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It works well for small resizes of less than +/- 50 of the original image size. For larger resizing on images a full filtered and slower resize function should be used instead.</p> 62 63 <p>The format of the AdaptiveResizeImage method is:</p> 64 65 <pre class="text"> 66 Image *AdaptiveResizeImage(const Image *image,const size_t columns, 67 const size_t rows,ExceptionInfo *exception) 68 </pre> 69 70 <p>A description of each parameter follows:</p> 71 72 <dd> 73 </dd> 74 75 <dd> </dd> 76 <dl class="dl-horizontal"> 77 <dt>image</dt> 78 <dd>the image. </dd> 79 80 <dd> </dd> 81 <dt>columns</dt> 82 <dd>the number of columns in the resized image. </dd> 83 84 <dd> </dd> 85 <dt>rows</dt> 86 <dd>the number of rows in the resized image. </dd> 87 88 <dd> </dd> 89 <dt>exception</dt> 90 <dd>return any errors or warnings in this structure. </dd> 91 92 <dd> </dd> 93 </dl> 94 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/resize_8c.html" id="InterpolativeResizeImage">InterpolativeResizeImage</a></h2> 95 96 <p>InterpolativeResizeImage() resizes an image using the specified interpolation method.</p> 97 98 <p>The format of the InterpolativeResizeImage method is:</p> 99 100 <pre class="text"> 101 Image *InterpolativeResizeImage(const Image *image,const size_t columns, 102 const size_t rows,const PixelInterpolateMethod method, 103 ExceptionInfo *exception) 104 </pre> 105 106 <p>A description of each parameter follows:</p> 107 108 <dd> 109 </dd> 110 111 <dd> </dd> 112 <dl class="dl-horizontal"> 113 <dt>image</dt> 114 <dd>the image. </dd> 115 116 <dd> </dd> 117 <dt>columns</dt> 118 <dd>the number of columns in the resized image. </dd> 119 120 <dd> </dd> 121 <dt>rows</dt> 122 <dd>the number of rows in the resized image. </dd> 123 124 <dd> </dd> 125 <dt>method</dt> 126 <dd>the pixel interpolation method. </dd> 127 128 <dd> </dd> 129 <dt>exception</dt> 130 <dd>return any errors or warnings in this structure. </dd> 131 132 <dd> </dd> 133 </dl> 134 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/resize_8c.html" id="LiquidRescaleImage">LiquidRescaleImage</a></h2> 135 136 <p>LiquidRescaleImage() rescales image with seam carving.</p> 137 138 <p>The format of the LiquidRescaleImage method is:</p> 139 140 <pre class="text"> 141 Image *LiquidRescaleImage(const Image *image,const size_t columns, 142 const size_t rows,const double delta_x,const double rigidity, 143 ExceptionInfo *exception) 144 </pre> 145 146 <p>A description of each parameter follows:</p> 147 148 <dd> 149 </dd> 150 151 <dd> </dd> 152 <dl class="dl-horizontal"> 153 <dt>image</dt> 154 <dd>the image. </dd> 155 156 <dd> </dd> 157 <dt>columns</dt> 158 <dd>the number of columns in the rescaled image. </dd> 159 160 <dd> </dd> 161 <dt>rows</dt> 162 <dd>the number of rows in the rescaled image. </dd> 163 164 <dd> </dd> 165 <dt>delta_x</dt> 166 <dd>maximum seam transversal step (0 means straight seams). </dd> 167 168 <dd> </dd> 169 <dt>rigidity</dt> 170 <dd>introduce a bias for non-straight seams (typically 0). </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="http://nextgen.imagemagick.org/api/MagickCore/resize_8c.html" id="MagnifyImage">MagnifyImage</a></h2> 179 180 <p>MagnifyImage() doubles the size of the image with a pixel art scaling algorithm.