<!DOCTYPE html>
<html lang="en">
<head>
- <meta name="google-site-verification" content="_bMOCDpkx9ZAzBwb2kF3PRHbfUUdFj2uO8Jd1AXArz4" />
- <title>ImageMagick: The Fx Special Effects Image Operator</title>
+ <meta charset="utf-8" />
+ <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
+ <meta http-equiv="x-ua-compatible" content="ie=edge" />
+ <title>The Fx Special Effects Image Operator @ ImageMagick</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<meta name="application-name" content="ImageMagick"/>
<meta name="description" content="ImageMagick® is a software suite to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, JPEG-2000, GIF, WebP, Postscript, PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves."/>
- <meta name="application-url" content="http://www.imagemagick.org"/>
+ <meta name="application-url" content="https://www.imagemagick.org"/>
<meta name="generator" content="PHP"/>
<meta name="keywords" content="the, fx, special, effects, image, operator, ImageMagick, PerlMagick, image processing, image, photo, software, Magick++, OpenMP, convert"/>
<meta name="rating" content="GENERAL"/>
<meta name="author" content="ImageMagick Studio LLC"/>
<meta name="revisit-after" content="2 DAYS"/>
<meta name="resource-type" content="document"/>
- <meta name="copyright" content="Copyright (c) 1999-2015 ImageMagick Studio LLC"/>
+ <meta name="copyright" content="Copyright (c) 1999-2017 ImageMagick Studio LLC"/>
<meta name="distribution" content="Global"/>
<meta name="magick-serial" content="P131-S030410-R485315270133-P82224-A6668-G1245-1"/>
+ <meta name="google-site-verification" content="_bMOCDpkx9ZAzBwb2kF3PRHbfUUdFj2uO8Jd1AXArz4" />
+ <link rel="canonical" href="https://www.imagemagick.org/script/fx.html"/>
<link rel="icon" href="../images/wand.png"/>
<link rel="shortcut icon" href="../images/wand.ico"/>
- <link rel="stylesheet" href="../css/magick.html"/>
+ <link rel="stylesheet" type="text/css" href="http://fonts.googleapis.com/css?family=Roboto:900,400,400italic,700,700italic,300,300italic|Open+Sans:300italic,400italic,700italic,300,400,600,700" />
+ <link rel="stylesheet" href="css/magick.css"/>
</head>
<body>
<div class="main">
</script>
<nav class="magick-nav">
<a class="magick-nav-item " href="../index.html">Home</a>
- <a class="magick-nav-item " href="binary-releases.html">Download</a>
+ <a class="magick-nav-item " href="download.html">Download</a>
<a class="magick-nav-item " href="command-line-tools.html">Tools</a>
<a class="magick-nav-item " href="command-line-processing.html">Command-line</a>
<a class="magick-nav-item " href="resources.html">Resources</a>
- <a class="magick-nav-item " href="api.html">Develop</a>
- <a class="magick-nav-item " href="http://nextgen.imagemagick.org/script/search.php">Search</a>
- <a class="magick-nav-item pull-right" href="http://www.imagemagick.org/discourse-server/">Community</a>
+ <a class="magick-nav-item " href="develop.html">Develop</a>
+ <a class="magick-nav-item " href="https://www.imagemagick.org/script/search.php">Search</a>
+ <a class="magick-nav-item pull-right" href="https://www.imagemagick.org/discourse-server/">Community</a>
</nav>
</div>
</div>
channel(4.28,3.86,6.68,0)/255; max(0,p+pnoise)\' noisy.png
</pre>
-<p>See <a href="http://www.imagemagick.org/Usage/transform/index.html#fx">Using FX, The Special Effects Image Operator</a> for more examples.</p>
+<p>See <a href="https://www.imagemagick.org/Usage/transform/index.html#fx">Using FX, The Special Effects Image Operator</a> for more examples.</p>
