Tiff is an image file format and a flexible bitmap format mainly used to store images including photos and artwork. The format was originally developed by Aldus Company and Microsoft Company for PostScript printing. development.
The operating environment of this article: Windows 7 system, Dell G3 computer.
Tag Image File Format (TIFF) is a flexible bitmap format mainly used to store images including photos and artwork. It was originally developed by Aldus and Microsoft. PostScript printing development. TIFF joins JPEG and PNG as a popular high-bit color image format.
The TIFF format is widely supported in the industry, such as Adobe's Photoshop, The GIMP Team's GIMP, Ulead PhotoImpact and Paint Shop Pro and other image processing applications, desktop printing and page layout such as QuarkXPress and Adobe InDesign Applications such as scanning, faxing, word processing, optical character recognition and other applications all support this format. Adobe, which acquired the PageMaker printing application from Aldus, controls the TIFF specification.
Format features
Widely used
(1)TIFF Can describe many types of images; (2) TIFF has a series of compression schemes to choose from; (3) TIFF does not depend on specific hardware; (4) TIFF is a portable file format.
Extensibility
There are a number of extensions defined in TIFF 6.0 that allow TIFF to provide the following common functionality:
(1) Several main compression methods; (2) Multiple color representation methods; (3) Image quality enhancement; (4) Special image effects; (5) Document storage and retrieval help.
Complex format
The complexity of TIFF files brings some problems to its application. For one thing, it's very difficult to write software that recognizes all the different tags. A TIFF file, on the other hand, can contain multiple images, each with its own IFD and set of tags, and with a variety of compression algorithms. This also increases the complexity of programming.
TIFF in Document Images
The TIFF format is a standard format in document images and document management systems. In this environment it usually uses CCITT Group IV 2D compression which supports black and white (also called binary or monochrome) images. In high-volume production environments, documents are often scanned as black-and-white images (rather than color or grayscale images) to save storage space. The average size of A4 size 200dpi (dots per inch) scans is 30KB, while 300dpi scans are 50KB. 300dpi is more commonly used than 200dpi.
Since the TIFF format supports multiple pages, multi-page files can be stored in one TIFF file instead of having each scanned page stored in a series of files.
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