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| author | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2009-12-19 21:17:45 +0000 |
|---|---|---|
| committer | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2009-12-19 21:17:45 +0000 |
| commit | 68a7163657cd2235e9569eb2281d8955bf84285a (patch) | |
| tree | fdfc716cee610afed94e9027f5bc6c6149b2c1ff /pnmsmooth.html | |
| parent | 491e95b00455cd8e9c2bbc6ed213fd24be8179e6 (diff) | |
| download | netpbm-mirror-68a7163657cd2235e9569eb2281d8955bf84285a.tar.gz netpbm-mirror-68a7163657cd2235e9569eb2281d8955bf84285a.tar.xz netpbm-mirror-68a7163657cd2235e9569eb2281d8955bf84285a.zip | |
"miscellaneous update"
git-svn-id: http://svn.code.sf.net/p/netpbm/code/userguide@1068 9d0c8265-081b-0410-96cb-a4ca84ce46f8
Diffstat (limited to 'pnmsmooth.html')
| -rw-r--r-- | pnmsmooth.html | 40 |
1 files changed, 23 insertions, 17 deletions
diff --git a/pnmsmooth.html b/pnmsmooth.html index 41605204..62f85cf3 100644 --- a/pnmsmooth.html +++ b/pnmsmooth.html @@ -2,7 +2,7 @@ <HTML><HEAD><TITLE>Pnmsmooth User Manual</TITLE></HEAD> <BODY> <H1>pnmsmooth</H1> -Updated: 4 December 1994 +Updated: 19 December 2009 <BR> <A HREF="#index">Table Of Contents</A> @@ -14,7 +14,7 @@ pnmsmooth - smooth out an image <B>pnmsmooth</B> [<b>-width=</b><i>cols</i>] [<b>-height=</b><i>rows</i>] -[<B>-dump</B>=<I>dumpfile</I>] +[<B>-dump=</b><I>dumpfile</I>] [<I>pnmfile</I>] [<b>-size</b>] <p>Minimum unique abbreviations of options is acceptable. You may use double @@ -25,23 +25,24 @@ space in place of the equals sign to separate an option name from its value. <p>This program is part of <a href="index.html">Netpbm</a>. -<p><b>pnmsmooth</b> smoothes out an image by replacing each pixel with -the average of its width X height neighbors. It is implemented as a -progam that generates a PGM convolution matrix and then invokes -<b>pnmconvol</b> with it. +<p><b>pnmsmooth</b> smoothes out an image by replacing each pixel with the +average of its width X height neighbors. It is implemented as a progam that +invokes <b>pnmconvol</b> with an appropriate convolution matrix. <H2 id="options">OPTIONS</H2> <DL COMPACT> <dt><b>-width=</b><i>cols</i> -<dt><b>-height</b>=<i>rows</i> +<dt><b>-height=</b><i>rows</i> <dd> These options specify the dimensions of the convolution matrix. -Default dimensions are 3 wide and 3 high. Each dimension must be odd. -The maximum size of the convolution matrix is limited by the maxval of -the image such that width * height * 2 must not exceed the maxval. -(use <b>pamdepth</b> to increase the maxval if necessary). +Default dimensions are 3 wide and 3 high. + +<p>Before Netpbm 10.49 (December 2009), the maximum size of the convolution +matrix is limited by the maxval of the image such that width * height * 2 must +not exceed the maxval. (use <b>pamdepth</b> to increase the maxval if +necessary). <p>These options were new in Netpbm 10.32 (February 2006). Before that, use <b>-size</b>. @@ -71,9 +72,15 @@ mean the same in current <b>pnmsmooth</b> as in old <b>pnmsmooth</b>: <DT><B>-dump=</b><i>dumpfile</i> -<DD>This options makes <b>pnmsmooth</b> only generate and save the -convolution file. It does not invoke <b>pnmconvol</B> and does not -produce an output image. +<DD>This options makes <b>pnmsmooth</b> only show you the +convolution matrix. It writes to Standard Output a <b>pnmconvol</b> +<b>-matrix</b> option value that represents the matrix. It does not +invoke <b>pnmconvol</b> and does not produce an output image. + +<p>Before Neptbm 10.49 (December 2009), this option is rather different. +It takes a file name as a value, and it writes to that file the +convolution matrix as a PGM file (as used to be the normal input for +<b>pnmconvol</b>). </DL> @@ -88,12 +95,11 @@ produce an output image. <p>Before Netpbm 10.32 (February 2006), <b>pnmsmooth</b> did not use the modern Netpbm command line parser, so had an unconventional command line -syntax. Most importantly, you could not use an equal size or double +syntax. Most importantly, you could not use an equal sign or double hyphens in the options. <HR> -<A NAME="index"> </A> -<H2>Table Of Contents</H2> +<H2 id="index">Table Of Contents</H2> <UL> <LI><A HREF="#synopsis">SYNOPSIS</A> <LI><A HREF="#description">DESCRIPTION</A> |