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-<HTML>
-<HEAD>
-<TITLE>
-Introduction to the TIFF Documentation
-</TITLE>
-</HEAD>
-<BODY BGCOLOR=white>
-<FONT FACE="Arial, Helvetica, Sans">
-<H1>
-<IMG SRC=images/strike.gif WIDTH=128 HEIGHT=100 ALIGN=left HSPACE=6>
-Introduction to the TIFF Documentation
-</H1>
-
-
-<P>
-The following definitions are used throughout this documentation.
-They are consistent with the terminology used in the TIFF 6.0 specification.
-
-<DL>
-<DT><I>Sample</I>
-<DD>The unit of information stored in an image; often called a
- channel elsewhere. Sample values are numbers, usually unsigned
- integers, but possibly in some other format if the SampleFormat
- tag is specified in a TIFF
-<DT><I>Pixel</I>
-<DD>A collection of one or more samples that go together.
-<DT><I>Row</I>
-<DD>An Nx1 rectangular collection of pixels.
-<DT><I>Tile</I>
-<DD>An NxM rectangular organization of data (or pixels).
-<DT><I>Strip</I>
-<DD>A tile whose width is the full image width.
-<DT><I>Compression</I>
-<DD>A scheme by which pixel or sample data are stored in
- an encoded form, specifically with the intent of reducing the
- storage cost.
-<DT><I>Codec</I>
-<DD>Software that implements the decoding and encoding algorithms
- of a compression scheme.
-</UL>
-
-<P>
-In order to better understand how TIFF works (and consequently this
-software) it is important to recognize the distinction between the
-physical organization of image data as it is stored in a TIFF and how
-the data is interpreted and manipulated as pixels in an image. TIFF
-supports a wide variety of storage and data compression schemes that
-can be used to optimize retrieval time and/or minimize storage space.
-These on-disk formats are independent of the image characteristics; it
-is the responsibility of the TIFF reader to process the on-disk storage
-into an in-memory format suitable for an application. Furthermore, it
-is the responsibility of the application to properly interpret the
-visual characteristics of the image data. TIFF defines a framework for
-specifying the on-disk storage format and image characteristics with
-few restrictions. This permits significant complexity that can be
-daunting. Good applications that handle TIFF work by handling as wide
-a range of storage formats as possible, while constraining the
-acceptable image characteristics to those that make sense for the
-application.
-
-
-<P>
-<HR>
-
-Last updated: $Date: 1999-08-09 20:21:21 $
-
-</BODY>
-</HTML>