<p>The next section discusses the Fx expression language.</p>
&& (logical AND), || (logical OR),
~ (logical NOT), ?: (ternary conditional)</dd>
<dt> math functions: </dt>
- <dd> abs(), acos(), acosh(), airy(), alt(), asin(), asinh(), atan(), atanh(), atan2(), ceil(), clamp(), cos(), cosh(), debug(), drc(), exp(), floor(), gauss(), gcd(), hypot(), int(), isnan(), j0(), j1(), jinc(), ln(), log(), logtwo(), max(), min(), mod(), not(), pow(), rand(), round(), sign(), sin(), sinc(), sinh(), sqrt(), squish(), tan(), tanh(), trunc()</dd>
+ <dd> abs(), acos(), acosh(), airy(), alt(), asin(), asinh(), atan(), atanh(), atan2(), ceil(), clamp(), cos(), cosh(), debug(), drc(), erf(), exp(), floor(), gauss(), gcd(), hypot(), int(), isnan(), j0(), j1(), jinc(), ln(), log(), logtwo(), max(), min(), mod(), not(), pow(), rand(), round(), sign(), sin(), sinc(), sinh(), sqrt(), squish(), tan(), tanh(), trunc()</dd>
<dt> channel functions: </dt>
<dd> channel(r,g,b,a), channel(c,m,y,k,a)</dd>
<dt> color names:</dt>
<dt> <var>x</var> <code>=</code> <var>y</var></dt><dd>assignment; assignment variables are restricted to letter combinations only (e.g. Xi not X1)</dd>
<dt> <var>x</var> <code>;</code> <var>y</var></dt><dd>statement separator </dd>
<dt> <code>phi</code></dt><dd> constant (1.618034...)</dd>
-<dt> <code>pi</code></dt><dd> constant (3.141659...)</dd>
+<dt> <code>pi</code></dt><dd> constant (3.14159265359...)</dd>
<dt> <code>e</code></dt><dd> constant (2.71828...)</dd>
<dt> <code>QuantumRange</code></dt><dd> constant maximum pixel value (255 for Q8, 65535 for Q16)</dd>
<dt> <code>QuantumScale</code></dt><dd> constant 1.0/<code>QuantumRange</code></dd>
<dt> <code>cosh(</code><var>x</var><code>)</code></dt><dd> hyperbolic cosine function</dd>
<dt> <code>debug(</code><var>x</var><code>)</code></dt><dd> print <var>x</var> (useful for debugging your expression)</dd>
<dt> <code>drc(</code><var>x</var>,<var>y</var><code>)</code></dt><dd> dynamic range compression (knee curve); drc(<var>x</var>,<var>y</var>)=(<var>x</var>)/(<var>y</var>*(<var>x</var>-1)+1); -1<<var>y</var><1 </dd>
+<dt> <code>erf(</code><var>x</var><code>)</code></dt><dd> error function</dd>
<dt> <code>exp(</code><var>x</var><code>)</code></dt><dd> natural exponential function (<var>e<sup>x</sup></var>)</dd>
<dt> <code>floor(</code><var>x</var><code>)</code></dt><dd> largest integral value not greater than argument</dd>
<dt> <code>gauss(</code><var>x</var><code>)</code></dt><dd> gaussian function; gauss(<var>x</var>)=exp(<var>-x*x/2</var>)/sqrt(2*pi)</dd>
<p><a href="support.html">Donate</a> •
<a href="sitemap.html">Sitemap</a> •
<a href="links.html">Related</a> •
+ <a href="security-policy.html">Security</a> •
<a href="architecture.html">Architecture</a>
</p>
<p><a href="fx.html#">Back to top</a> •
<a href="http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x89AB63D48277377A">Public Key</a> •
- <a href="http://nextgen.imagemagick.org/script/contact.php">Contact Us</a></p>
- <p><small>© 1999-2015 ImageMagick Studio LLC</small></p>
+ <a href="https://www.imagemagick.org/script/contact.php">Contact Us</a></p>
+ <p><small>© 1999-2017 ImageMagick Studio LLC</small></p>
</footer>
</div><!-- /.container -->
<script src="https://localhost/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
- <script src="http://nextgen.imagemagick.org/js/magick.html"></script>
+ <script src="../js/magick.html"></script>
</div>
</body>
</html>
+<!-- Magick Cache 21st January 2017 12:17 -->
\ No newline at end of file
projects / imagemagick / blobdiff