diff options
Diffstat (limited to 'tifftopnm.html')
| -rw-r--r-- | tifftopnm.html | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/tifftopnm.html b/tifftopnm.html index 68f9783f..41237e7f 100644 --- a/tifftopnm.html +++ b/tifftopnm.html @@ -2,7 +2,7 @@ <HTML><HEAD><TITLE>Tifftopnm User Manual</TITLE></HEAD> <BODY> <H1>tifftopnm</H1> -Updated: 08 January 2008 +Updated: 02 June 2008 <BR> <A HREF="#index">Table Of Contents</A> @@ -39,6 +39,18 @@ which type it is writing. output stream. Before Netpbm 10.27 (March 2005), however, it would just ignore all but the first input image. +<P>The <I>tiff-filename</I> argument names the regular file that +contains the Tiff image. If you specify "-" or don't +specify this argument, <B>tfftopnm</B> uses Standard Input. In either +case, the file must be seekable. That means no pipe, but any regular +file is fine. + +<h3 id="library">TIFF Capability</h3> + +<p><b>pamtotiff</b> uses the Libtiff.org TIFF library (or whatever +equivalent you provide) to interpret the TIFF input. So the set of files +it is able to interpret is determined mostly by that library. + <P>This program cannot read every possible TIFF file -- there are myriad variations of the TIFF format. However, it does understand monochrome and gray scale, RGB, RGBA (red/green/blue with alpha @@ -69,6 +81,8 @@ other kinds of TIFF files even when they don't fit in memory all at once. The existing limitations are mainly because no one has asked for more. +<h3 id="output">Output Image</h3> + <P>The PNM output has the same maxval as the Tiff input, except that if the Tiff input is colormapped (which implies a maxval of 65535) the PNM output has a maxval of 255. Though this may result in lost @@ -85,13 +99,6 @@ which is the maximum allowed by the Netpbm formats. In that case, <b>tifftopnm</b> uses a maxval of 65535, and you lose some information in the conversion. -<P>The <I>tiff-filename</I> argument names the regular file that -contains the Tiff image. If you specify "-" or don't -specify this argument, <B>tfftopnm</B> uses Standard Input. In either -case, the file must be seekable. That means no pipe, but any regular -file is fine. - - <H2 id="options">OPTIONS</H2> @@ -312,6 +319,10 @@ HREF="mailto:naughton@wind.sun.com">naughton@wind.sun.com</A>). <UL> <LI><A HREF="#synopsis">SYNOPSIS</A> <LI><A HREF="#description">DESCRIPTION</A> + <ul> + <LI><A HREF="#library">Tiff Capability</A> + <LI><A HREF="#output">Output Image</A> + </ul> <LI><A HREF="#options">OPTIONS</A> <LI><A HREF="#notes">NOTES</A> <UL> |