1 2 3 4 5<!doctype html> 6<html lang="en"> 7<head> 8 <meta charset="utf-8" /> 9 <meta name="viewport" content="width=device-width, initial-scale=1" /> 10 <title>ImageMagick - MagickCore, C API: Paint on an Image</title> 11 <meta name="application-name" content="ImageMagick" /> 12 <meta name="description" content="Use ImageMagick® to create, edit, compose, and convert digital images. Resize an image, crop it, change its shades and colors, add captions, and more." /> 13 <meta name="application-url" content="https://imagemagick.org" /> 14 <meta name="generator" content="PHP" /> 15 <meta name="keywords" content="magickcore, c, api:, paint, on, an, image, image processing software" /> 16 <meta name="rating" content="GENERAL" /> 17 <meta name="robots" content="INDEX, FOLLOW" /> 18 <meta name="generator" content="ImageMagick Studio LLC" /> 19 <meta name="author" content="ImageMagick Studio LLC" /> 20 <meta name="revisit-after" content="2 DAYS" /> 21 <meta name="resource-type" content="document" /> 22 <meta name="copyright" content="Copyright (c) 1999-2020 ImageMagick Studio LLC" /> 23 <meta name="distribution" content="Global" /> 24 <meta name="magick-serial" content="P131-S030410-R485315270133-P82224-A6668-G1245-1" /> 25 <meta property='og:url' content='../../' /> 26 <meta property='og:title' content='ImageMagick' /> 27 <meta property='og:image' content='../../../images/logo.png' /> 28 <meta property='og:type' content='website' /> 29 <meta property='og:site_name' content='ImageMagick' /> 30 <meta property='og:description' content="Create, Edit, Compose, or Convert Digital Images" /> 31 <meta name="google-site-verification" content="_bMOCDpkx9ZAzBwb2kF3PRHbfUUdFj2uO8Jd1AXArz4" /> 32 <link href="paint.html" rel="canonical" /> 33 <link href="../../../images/wand.png" rel="icon" /> 34 <link href="../../../images/wand.ico" rel="shortcut icon" /> 35 <link href="../../assets/magick.css" rel="stylesheet" /> 36</head> 37<body> 38 <nav class="navbar navbar-expand-md navbar-dark bg-dark fixed-top"> 39 <div class="container-fluid"> 40 <a class="navbar-brand" href="../../"><img class="d-block" id="icon" alt="ImageMagick" width="32" height="32" src="../../../images/wand.ico"/></a> 41 <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#magick-navbars" aria-controls="magick-navbars" aria-expanded="false" aria-label="Toggle navigation"> 42 <span class="navbar-toggler-icon"></span> 43 </button> 44 45 <div class="collapse navbar-collapse" id="magick-navbars"> 46 <ul class="navbar-nav me-auto mb-2 mb-md-0"> 47 <li class="nav-item"> 48 <a class="nav-link " href="../../www/index.html">Home</a> 49 </li> 50 <li class="nav-item"> 51 <a class="nav-link " href="../../www/download.html">Download</a> 52 </li> 53 <li class="nav-item"> 54 <a class="nav-link " href="../../www/command-line-tools.html">Tools</a> 55 </li> 56 <li class="nav-item"> 57 <a class="nav-link " href="../../www/command-line-processing.html">CLI</a> 58 </li> 59 <li class="nav-item"> 60 <a class="nav-link " href="../../www/develop.html">Develop</a> 61 </li> 62 <li class="nav-item"> 63 <a class="nav-link" target="_blank" href="https://github.com/ImageMagick/ImageMagick/discussions">Community</a> 64 </li> 65 <li class="nav-item"> 66 <iframe src="https://github.com/sponsors/ImageMagick/button" title="Sponsor ImageMagick" height="35" width="107" style="border: 0;"></iframe> 67 </li> 68 </ul> 69 <form class="d-flex form-inline" action="https://imagemagick.org/script/search.php"> 70 <input class="form-control