image.Height); Console.WriteLine("Bits/Pixel: {0}", image.BitsPerPixel); image.Dispose(); // Clean up codecs.Dispose(); }