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cristy | 350dea4 | 2011-02-15 17:31:04 +0000 | [diff] [blame] | 214 | <h1>Module fourier Methods</h1> |
cristy | 6f77f69 | 2011-02-15 15:31:39 +0000 | [diff] [blame] | 215 | <p class="navigation-index">[<a href="#ForwardFourierTransformImage">ForwardFourierTransformImage</a> • <a href="#InverseFourierTransformImage">InverseFourierTransformImage</a>]</p> |
cristy | a2c730b | 2011-02-15 15:19:16 +0000 | [diff] [blame] | 216 | |
cristy | 350dea4 | 2011-02-15 17:31:04 +0000 | [diff] [blame] | 217 | <h2><a href="http://www.imagemagick.org/api/MagickCore/fourier_8c.html" id="ForwardFourierTransformImage">ForwardFourierTransformImage</a></h2> |
cristy | 6f77f69 | 2011-02-15 15:31:39 +0000 | [diff] [blame] | 218 | <div class="doc-section"> |
| 219 | |
| 220 | <p>ForwardFourierTransformImage() implements the discrete Fourier transform (DFT) of the image either as a magnitude / phase or real / imaginary image pair.</p> |
| 221 | |
| 222 | <p>The format of the ForwadFourierTransformImage method is:</p> |
| 223 | |
| 224 | <pre class="code"> |
| 225 | Image *ForwardFourierTransformImage(const Image *image, |
| 226 | const MagickBooleanType modulus,ExceptionInfo *exception) |
| 227 | </pre> |
| 228 | |
| 229 | <p>A description of each parameter follows:</p> |
| 230 | |
| 231 | <h5>image</h5> |
| 232 | <p>the image.</p> |
| 233 | |
| 234 | <h5>modulus</h5> |
| 235 | <p>if true, return as transform as a magnitude / phase pair otherwise a real / imaginary image pair.</p> |
| 236 | |
| 237 | <h5>exception</h5> |
| 238 | <p>return any errors or warnings in this structure.</p> |
| 239 | |
| 240 | </div> |
cristy | 350dea4 | 2011-02-15 17:31:04 +0000 | [diff] [blame] | 241 | <h2><a href="http://www.imagemagick.org/api/MagickCore/fourier_8c.html" id="InverseFourierTransformImage">InverseFourierTransformImage</a></h2> |
cristy | 6f77f69 | 2011-02-15 15:31:39 +0000 | [diff] [blame] | 242 | <div class="doc-section"> |
| 243 | |
| 244 | <p>InverseFourierTransformImage() implements the inverse discrete Fourier transform (DFT) of the image either as a magnitude / phase or real / imaginary image pair.</p> |
| 245 | |
| 246 | <p>The format of the InverseFourierTransformImage method is:</p> |
| 247 | |
| 248 | <pre class="code"> |
| 249 | Image *InverseFourierTransformImage(const Image *magnitude_image, |
| 250 | const Image *phase_image,const MagickBooleanType modulus, |
| 251 | ExceptionInfo *exception) |
| 252 | </pre> |
| 253 | |
| 254 | <p>A description of each parameter follows:</p> |
| 255 | |
| 256 | <h5>magnitude_image</h5> |
| 257 | <p>the magnitude or real image.</p> |
| 258 | |
| 259 | <h5>phase_image</h5> |
| 260 | <p>the phase or imaginary image.</p> |
| 261 | |
| 262 | <h5>modulus</h5> |
| 263 | <p>if true, return transform as a magnitude / phase pair otherwise a real / imaginary image pair.</p> |
| 264 | |
| 265 | <h5>exception</h5> |
| 266 | <p>return any errors or warnings in this structure.</p> |
| 267 | |
| 268 | </div> |
cristy | a2c730b | 2011-02-15 15:19:16 +0000 | [diff] [blame] | 269 |
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