src/tiff/html/man/fax2tiff.1.html

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   7 <title>FAX2TIFF</title>
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  10
  11 <h1 align=center>FAX2TIFF</h1>
  12 <a href="#NAME">NAME</a><br>
  13 <a href="#SYNOPSIS">SYNOPSIS</a><br>
  14 <a href="#DESCRIPTION">DESCRIPTION</a><br>
  15 <a href="#OPTIONS">OPTIONS</a><br>
  16 <a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
  17 <a href="#BUGS">BUGS</a><br>
  18 <a href="#SEE ALSO">SEE ALSO</a><br>
  19
  20 <hr>
  21 <a name="NAME"></a>
  22 <h2>NAME</h2>
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  27 <td width="8%"></td>
  28 <td width="91%">
  29 <p>fax2tiff &minus; create a <small>TIFF</small> Class F fax
  30 file from raw fax data</p>
  31 </td>
  32 </table>
  33 <a name="SYNOPSIS"></a>
  34 <h2>SYNOPSIS</h2>
  35 <!-- INDENTATION -->
  36 <table width="100%" border=0 rules="none" frame="void"
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  39 <td width="8%"></td>
  40 <td width="91%">
  41 <p><b>fax2tiff</b> [ <i>options</i> ] [ <b>&minus;o</b>
  42 <i>output.tif</i> ] <i>input.raw</i></p>
  43 </td>
  44 </table>
  45 <a name="DESCRIPTION"></a>
  46 <h2>DESCRIPTION</h2>
  47 <!-- INDENTATION -->
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  52 <td width="91%">
  53 <p><i>Fax2tiff</i> creates a <small>TIFF</small> file
  54 containing <small>CCITT</small> Group 3 or Group 4 encoded
  55 data from one or more files containing
  56 &lsquo;&lsquo;raw&rsquo;&rsquo; Group 3 or Group 4 encoded
  57 data (typically obtained directly from a fax modem). By
  58 default, each row of data in the resultant
  59 <small>TIFF</small> file is 1-dimensionally encoded and
  60 padded or truncated to 1728 pixels, as needed. The resultant
  61 image is a set of low resolution (98 lines/inch) or medium
  62 resolution (196 lines/inch) pages, each of which is a single
  63 strip of data. The generated file conforms to the
  64 <small>TIFF</small> Class F ( <small>FAX</small> )
  65 specification for storing facsimile data. This means, in
  66 particular, that each page of the data does <b>not</b>
  67 include the trailing <i>return to control</i> (
  68 <small>RTC</small> ) code; as required for transmission by
  69 the <small>CCITT</small> Group 3 specifications. The old,
  70 &lsquo;&lsquo;classic&rsquo;&rsquo;, format is created if
  71 the <b>&minus;c</b> option is used. (The Class F format can
  72 also be requested with the <b>&minus;f</b> option.)</p>
  73 <!-- INDENTATION -->
  74 <p>The default name of the output image is <i>fax.tif</i>;
  75 this can be changed with the <b>&minus;o</b> option. Each
  76 input file is assumed to be a separate page of facsimile
  77 data from the same document. The order in which input files
  78 are specified on the command line is the order in which the
  79 resultant pages appear in the output file.</p>
  80 </td>
  81 </table>
  82 <a name="OPTIONS"></a>
  83 <h2>OPTIONS</h2>
  84 <!-- INDENTATION -->
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  89 <td width="91%">
  90 <p>Options that affect the interpretation of input data
  91 are:</p>
  92 </td>
  93 </table>
  94 <!-- TABS -->
  95 <table width="100%" border=0 rules="none" frame="void"
  96        cols="5" cellspacing="0" cellpadding="0">
  97 <tr valign="top" align="left">
  98 <td width="10%"></td>
  99 <td width="3%">
 100