me-2" type="text" name="q" placeholder="Search" aria-label="Search"> 71 <button class="btn btn-outline-success" type="submit" name="sa">Search</button> 72 </form> 73 </div> 74 </div> 75 </nav> 76 77 <div class="container"> 78 <script async="async" src="https://localhost/pagead/js/adsbygoogle.js"></script> 79 <ins class="adsbygoogle" 80 style="display:block" 81 data-ad-client="ca-pub-3129977114552745" 82 data-ad-slot="6345125851" 83 data-full-width-responsive="true" 84 data-ad-format="horizontal"></ins> 85 <script> 86 (adsbygoogle = window.adsbygoogle || []).push({}); 87 </script> 88 89 </div> 90 91 <main class="container"> 92 <div class="magick-template"> 93<div class="magick-header"> 94<p class="text-center"><a href="paint.html#FloodfillPaintImage">FloodfillPaintImage</a> • <a href="paint.html#OilPaintImage">OilPaintImage</a> • <a href="paint.html#OpaquePaintImage">OpaquePaintImage</a> • <a href="paint.html#TransparentPaintImage">TransparentPaintImage</a> • <a href="paint.html#TransparentPaintImageChroma">TransparentPaintImageChroma</a></p> 95 96<h2><a href="../../api/MagickCore/paint_8c.html" id="FloodfillPaintImage">FloodfillPaintImage</a></h2> 97 98<p>FloodfillPaintImage() changes the color value of any pixel that matches target and is an immediate neighbor. If the method FillToBorderMethod is specified, the color value is changed for any neighbor pixel that does not match the bordercolor member of image.</p> 99 100<p>By default target must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. The fuzz member of image defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color for the purposes of the floodfill.</p> 101 102<p>The format of the FloodfillPaintImage method is:</p> 103 104<pre class="text"> 105MagickBooleanType FloodfillPaintImage(Image *image, 106 const DrawInfo *draw_info,const PixelInfo target, 107 const ssize_t x_offset,const ssize_t y_offset, 108 const MagickBooleanType invert,ExceptionInfo *exception) 109</pre> 110 111<p>A description of each parameter follows:</p> 112 113<dd> 114</dd> 115 116<dd> </dd> 117<dl class="dl-horizontal"> 118<dt>image</dt> 119<dd>the image. </dd> 120 121<dd> </dd> 122<dt>draw_info</dt> 123<dd>the draw info. </dd> 124 125<dd> </dd> 126<dt>target</dt> 127<dd>the RGB value of the target color. </dd> 128 129<dd> </dd> 130<dt>x_offset,y_offset</dt> 131<dd>the starting location of the operation. </dd> 132 133<dd> </dd> 134<dt>invert</dt> 135<dd>paint any pixel that does not match the target color. </dd> 136 137<dd> </dd> 138<dt>exception</dt> 139<dd>return any errors or warnings in this structure. </dd> 140 141<dd> </dd> 142</dl> 143<h2><a href="../../api/MagickCore/paint_8c.html" id="OilPaintImage">OilPaintImage</a></h2> 144 145<p>OilPaintImage() applies a special effect filter that simulates an oil painting. Each pixel is replaced by the most frequent color occurring in a circular region defined by radius.</p> 146 147<p>The format of the OilPaintImage method is:</p> 148 149<pre class="text"> 150Image *OilPaintImage(const Image *image,const double radius, 151 const double sigma,ExceptionInfo *exception) 152</pre> 153 154<p>A description of each parameter follows:</p> 155 156<dd> 157</dd> 158 159<dd> </dd> 160<dl class="dl-horizontal"> 161<dt>image</dt> 162<dd>the image. </dd> 163 164<dd> </dd> 165<dt>radius</dt> 166<dd>the radius of the circular neighborhood. </dd> 167 168<dd> </dd> 169<dt>sigma</dt> 170<dd>the standard deviation of the Gaussian, in pixels. </dd> 171 172<dd> </dd> 173<dt>exception</dt> 174<dd>return any errors or warnings in this structure. </dd> 175 176<dd> </dd> 177</dl> 178<h2><a href="../../api/MagickCore/paint_8c.html" id="OpaquePaintImage">OpaquePaintImage</a></h2> 179 180<p>OpaquePaintImage() changes any pixel that matches color with the color defined by fill argument.