TiffReader Class

Syntax

Public NotInheritable Class TiffReader _
	Inherits FormatReader _
	Implements IMetadataReadSupport

public sealed class TiffReader : FormatReader, IMetadataReadSupport

Remarks

TIFF format is one of the most comprehensive image formats. It was designed to promote the interchange of digital image data. The general scenario TIFF format was invented for, assumes that scanning or painting software creates a TIFF file, which can then be read and incorporated into a document or publication by an application such as a desktop publishing package. It is also widely used to retrieve facsimile messages.

This image format is rather versatile and have a lot of modifications. It supports most Graphics Mill for .NET pixel formats even such exotic ones like Format80bppAcmyk. It also can store multiple images in the single file (mostly used for fax images and other documents stored as 1-bit bitmaps).

TIFF files can also contain Adobe® resources, XML, EXIF and IPTC data.

Examples

To load the TIFF files that contains multiple frames, you should use a TiffReader class. The code below demonstrates its usage. It reads multipage TIFF file and save each page into the separate JPEG file.

Dim filename As String = "c:\multipage.tif"

Dim reader As Aurigma.GraphicsMill.Codecs.FormatReader = _
 Aurigma.GraphicsMill.Codecs.FormatManager.CreateFormatReader(filename)

Dim bitmap As New Aurigma.GraphicsMill.Bitmap

For i As Integer = 0 To reader.FrameCount - 1
    Dim frame As Aurigma.GraphicsMill.Codecs.Frame = reader.LoadFrame(i)
    frame.GetBitmap(bitmap)
    frame.Dispose()

    bitmap.Save("c:\frame_" & i & ".jpg")
Next

bitmap.Dispose()

reader.Dispose()

string filename = @"c:\multipage.tif";

using (Aurigma.GraphicsMill.Codecs.IFormatReader reader =
           Aurigma.GraphicsMill.Codecs.FormatManager.CreateFormatReader(filename))
{

    using (Aurigma.GraphicsMill.Bitmap bitmap =
               new Aurigma.GraphicsMill.Bitmap())
    {
        for (int i = 0; i < reader.FrameCount - 1; i++)
        {
            using (Aurigma.GraphicsMill.Codecs.IFrame frame =
                       reader.LoadFrame(i))
            {
                frame.GetBitmap(bitmap);
                bitmap.Save(@"c:\frame_" + i.ToString() + ".jpg");
            }
        }
    }
}

Inheritance Hierarchy

Thread Safety

Object Model

See Also

Reference

• TiffReader Members
• Aurigma.GraphicsMill.Codecs Namespace