 101 <p><b>&minus;3</b></p>
 102 </td>
 103 <td width="5%"></td>
 104 <td width="80%">
 105
 106 <p>Assume input data is <small>CCITT</small> Group 3
 107 encoded (default).</p>
 108 </td>
 109 <td width="0%">
 110 </td>
 111 <tr valign="top" align="left">
 112 <td width="10%"></td>
 113 <td width="3%">
 114
 115 <p><b>&minus;4</b></p>
 116 </td>
 117 <td width="5%"></td>
 118 <td width="80%">
 119
 120 <p>Assume input data is <small>CCITT</small> Group 4
 121 encoded.</p>
 122 </td>
 123 <td width="0%">
 124 </td>
 125 <tr valign="top" align="left">
 126 <td width="10%"></td>
 127 <td width="3%">
 128
 129 <p><b>&minus;U</b></p>
 130 </td>
 131 <td width="5%"></td>
 132 <td width="80%">
 133
 134 <p>Assume input data is uncompressed (Group 3 or Group
 135 4).</p>
 136 </td>
 137 <td width="0%">
 138 </td>
 139 <tr valign="top" align="left">
 140 <td width="10%"></td>
 141 <td width="3%">
 142
 143 <p><b>&minus;1</b></p>
 144 </td>
 145 <td width="5%"></td>
 146 <td width="80%">
 147
 148 <p>Assume input data is encoded with the 1-dimensional
 149 version of the <small>CCITT</small> Group 3 Huffman encoding
 150 algorithm (default).</p>
 151 </td>
 152 <td width="0%">
 153 </td>
 154 <tr valign="top" align="left">
 155 <td width="10%"></td>
 156 <td width="3%">
 157
 158 <p><b>&minus;2</b></p>
 159 </td>
 160 <td width="5%"></td>
 161 <td width="80%">
 162
 163 <p>Assume input data is 2-dimensional version of the
 164 <small>CCITT</small> Group 3 Huffman encoding algorithm.</p>
 165 </td>
 166 <td width="0%">
 167 </td>
 168 <tr valign="top" align="left">
 169 <td width="10%"></td>
 170 <td width="3%">
 171
 172 <p><b>&minus;P</b></p>
 173 </td>
 174 <td width="5%"></td>
 175 <td width="80%">
 176
 177 <p>Assume input data is <b>not</b> EOL-aligned (default).
 178 This option has effect with Group 3 encoded input only.</p>
 179 </td>
 180 <td width="0%">
 181 </td>
 182 <tr valign="top" align="left">
 183 <td width="10%"></td>
 184 <td width="3%">
 185
 186 <p><b>&minus;A</b></p>
 187 </td>
 188 <td width="5%"></td>
 189 <td width="80%">
 190
 191 <p>Assume input data is EOL-aligned. This option has effect
 192 with Group 3 encoded input only.</p>
 193 </td>
 194 <td width="0%">
 195 </td>
 196 <tr valign="top" align="left">
 197 <td width="10%"></td>
 198 <td width="3%">
 199
 200 <p><b>&minus;M</b></p>
 201 </td>
 202 <td width="5%"></td>
 203 <td width="80%">
 204
 205 <p>Treat input data as having bits filled from most
 206 significant bit ( <small>MSB</small> ) to most least bit (
 207 <small>LSB</small> ).</p>
 208 </td>
 209 <td width="0%">
 210 </td>
 211 <tr valign="top" align="left">
 212 <td width="10%"></td>
 213 <td width="3%">
 214
 215 <p><b>&minus;L</b></p>
 216 </td>
 217 <td width="5%"></td>
 218 <td width="80%">
 219
 220 <p>Treat input data as having bits filled from least
 221 significant bit ( <small>LSB</small> ) to most significant
 222 bit ( <small>MSB</small> ) (default).</p>
 223 </td>
 224 <td width="0%">
 225 </td>
 226 <tr valign="top" align="left">
 227 <td width="10%"></td>
 228 <td width="3%">
 229
 230 <p><b>&minus;B</b></p>
 231 </td>
 232 <td width="5%"></td>
 233 <td width="80%">
 234
 235 <p>Assume input data was encoded with black as 0 and white
 236 as 1.</p>
 237 </td>
 238 <td width="0%">
 239 </td>
 240 <tr valign="top" align="left">
 241 <td width="10%"></td>
 242 <td width="3%">
 243
 244 <p><b>&minus;W</b></p>
 245 </td>
 246 <td width="5%"></td>
