diff options
Diffstat (limited to 'doc/static/man/tiffcrop.1.html')
| -rw-r--r-- | doc/static/man/tiffcrop.1.html | 868 |
1 files changed, 0 insertions, 868 deletions
diff --git a/doc/static/man/tiffcrop.1.html b/doc/static/man/tiffcrop.1.html deleted file mode 100644 index 1007c0bb..00000000 --- a/doc/static/man/tiffcrop.1.html +++ /dev/null @@ -1,868 +0,0 @@ -<!-- Creator : groff version 1.22.4 --> -<!-- CreationDate: Sat Jun 4 16:23:29 2022 --> -<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" -"http://www.w3.org/TR/html4/loose.dtd"> -<html> -<head> -<meta name="generator" content="groff -Thtml, see www.gnu.org"> -<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> -<meta name="Content-Style" content="text/css"> -<style type="text/css"> - p { margin-top: 0; margin-bottom: 0; vertical-align: top } - pre { margin-top: 0; margin-bottom: 0; vertical-align: top } - table { margin-top: 0; margin-bottom: 0; vertical-align: top } - h1 { text-align: center } -</style> -<title>TIFFCROP</title> - -</head> -<body> - -<h1 align="center">TIFFCROP</h1> - -<a href="#NAME">NAME</a><br> -<a href="#SYNOPSIS">SYNOPSIS</a><br> -<a href="#DESCRIPTION">DESCRIPTION</a><br> -<a href="#OPTIONS">OPTIONS</a><br> -<a href="#EXAMPLES">EXAMPLES</a><br> -<a href="#NOTES">NOTES</a><br> -<a href="#SEE ALSO">SEE ALSO</a><br> - -<hr> - - -<h2>NAME -<a name="NAME"></a> -</h2> - - -<p style="margin-left:11%; margin-top: 1em">tiffcrop -− select, copy, crop, convert, extract, and/or process -one or more <small>TIFF</small> files.</p> - -<h2>SYNOPSIS -<a name="SYNOPSIS"></a> -</h2> - - - -<p style="margin-left:11%; margin-top: 1em"><b>tiffcrop</b> -[ <i>options</i> ] <i>src1.tif ... srcN.tif dst.tif</i></p> - -<h2>DESCRIPTION -<a name="DESCRIPTION"></a> -</h2> - - - -<p style="margin-left:11%; margin-top: 1em"><i>Tiffcrop</i> -processes one or more files created according to the Tag -Image File Format, Revision 6.0, specification into one or -more <small>TIFF</small> file(s). <i>Tiffcrop</i> is most -often used to extract portions of an image for processing -with bar code recognizer or OCR software when that software -cannot restrict the region of interest to a specific portion -of the image or to improve efficiency when the regions of -interest must be rotated. It can also be used to subdivide -all or part of a processed image into smaller sections and -export individual images or sections of images as separate -files or separate images within one or more files derived -from the original input image or images.</p> - -<p style="margin-left:11%; margin-top: 1em">The available -functions can be grouped broadly into three classes:</p> - -<p style="margin-left:22%; margin-top: 1em">Those that -select individual images or sections of images from the -input files. The options −N for sequences or lists of -individual images in the input files, −Z for zones, -−z for regions, −X and −Y for fixed sized -selections, −m for margins, −U for units, and -−E for edge reference provide a variety of ways to -specify portions of the input image.</p> - -<p style="margin-left:22%; margin-top: 1em">Those that -allow the individual images or selections to be exported to -one or more output files in different groupings and control -the organization of the data in the output images. The -options −P for page size grouping, −S for -subdivision into columns and rows and −e for export -mode options that produce one or more files from each input -image. The options −r, −s, −t, −w -control strip and tile format and sizes while −B -−L −c −f modify the endian addressing -scheme, the compression options, and the bit fill sequence -of images as they are written.</p> - -<p style="margin-left:22%; margin-top: 1em">Those that -perform some action on each image that is selected from the -input file. The options include −R for rotate, -−I for inversion of the photometric interpretation -and/or data values, and −F to flip (mirror) the image -horizontally or vertically.</p> - -<p style="margin-left:11%; margin-top: 1em">Functions are -applied to the input image(s) in the following order: -cropping, fixed area extraction, zone and region extraction, -inversion, mirroring, rotation.</p> - -<p style="margin-left:11%; margin-top: 1em">Functions are -applied to the output image(s) in the following order: -export mode options for grouping zones, regions, or images -into one or more files, <i>or</i> row and column divisions -with output margins, <i>or</i> page size divisions with page -orientation options.</p> - -<p style="margin-left:11%; margin-top: 1em">Finally, strip, -tile, byte order, output resolution, and compression options -are applied to all output images.