</p> 181 182<p>By default color must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. Fuzz defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color.</p> 183 184<p>The format of the OpaquePaintImage method is:</p> 185 186<pre class="text"> 187MagickBooleanType OpaquePaintImage(Image *image,const PixelInfo *target, 188 const PixelInfo *fill,const MagickBooleanType invert, 189 ExceptionInfo *exception) 190</pre> 191 192<p>A description of each parameter follows:</p> 193 194<dd> 195</dd> 196 197<dd> </dd> 198<dl class="dl-horizontal"> 199<dt>image</dt> 200<dd>the image. </dd> 201 202<dd> </dd> 203<dt>target</dt> 204<dd>the RGB value of the target color. </dd> 205 206<dd> </dd> 207<dt>fill</dt> 208<dd>the replacement color. </dd> 209 210<dd> </dd> 211<dt>invert</dt> 212<dd>paint any pixel that does not match the target color. </dd> 213 214<dd> </dd> 215<dt>exception</dt> 216<dd>return any errors or warnings in this structure. </dd> 217 218<dd> </dd> 219</dl> 220<h2><a href="../../api/MagickCore/paint_8c.html" id="TransparentPaintImage">TransparentPaintImage</a></h2> 221 222<p>TransparentPaintImage() changes the opacity value associated with any pixel that matches color to the value defined by opacity.</p> 223 224<p>By default color must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. Fuzz defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color.</p> 225 226<p>The format of the TransparentPaintImage method is:</p> 227 228<pre class="text"> 229MagickBooleanType TransparentPaintImage(Image *image, 230 const PixelInfo *target,const Quantum opacity, 231 const MagickBooleanType invert,ExceptionInfo *exception) 232</pre> 233 234<p>A description of each parameter follows:</p> 235 236<dd> 237</dd> 238 239<dd> </dd> 240<dl class="dl-horizontal"> 241<dt>image</dt> 242<dd>the image. </dd> 243 244<dd> </dd> 245<dt>target</dt> 246<dd>the target color. </dd> 247 248<dd> </dd> 249<dt>opacity</dt> 250<dd>the replacement opacity value. </dd> 251 252<dd> </dd> 253<dt>invert</dt> 254<dd>paint any pixel that does not match the target color. </dd> 255 256<dd> </dd> 257<dt>exception</dt> 258<dd>return any errors or warnings in this structure. </dd> 259 260<dd> </dd> 261</dl> 262<h2><a href="../../api/MagickCore/paint_8c.html" id="TransparentPaintImageChroma">TransparentPaintImageChroma</a></h2> 263 264<p>TransparentPaintImageChroma() changes the opacity value associated with any pixel that matches color to the value defined by opacity.</p> 265 266<p>As there is one fuzz value for the all the channels, TransparentPaintImage() is not suitable for the operations like chroma, where the tolerance for similarity of two color component (RGB) can be different. Thus we define this method to take two target pixels (one low and one high) and all the pixels of an image which are lying between these two pixels are made transparent.