 247 <td width="80%">
 248
 249 <p>Assume input data was encoded with black as 1 and white
 250 as 0 (default).</p>
 251 </td>
 252 <td width="0%">
 253 </td>
 254 <tr valign="top" align="left">
 255 <td width="10%"></td>
 256 <td width="3%">
 257
 258 <p><b>&minus;R</b></p>
 259 </td>
 260 <td width="5%"></td>
 261 <td width="80%">
 262
 263 <p>Specify the vertical resolution, in lines/inch, of the
 264 input images. By default input are assumed to have a
 265 vertical resolution of 196 lines/inch. If images are low
 266 resolution facsimile, a value of 98 lines/inch should be
 267 specified.</p>
 268 </td>
 269 <td width="0%">
 270 </td>
 271 <tr valign="top" align="left">
 272 <td width="10%"></td>
 273 <td width="3%">
 274
 275 <p><b>&minus;X</b></p>
 276 </td>
 277 <td width="5%"></td>
 278 <td width="80%">
 279
 280 <p>Specify the width, in pixels, of the input images. By
 281 default input are assumed to have a width of 1728
 282 pixels.</p>
 283 </td>
 284 <td width="0%">
 285 </td>
 286 </table>
 287 <!-- INDENTATION -->
 288 <table width="100%" border=0 rules="none" frame="void"
 289        cols="2" cellspacing="0" cellpadding="0">
 290 <tr valign="top" align="left">
 291 <td width="8%"></td>
 292 <td width="91%">
 293 <p>Options that affect the output file format are:</p>
 294 </td>
 295 </table>
 296 <!-- TABS -->
 297 <table width="100%" border=0 rules="none" frame="void"
 298        cols="5" cellspacing="0" cellpadding="0">
 299 <tr valign="top" align="left">
 300 <td width="10%"></td>
 301 <td width="3%">
 302
 303 <p><b>&minus;o</b></p>
 304 </td>
 305 <td width="5%"></td>
 306 <td width="80%">
 307
 308 <p>Specify the name of the output file.</p>
 309 </td>
 310 <td width="0%">
 311 </td>
 312 <tr valign="top" align="left">
 313 <td width="10%"></td>
 314 <td width="3%">
 315
 316 <p><b>&minus;7</b></p>
 317 </td>
 318 <td width="5%"></td>
 319 <td width="80%">
 320
 321 <p>Force output to be compressed with the
 322 <small>CCITT</small> Group 3 Huffman encoding algorithm
 323 (default).</p>
 324 </td>
 325 <td width="0%">
 326 </td>
 327 <tr valign="top" align="left">
 328 <td width="10%"></td>
 329 <td width="3%">
 330
 331 <p><b>&minus;8</b></p>
 332 </td>
 333 <td width="5%"></td>
 334 <td width="80%">
 335
 336 <p>Force output to be compressed with the
 337 <small>CCITT</small> Group 4 Huffman encoding.</p>
 338 </td>
 339 <td width="0%">
 340 </td>
 341 <tr valign="top" align="left">
 342 <td width="10%"></td>
 343 <td width="3%">
 344
 345 <p><b>&minus;u</b></p>
 346 </td>
 347 <td width="5%"></td>
 348 <td width="80%">
 349
 350 <p>Force output to be uncompressed (Group 3 or Group
 351 4).</p>
 352 </td>
 353 <td width="0%">
 354 </td>
 355 <tr valign="top" align="left">
 356 <td width="10%"></td>
 357 <td width="3%">
 358
 359 <p><b>&minus;5</b></p>
 360 </td>
 361 <td width="5%"></td>
 362 <td width="80%">
 363
 364 <p>Force output to be encoded with the 1-dimensional
 365 version of the <small>CCITT</small> Group 3 Huffman encoding
 366 algorithm.</p>
 367 </td>
 368 <td width="0%">
 369 </td>
 370 <tr valign="top" align="left">
 371 <td width="10%"></td>
 372 <td width="3%">
 373
 374 <p><b>&minus;6</b></p>
 375 </td>
 376 <td width="5%"></td>
 377 <td width="80%">
 378
 379 <p>Force output to be encoded with the 2-dimensional
 380 version of the <small>CCITT</small> Group 3 Huffman encoding
 381 algorithm (default).</p>
 382 </td>