</p> - -<p style="margin-left:11%; margin-top: 1em">The output -file(s) may be organized and compressed using a different -algorithm from the input files. By default, <i>tiffcrop</i> -will copy all the understood tags in a <small>TIFF</small> -directory of an input file to the associated directory in -the output file. Options can be used to force the resultant -image to be written as strips or tiles of data, -respectively.</p> - - -<p style="margin-left:11%; margin-top: 1em"><i>Tiffcrop</i> -can be used to reorganize the storage characteristics of -data in a file, and to reorganize, extract, rotate, and -otherwise process the image data as specified at the same -time whereas tiffcp does not alter the image data within the -file.</p> - -<p style="margin-left:11%; margin-top: 1em">Using the -options for selecting individual input images and the -options for exporting images and/or segments defined as -zones or regions of each input image, <i>tiffcrop</i> can -perform the functions of tiffcp and tiffsplit in a single -pass while applying multiple operations to individual -selections or images.</p> - -<h2>OPTIONS -<a name="OPTIONS"></a> -</h2> - - -<table width="100%" border="0" rules="none" frame="void" - cellspacing="0" cellpadding="0"> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="3%"> - - -<p style="margin-top: 1em"><b>−h</b></p></td> -<td width="8%"></td> -<td width="78%"> - - -<p style="margin-top: 1em">Display the syntax summary for -tiffcrop.</p> </td></tr> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="3%"> - - -<p><b>−v</b></p></td> -<td width="8%"></td> -<td width="78%"> - - -<p>Report the current version and last modification date -for tiffcrop.</p></td></tr> -</table> - -<p style="margin-left:11%;"><b>−N -odd|even|#,#−#,#|last</b></p> - -<p style="margin-left:22%;">Specify one or more series or -range(s) of images within each file to process. The words -<b>odd</b> or <b>even</b> may be used to specify all odd or -even numbered images counting from one. Note that -internally, TIFF images are numbered from zero rather than -one but since this convention is not obvious to most users, -tiffcrop used 1 to specify the first image in a multipage -file. The word <b>last</b> may be used in place of a number -in the sequence to indicate the final image in the file -without knowing how many images there are. Ranges of images -may be specified with a dash and multiple sets can be -indicated by joining them in a comma−separated list. -eg. use <b>−N 1,5−7,last</b> to process the 1st, -5th through 7th, and final image in the file.</p> - -<p style="margin-left:11%;"><b>−E -top|bottom|left|right</b></p> - -<p style="margin-left:22%;">Specify the top, bottom, left, -or right edge as the reference from which to calculate the -width and length of crop regions or sequence of positions -for zones. When used with the −e option for exporting -zones or regions, the reference edge determines how -composite images are arranged. Using −E left or right -causes successive zones or regions to be merged horizontally -whereas using −E top or bottom causes successive zones -or regions to be arranged vertically. This option has no -effect on export layout when multiple zones or regions are -not being exported to composite images. Edges may be -abbreviated to the first letter.</p> - -<p style="margin-left:11%;"><b>−e -combined|divided|image|multiple|separate</b></p> - -<p style="margin-left:22%;">Specify the export mode for -images and selections from input images. The final filename -on the command line is considered to be the destination file -or filename stem for automatically generated sequences of -files. Modes may be abbreviated to the first letter.</p> - -<p style="margin-left:22%; margin-top: 1em">combined All -images and selections are written to a single file with -multiple selections from one image combined into a single -image (default)</p> - -<p style="margin-left:22%; margin-top: 1em">divided All -images and selections are written to a single file with each -selection from one image written to a new image</p> - -<p style="margin-left:22%; margin-top: 1em">image Each -input image is written to a new file (numeric filename -sequence) with multiple selections from the image combined -into one image</p> - -<p style="margin-left:22%; margin-top: 1em">multiple Each -input image is written to a new file (numeric filename -sequence) with each selection from the image written to a -new image</p> - -<p style="margin-left:22%; margin-top: 1em">separate -Individual selections from each image are written to -separate files</p> - -<p style="margin-left:11%;"><b>−U in|cm|px</b></p> - -<p style="margin-left:22%;">Specify the type of units to -apply to dimensions for margins and crop regions for input -and output images. Inches or centimeters are converted to -pixels using the resolution unit specified in the TIFF file -(which defaults to inches if not specified in the IFD).