</p> 267 268<p>The format of the TransparentPaintImageChroma method is:</p> 269 270<pre class="text"> 271MagickBooleanType TransparentPaintImageChroma(Image *image, 272 const PixelInfo *low,const PixelInfo *high,const Quantum opacity, 273 const MagickBooleanType invert,ExceptionInfo *exception) 274</pre> 275 276<p>A description of each parameter follows:</p> 277 278<dd> 279</dd> 280 281<dd> </dd> 282<dl class="dl-horizontal"> 283<dt>image</dt> 284<dd>the image. </dd> 285 286<dd> </dd> 287<dt>low</dt> 288<dd>the low target color. </dd> 289 290<dd> </dd> 291<dt>high</dt> 292<dd>the high target color. </dd> 293 294<dd> </dd> 295<dt>opacity</dt> 296<dd>the replacement opacity value. </dd> 297 298<dd> </dd> 299<dt>invert</dt> 300<dd>paint any pixel that does not match the target color. </dd> 301 302<dd> </dd> 303<dt>exception</dt> 304<dd>return any errors or warnings in this structure. </dd> 305 306<dd> </dd> 307</dl> 308</div> 309 </div> 310 </main><!-- /.container --> 311 <footer class="magick-footer"> 312 <div class="container-fluid"> 313 <a href="../../www/security-policy.html">Security</a> • 314 <a href="../../www/news.html">News</a> 315 316 <a href="paint.html#"><img class="d-inline" id="wand" alt="And Now a Touch of Magick" width="16" height="16" src="../../../images/wand.ico"/></a> 317 318 <a href="../../www/links.html">Related</a> • 319 <a href="../../www/sitemap.html">Sitemap</a> 320 <br/> 321 <a href="../../www/support.html">Sponsor</a> • 322 <a href="../../www/cite.html">Cite</a> • 323 <a href="http://pgp.mit.edu/pks/lookup?op=get&search=0x89AB63D48277377A">Public Key</a> • 324 <a href="../../www/contact.html">Contact Us</a> 325 <br/> 326 <a href="https://github.com/imagemagick/imagemagick" target="_blank" rel="noopener" aria-label="GitHub"><svg xmlns="http://www.w3.org/2000/svg" class="navbar-nav-svg" viewBox="0 0 512 499.36" width="2%" height="2%" role="img" focusable="false"><title>GitHub</title><path fill="currentColor" fill-rule="evenodd" d="M256 0C114.64 0 0 114.61 0 256c0 113.09 73.34 209 175.08 242.9 12.8 2.35 17.47-5.56 17.47-12.34 0-6.08-.22-22.18-.35-43.54-71.2 15.49-86.2-34.34-86.2-34.34-11.64-29.57-28.42-37.45-28.42-37.45-23.27-15.84 1.73-15.55 1.73-15.55 25.69 1.81 39.21 26.38 39.21 26.38 22.84 39.12 59.92 27.82 74.5 21.27 2.33-16.54 8.94-27.82 16.25-34.22-56.84-6.43-116.6-28.43-116.6-126.49 0-27.95 10-50.8 26.35-68.69-2.63-6.48-11.42-32.5 2.51-67.75 0 0 21.49-6.88 70.4 26.24a242.65 242.65 0 0 1 128.18 0c48.87-33.13 70.33-26.24 70.33-26.24 14 35.25 5.18 61.27 2.55 67.75 16.41 17.9 26.31 40.75 26.31 68.69 0 98.35-59.85 120-116.88 126.32 9.19 7.9 17.38 23.53 17.38 47.41 0 34.22-.31 61.83-.31 70.23 0 6.85 4.61 14.81 17.6 12.31C438.72 464.97 512 369.08 512 256.02 512 114.62 397.37 0 256 0z"/></svg></a> • 327 <a href="https://twitter.com/imagemagick" target="_blank" rel="noopener" aria-label="Twitter"><svg xmlns="http://www.w3.org/2000/svg" class="navbar-nav-svg" viewBox="0 0 512 416.32" width="2%" height="2%" role="img" focusable="false"><title>Twitter</title><path fill="currentColor" d="M160.83 416.32c193.2 0 298.92-160.22 298.92-298.92 0-4.51 0-9-.2-13.52A214 214 0 0 0 512 49.38a212.93 212.93 0 0 1-60.44 16.6 105.7 105.7 0 0 0 46.3-58.19 209 209 0 0 1-66.79 25.37 105.09 105.09 0 0 0-181.73 71.91 116.12 116.12 0 0 0 2.66 24c-87.28-4.3-164.73-46.3-216.56-109.82A105.48 105.48 0 0 0 68 159.6a106.27 106.27 0 0 1-47.53-13.11v1.43a105.28 105.28 0 0 0 84.21 103.06 105.67 105.67 0 0 1-47.33 1.84 105.06 105.06 0 0 0 98.14 72.94A210.72 210.72 0 0 1 25 370.84a202.17 202.17 0 0 1-25-1.43 298.85 298.85 0 0 0 160.83 46.92"/></svg></a> 328 <br/> 329 <small>© 1999-2021 ImageMagick Studio LLC</small> 330 </div> 331 </footer> 332 333 <!-- Javascript assets --> 334 <script src="../../assets/magick.js" ></script> 335 </body> 336</html> 337