</p> 181 182 <p>The format of the MagnifyImage method is:</p> 183 184 <pre class="text"> 185 Image *MagnifyImage(const Image *image,ExceptionInfo *exception) 186 </pre> 187 188 <p>A description of each parameter follows:</p> 189 190 <dd> 191 </dd> 192 193 <dd> </dd> 194 <dl class="dl-horizontal"> 195 <dt>image</dt> 196 <dd>the image. </dd> 197 198 <dd> </dd> 199 <dt>exception</dt> 200 <dd>return any errors or warnings in this structure. </dd> 201 202 <dd> </dd> 203 </dl> 204 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/resize_8c.html" id="MinifyImage">MinifyImage</a></h2> 205 206 <p>MinifyImage() is a convenience method that scales an image proportionally to half its size.</p> 207 208 <p>The format of the MinifyImage method is:</p> 209 210 <pre class="text"> 211 Image *MinifyImage(const Image *image,ExceptionInfo *exception) 212 </pre> 213 214 <p>A description of each parameter follows:</p> 215 216 <dd> 217 </dd> 218 219 <dd> </dd> 220 <dl class="dl-horizontal"> 221 <dt>image</dt> 222 <dd>the image. </dd> 223 224 <dd> </dd> 225 <dt>exception</dt> 226 <dd>return any errors or warnings in this structure. </dd> 227 228 <dd> </dd> 229 </dl> 230 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/resize_8c.html" id="ResampleImage">ResampleImage</a></h2> 231 232 <p>ResampleImage() resize image in terms of its pixel size, so that when displayed at the given resolution it will be the same size in terms of real world units as the original image at the original resolution.</p> 233 234 <p>The format of the ResampleImage method is:</p> 235 236 <pre class="text"> 237 Image *ResampleImage(Image *image,const double x_resolution, 238 const double y_resolution,const FilterTypes filter, 239 ExceptionInfo *exception) 240 </pre> 241 242 <p>A description of each parameter follows:</p> 243 244 <dd> 245 </dd> 246 247 <dd> </dd> 248 <dl class="dl-horizontal"> 249 <dt>image</dt> 250 <dd>the image to be resized to fit the given resolution. </dd> 251 252 <dd> </dd> 253 <dt>x_resolution</dt> 254 <dd>the new image x resolution. </dd> 255 256 <dd> </dd> 257 <dt>y_resolution</dt> 258 <dd>the new image y resolution. </dd> 259 260 <dd> </dd> 261 <dt>filter</dt> 262 <dd>Image filter to use. </dd> 263 264 <dd> </dd> 265 <dt>exception</dt> 266 <dd>return any errors or warnings in this structure. </dd> 267 268 <dd> </dd> 269 </dl> 270 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/resize_8c.html" id="ResizeImage">ResizeImage</a></h2> 271 272 <p>ResizeImage() scales an image to the desired dimensions, using the given filter (see AcquireFilterInfo()).</p> 273 274 <p>If an undefined filter is given the filter defaults to Mitchell for a colormapped image, a image with a matte channel, or if the image is enlarged. Otherwise the filter defaults to a Lanczos.</p> 275 276 <p>ResizeImage() was inspired by Paul Heckbert's "zoom" program.</p> 277 278 <p>The format of the ResizeImage method is:</p> 279 280 <pre class="text"> 281 Image *ResizeImage(Image *image,const size_t columns,const size_t rows, 282 const FilterTypes filter,ExceptionInfo *exception) 283 </pre> 284 285 <p>A description of each parameter follows:</p> 286 287 <dd> 288 </dd> 289 290 <dd> </dd> 291 <dl class="dl-horizontal"> 292 <dt>image</dt> 293 <dd>the image. </dd> 294 295 <dd> </dd> 296 <dt>columns</dt> 297 <dd>the number of columns in the scaled image. </dd> 298 299 <dd> </dd> 300 <dt>rows</dt> 301 <dd>the number of rows in the scaled image. </dd> 302 303 <dd> </dd> 304 <dt>filter</dt> 305 <dd>Image filter to use. </dd> 306 307 <dd> </dd> 308 <dt>exception</dt> 309 <dd>return any errors or warnings in this structure. </dd> 310 311 <dd> </dd> 312 </dl> 313 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/resize_8c.html" id="SampleImage">SampleImage</a></h2> 314 315 <p>SampleImage() scales an image to the desired dimensions with pixel sampling. Unlike other scaling methods, this method does not introduce any additional color into the scaled image.