</p> - -<p style="margin-left:11%;"><b>−m #,#,#,#</b></p> - -<p style="margin-left:22%;">Specify margins to be removed -from the input image. The order must be top, left, bottom, -right with only commas separating the elements of the list. -Margins are scaled according to the current units and -removed before any other extractions are computed..</p> - -<table width="100%" border="0" rules="none" frame="void" - cellspacing="0" cellpadding="0"> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="6%"> - - -<p><b>−X #</b></p></td> -<td width="5%"></td> -<td width="78%"> - - -<p>Set the horizontal (X−axis) dimension of a region -to extract relative to the specified origin reference. If -the origin is the top or bottom edge, the X axis value will -be assumed to start at the left edge.</p></td></tr> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="6%"> - - -<p><b>−Y #</b></p></td> -<td width="5%"></td> -<td width="78%"> - - -<p>Set the vertical (Y−axis) dimension of a region to -extract relative to the specified origin reference. If the -origin is the left or right edge, the Y axis value will be -assumed to start at the top.</p></td></tr> -</table> - -<p style="margin-left:11%;"><b>−Z #:#,#:#</b></p> - -<p style="margin-left:22%;">Specify zones of the image -designated as position X of Y equal sized portions measured -from the reference edge, eg 1:3 would be first third of the -image starting from the reference edge minus any margins -specified for the confining edges. Multiple zones can be -specified as a comma separated list but they must reference -the same edge. To extract the top quarter and the bottom -third of an image you would use <b>−Z 1:4,3:3.</b></p> - -<p style="margin-left:11%;"><b>−z x1,y1,x2,y2: ... -:xN,yN,xN+1,yN+1</b></p> - -<p style="margin-left:22%;">Specify a series of coordinates -to define regions for processing and exporting. The -coordinates represent the top left and lower right corners -of each region in the current units, eg inch, cm, or pixels. -Pixels are counted from one to width or height and inches or -cm are calculated from image resolution data.</p> - -<p style="margin-left:22%; margin-top: 1em">Each colon -delimited series of four values represents the horizontal -and vertical offsets from the top and left edges of the -image, regardless of the edge specified with the −E -option. The first and third values represent the horizontal -offsets of the corner points from the left edge while the -second and fourth values represent the vertical offsets from -the top edge.</p> - -<p style="margin-left:11%;"><b>−F horiz|vert</b></p> - -<p style="margin-left:22%;">Flip, ie mirror, the image or -extracted region horizontally or vertically.</p> - -<p style="margin-left:11%;"><b>−R 90|180|270</b></p> - -<p style="margin-left:22%;">Rotate the image or extracted -region 90, 180, or 270 degrees clockwise.</p> - -<p style="margin-left:11%;"><b>−I -[black|white|data|both]</b></p> - -<p style="margin-left:22%;">Invert color space, eg dark to -light for bilevel and grayscale images. This can be used to -modify negative images to positive or to correct images that -have the PHOTOMETRIC_INTERPRETATIN tag set incorrectly. If -the value is black or white, the PHOTOMETRIC_INTERPRETATION -tag is set to MinIsBlack or MinIsWhite, without altering the -image data. If the argument is data or both, the data values -of the image are modified. Specifying both inverts the data -and the PHOTOMETRIC_INTERPRETATION tag, whereas using data -inverts the data but not the PHOTOMETRIC_INTERPRETATION tag. -No support for modifying the color space of color images in -this release.</p> - -<table width="100%" border="0" rules="none" frame="void" - cellspacing="0" cellpadding="0"> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="6%"> - - -<p><b>−H #</b></p></td> -<td width="5%"></td> -<td width="78%"> - - -<p>Set the horizontal resolution of output images to # -expressed in the current units.</p></td></tr> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="6%"> - - -<p><b>−V #</b></p></td> -<td width="5%"></td> -<td width="78%"> - - -<p>Set the vertical resolution of the output images to # -expressed in the current units.</p></td></tr> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="6%"> - - -<p><b>−J #</b></p></td> -<td width="5%"></td> -<td width="78%"> - - -<p>Set the horizontal margin of an output page size to # -expressed in the current units when sectioning image into -columns x rows subimages using the −S cols:rows -option.