 383 <td width="0%">
 384 </td>
 385 <tr valign="top" align="left">
 386 <td width="10%"></td>
 387 <td width="3%">
 388
 389 <p><b>&minus;a</b></p>
 390 </td>
 391 <td width="5%"></td>
 392 <td width="80%">
 393
 394 <p>Force the last bit of each <i>End Of Line</i> (
 395 <small>EOL</small> ) code to land on a byte boundary
 396 (default). This &lsquo;&lsquo;zero padding&rsquo;&rsquo;
 397 will be reflected in the contents of the
 398 <i>Group3Options</i> tag of the resultant
 399 <small>TIFF</small> file. This option has effect with Group
 400 3 encoded output only.</p>
 401 </td>
 402 <td width="0%">
 403 </td>
 404 <tr valign="top" align="left">
 405 <td width="10%"></td>
 406 <td width="3%">
 407
 408 <p><b>&minus;p</b></p>
 409 </td>
 410 <td width="5%"></td>
 411 <td width="80%">
 412
 413 <p>Do not EOL-align output. This option has effect with
 414 Group 3 encoded output only.</p>
 415 </td>
 416 <td width="0%">
 417 </td>
 418 <tr valign="top" align="left">
 419 <td width="10%"></td>
 420 <td width="3%">
 421
 422 <p><b>&minus;c</b></p>
 423 </td>
 424 <td width="5%"></td>
 425 <td width="80%">
 426
 427 <p>Generate &quot;classic&quot; Group 3 TIFF format.</p>
 428 </td>
 429 <td width="0%">
 430 </td>
 431 <tr valign="top" align="left">
 432 <td width="10%"></td>
 433 <td width="3%">
 434
 435 <p><b>&minus;f</b></p>
 436 </td>
 437 <td width="5%"></td>
 438 <td width="80%">
 439
 440 <p>Generate TIFF Class F (TIFF/F) format (default).</p>
 441 </td>
 442 <td width="0%">
 443 </td>
 444 <tr valign="top" align="left">
 445 <td width="10%"></td>
 446 <td width="3%">
 447
 448 <p><b>&minus;m</b></p>
 449 </td>
 450 <td width="5%"></td>
 451 <td width="80%">
 452
 453 <p>Force output data to have bits filled from most
 454 significant bit ( <small>MSB</small> ) to most least bit (
 455 <small>LSB</small> ).</p>
 456 </td>
 457 <td width="0%">
 458 </td>
 459 <tr valign="top" align="left">
 460 <td width="10%"></td>
 461 <td width="3%">
 462
 463 <p><b>&minus;l</b></p>
 464 </td>
 465 <td width="5%"></td>
 466 <td width="80%">
 467
 468 <p>Force output data to have bits filled from least
 469 significant bit ( <small>LSB</small> ) to most significant
 470 bit ( <small>MSB</small> ) (default).</p>
 471 </td>
 472 <td width="0%">
 473 </td>
 474 <tr valign="top" align="left">
 475 <td width="10%"></td>
 476 <td width="3%">
 477
 478 <p><b>&minus;r</b></p>
 479 </td>
 480 <td width="5%"></td>
 481 <td width="80%">
 482
 483 <p>Specify the number of rows (scanlines) in each strip of
 484 data written to the output file. By default (or when value
 485 <b>0</b> is specified), <i>tiffcp</i> attempts to set the
 486 rows/strip that no more than 8 kilobytes of data appear in a
 487 strip (with except of G3/G4 compression schemes). If you
 488 specify special value <b>&minus;1</b> it will results in
 489 infinite number of the rows per strip. The entire image will
 490 be the one strip in that case. This is default in case of
 491 G3/G4 output compression schemes.</p>
 492 </td>
 493 <td width="0%">
 494 </td>
 495 <tr valign="top" align="left">
 496 <td width="10%"></td>
 497 <td width="3%">
 498
 499 <p><b>&minus;s</b></p>
 500 </td>
 501 <td width="5%"></td>
 502 <td width="80%">
 503
 504 <p>Stretch the input image vertically by writing each input
 505 row of data twice to the output file.</p>
 506 </td>
 507 <td width="0%">
 508 </td>
 509 <tr valign="top" align="left">
