TTiffImage class

In unit Graphics

Implements support for the TIFF (Tag Image File Format) graphic format.

Declaration

pascal

TTiffImage = class(TFPImageBitmap)

Inheritance

Description

TTiffImage is a TFPImageBitmap descendant which implements support for the TIFF (Tag Image File Format) image format.

It is a raster graphics image format. TIFF is widely supported by scanning, faxing, word processing, optical character recognition, image manipulation, desktop publishing, and page-layout applications. TIFF was created for use as a common image format for scanners. Various revisions to the specification have added grayscale and color support to the image format. It is a popular format for deep-color images.

TIFF images use .TIF or .TIFF file extensions, and the MIME types 'image/TIF' or 'image/TIFF'.

TTiffImage implements the class methods from the ancestor class which get FCL TFPCustomImageReaderClass and TFPCustomImageWriterClass instances, as well as the shared graphics class instance for the image format.

TTiffImage has properties which expose values for Baseline Tags in the image data, including:

Artist
Copyright
DateTime
DocumentName
HostComputer
ImageDescription
Make
Model
ResolutionUnit
Software
XResolution
YResolution

Properties

`Artist`	public	Person who created the image.
`Copyright`	public	Copyright notice for the image.
`DateTime`	public	Date and time the image was created.
`DocumentName`	public	Name of the document from which the image was scanned.
`HostComputer`	public	The computer and/or operating system where the image was created.
`ImageDescription`	public	A string that describes the subject of the image.
`Make`	public	The scanner manufacturer.
`Model`	public	The scanner model name or number.
`ResolutionUnit`	public	The unit of measurement for XResolution and YResolution.
`Software`	public	Name and version number for the software used to create the image.
`XResolution`	public	Number of pixels in ResolutionUnits for the image width.
`YResolution`	public	Number of pixels in ResolutionUnits for the image height.

Methods

`InitializeReader`	protected	Initializes the FCL-compatible image reader for the image.
`InitializeWriter`	protected	Initializes the FCL-compatible image writer for the image.
`FinalizeReader`	protected	Captures values from the image reader after loading an image.
`GetReaderClass`	protected	Gets the class reference used to create new instances of the FCL-compatible image reader.
`GetWriterClass`	protected	Gets the class reference used to create new instances of the FCL-compatible image writer.
`GetSharedImageClass`	protected	Gets the class reference used to create new shared image instances in the class.
`Create`	public	Constructor for the class instance.
`GetFileExtensions`	public	Gets the delimited list of file extension(s) for files which support the image format.