</p> 316 317 <p>The format of the SampleImage method is:</p> 318 319 <pre class="text"> 320 Image *SampleImage(const Image *image,const size_t columns, 321 const size_t rows,ExceptionInfo *exception) 322 </pre> 323 324 <p>A description of each parameter follows:</p> 325 326 <dd> 327 </dd> 328 329 <dd> </dd> 330 <dl class="dl-horizontal"> 331 <dt>image</dt> 332 <dd>the image. </dd> 333 334 <dd> </dd> 335 <dt>columns</dt> 336 <dd>the number of columns in the sampled image. </dd> 337 338 <dd> </dd> 339 <dt>rows</dt> 340 <dd>the number of rows in the sampled image. </dd> 341 342 <dd> </dd> 343 <dt>exception</dt> 344 <dd>return any errors or warnings in this structure. </dd> 345 346 <dd> </dd> 347 </dl> 348 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/resize_8c.html" id="ScaleImage">ScaleImage</a></h2> 349 350 <p>ScaleImage() changes the size of an image to the given dimensions.</p> 351 352 <p>The format of the ScaleImage method is:</p> 353 354 <pre class="text"> 355 Image *ScaleImage(const Image *image,const size_t columns, 356 const size_t rows,ExceptionInfo *exception) 357 </pre> 358 359 <p>A description of each parameter follows:</p> 360 361 <dd> 362 </dd> 363 364 <dd> </dd> 365 <dl class="dl-horizontal"> 366 <dt>image</dt> 367 <dd>the image. </dd> 368 369 <dd> </dd> 370 <dt>columns</dt> 371 <dd>the number of columns in the scaled image. </dd> 372 373 <dd> </dd> 374 <dt>rows</dt> 375 <dd>the number of rows in the scaled image. </dd> 376 377 <dd> </dd> 378 <dt>exception</dt> 379 <dd>return any errors or warnings in this structure. </dd> 380 381 <dd> </dd> 382 </dl> 383 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/resize_8c.html" id="ThumbnailImage">ThumbnailImage</a></h2> 384 385 <p>ThumbnailImage() changes the size of an image to the given dimensions and removes any associated profiles. The goal is to produce small low cost thumbnail images suited for display on the Web.</p> 386 387 <p>The format of the ThumbnailImage method is:</p> 388 389 <pre class="text"> 390 Image *ThumbnailImage(const Image *image,const size_t columns, 391 const size_t rows,ExceptionInfo *exception) 392 </pre> 393 394 <p>A description of each parameter follows:</p> 395 396 <dd> 397 </dd> 398 399 <dd> </dd> 400 <dl class="dl-horizontal"> 401 <dt>image</dt> 402 <dd>the image. </dd> 403 404 <dd> </dd> 405 <dt>columns</dt> 406 <dd>the number of columns in the scaled image. </dd> 407 408 <dd> </dd> 409 <dt>rows</dt> 410 <dd>the number of rows in the scaled image. </dd> 411 412 <dd> </dd> 413 <dt>exception</dt> 414 <dd>return any errors or warnings in this structure. </dd> 415 416 <dd> </dd> 417 </dl> 418 </div> 419 <footer class="magick-footer"> 420 <p><a href="../script/support.php">Donate</a> 421 <a href="../script/sitemap.php">Sitemap</a> 422 <a href="../script/links.php">Related</a> 423 <a href="../script/architecture.php">Architecture</a> 424 </p> 425 <p><a href="resize.php#">Back to top</a> 426 <a href="http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x89AB63D48277377A">Public Key</a> 427 <a href="../script/contact.php">Contact Us</a></p> 428 <p><small> 1999-2016 ImageMagick Studio LLC</small></p> 429 </footer> 430 </div><!-- /.container --> 431 432 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script> 433 <script src="http://nextgen.imagemagick.org/js/magick.php"></script> 434 </div> 435 </body> 436 </html> 437