 510 <td width="10%"></td>
 511 <td width="3%">
 512
 513 <p><b>&minus;v</b></p>
 514 </td>
 515 <td width="5%"></td>
 516 <td width="80%">
 517
 518 <p>Force <i>fax2tiff</i> to print the number of rows of
 519 data it retrieved from the input file.</p>
 520 </td>
 521 <td width="0%">
 522 </td>
 523 <tr valign="top" align="left">
 524 <td width="10%"></td>
 525 <td width="3%">
 526
 527 <p><b>&minus;z</b></p>
 528 </td>
 529 <td width="5%"></td>
 530 <td width="80%">
 531
 532 <p>Force output to be compressed with the LZW encoding.</p>
 533 </td>
 534 <td width="0%">
 535 </td>
 536 </table>
 537 <a name="DIAGNOSTICS"></a>
 538 <h2>DIAGNOSTICS</h2>
 539 <!-- INDENTATION -->
 540 <table width="100%" border=0 rules="none" frame="void"
 541        cols="2" cellspacing="0" cellpadding="0">
 542 <tr valign="top" align="left">
 543 <td width="8%"></td>
 544 <td width="91%">
 545 <p>The following warnings and errors come from the decoding
 546 routines in the library.</p>
 547 <!-- INDENTATION -->
 548 <p><b>Warning, %s: Premature EOL at scanline %d (x
 549 %d).\n</b>. The input data had a row that was shorter than
 550 the expected width. The row is padded with white.</p>
 551 <!-- INDENTATION -->
 552 <p><b>%s: Premature EOF at scanline %d (x %d).\n</b>. The
 553 decoder ran out of data in the middle of a scanline. The
 554 resultant row is padded with white.</p>
 555 <!-- INDENTATION -->
 556 <p><b>%s: Bad code word at row %d, x %d\n</b>. An invalid
 557 Group 3 <i>code</i> was encountered while decoding the input
 558 file. The row number and horizontal position is given. The
 559 remainder of the input row is discarded, while the
 560 corresponding output row is padded with white.</p>
 561 <!-- INDENTATION -->
 562 <p><b>%s: Bad 2D code word at scanline %d.\n</b>. An invalid
 563 Group 4 or 2D Group 3 <i>code</i> was encountered while
 564 decoding the input file. The row number and horizontal
 565 position is given. The remainder of the input row is
 566 discarded, while the corresponding output row is padded with
 567 white.</p>
 568 </td>
 569 </table>
 570 <a name="BUGS"></a>
 571 <h2>BUGS</h2>
 572 <!-- INDENTATION -->
 573 <table width="100%" border=0 rules="none" frame="void"
 574        cols="2" cellspacing="0" cellpadding="0">
 575 <tr valign="top" align="left">
 576 <td width="8%"></td>
 577 <td width="91%">
 578 <p>Input data are assumed to have a a &lsquo;&lsquo;top
 579 left&rsquo;&rsquo; orientation; it should be possible to
 580 override this assumption from the command line.</p>
 581 </td>
 582 </table>
 583 <a name="SEE ALSO"></a>
 584 <h2>SEE ALSO</h2>
 585 <!-- INDENTATION -->
 586 <table width="100%" border=0 rules="none" frame="void"
 587        cols="2" cellspacing="0" cellpadding="0">
 588 <tr valign="top" align="left">
 589 <td width="8%"></td>
 590 <td width="91%">
 591 <p><b><small>CCITT</small> Recommendation T.4</b>
 592 (Standardization of Group 3 Facsimile Apparatus for Document
 593 Transmission).</p>
 594 <!-- INDENTATION -->
 595 <p><b>The Spirit of TIFF Class F</b>, an appendix to the
 596 TIFF 5.0 specification prepared by Cygnet Technologies.</p>
 597 <!-- INDENTATION -->
 598 <p><b>tiffinfo</b>(1), <b>tiffdither</b>(1),
 599 <b>tiffgt</b>(1), <b>libtiff</b>(3)</p>
 600 <!-- INDENTATION -->
 601 <p>Libtiff library home page:
 602 <b>http://www.remotesensing.org/libtiff/</b></p>
 603 </td>
 604 </table>
 605 <hr>
 606 </body>
 607 </html>