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| author | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2015-11-06 05:38:49 +0100 |
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| committer | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2015-11-06 05:38:49 +0100 |
| commit | 9491825ddff7a294d1f49061bae7044e426aeb2e (patch) | |
| tree | 06e651099f87140ec534ae47fb8ce1ac6ec7976d /tiff/html/intro.html | |
| parent | fa756339d4204bff7f2820067f58214d32780d17 (diff) | |
Imported Upstream version 1.8.3
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| -rwxr-xr-x | tiff/html/intro.html | 68 |
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diff --git a/tiff/html/intro.html b/tiff/html/intro.html new file mode 100755 index 0000000..7b7bb82 --- /dev/null +++ b/tiff/html/intro.html @@ -0,0 +1,68 @@ +<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> |