</p> </td></tr> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="6%"> - - -<p><b>−K #</b></p></td> -<td width="5%"></td> -<td width="78%"> - - -<p>Set the vertical margin of an output page size to # -expressed in the current units when sectioning image into -columns x rows submiages using the −S cols:rows -option.</p> </td></tr> -</table> - -<p style="margin-left:11%;"><b>−O -portrait|landscape|auto</b></p> - -<p style="margin-left:22%;">Set the output orientation of -the pages or sections. Auto will use the arrangement that -requires the fewest pages. This option is only meaningful in -conjunction with the -P option to format an image to fit on -a specific paper size.</p> - -<p style="margin-left:11%;"><b>−P page</b></p> - -<p style="margin-left:22%;">Format the output images to fit -on page size paper. Use −P list to show the supported -page sizes and dimensions. You can define a custom page size -by entering the width and length of the page in the current -units with the following format #.#x#.#.</p> - -<p style="margin-left:11%;"><b>−S cols:rows</b></p> - -<p style="margin-left:22%;">Divide each image into cols -across and rows down equal sections.</p> - -<table width="100%" border="0" rules="none" frame="void" - cellspacing="0" cellpadding="0"> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="3%"> - - -<p><b>−B</b></p></td> -<td width="8%"></td> -<td width="78%"> - - -<p>Force output to be written with Big−Endian byte -order. This option only has an effect when the output file -is created or overwritten and not when it is appended -to.</p> </td></tr> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="3%"> - - -<p><b>−C</b></p></td> -<td width="8%"></td> -<td width="78%"> - - -<p>Suppress the use of ‘‘strip -chopping’’ when reading images that have a -single strip/tile of uncompressed data.</p></td></tr> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="3%"> - - -<p><b>−c</b></p></td> -<td width="8%"></td> -<td width="78%"> - - -<p>Specify the compression to use for data written to the -output file: <b>none</b> for no compression, <b>packbits</b> -for PackBits compression, <b>lzw</b> for Lempel−Ziv -& Welch compression, <b>jpeg</b> for baseline JPEG -compression. <b>zip</b> for Deflate compression, <b>g3</b> -for CCITT Group 3 (T.4) compression, and <b>g4</b> for CCITT -Group 4 (T.6) compression. By default <i>tiffcrop</i> will -compress data according to the value of the -<i>Compression</i> tag found in the source file.</p></td></tr> -</table> - -<p style="margin-left:22%; margin-top: 1em">The -<small>CCITT</small> Group 3 and Group 4 compression -algorithms can only be used with bilevel data.</p> - -<p style="margin-left:22%; margin-top: 1em">Group 3 -compression can be specified together with several -T.4−specific options: <b>1d</b> for -1−dimensional encoding, <b>2d</b> for -2−dimensional encoding, and <b>fill</b> to force each -encoded scanline to be zero−filled so that the -terminating EOL code lies on a byte boundary. Group -3−specific options are specified by appending a -‘‘:’’−separated list to the -‘‘g3’’ option; e.g. <b>−c -g3:2d:fill</b> to get 2D−encoded data with -byte−aligned EOL codes.</p> - - -<p style="margin-left:22%; margin-top: 1em"><small>LZW</small> -compression can be specified together with a -<i>predictor</i> value. A predictor value of 2 causes each -scanline of the output image to undergo horizontal -differencing before it is encoded; a value of 1 forces each -scanline to be encoded without differencing. -LZW−specific options are specified by appending a -‘‘:’’−separated list to the -‘‘lzw’’ option; e.g. <b>−c -lzw:2</b> for <small>LZW</small> compression with horizontal -differencing.</p> - -<table width="100%" border="0" rules="none" frame="void" - cellspacing="0" cellpadding="0"> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="3%"> - - -<p style="margin-top: 1em"><b>−f</b></p></td> -<td width="8%"></td> -<td width="78%"> - - -<p style="margin-top: 1em">Specify the bit fill order to -use in writing output data. By default, <i>tiffcrop</i> will -create a new file with the same fill order as the original. -Specifying <b>−f lsb2msb</b> will force data to be -written with the FillOrder tag set to -<small>LSB2MSB,</small> while <b>−f msb2lsb</b> will -force data to be written with the FillOrder tag set to -<small>MSB2LSB.</small></p> </td></tr> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="3%"> - - -<p><b>−i</b></p></td> -<td width="8%"></td> -<td width="78%"> - - -<p>Ignore non−fatal read errors and continue -processing of the input file.</p></td></tr> -</table> - -<p style="margin-left:11%;"><b>−k size</b></p> - -<p style="margin-left:22%;">Set maximum memory allocation -size (in MiB). The default is 256MiB. Set to 0 to disable -the limit.</p> - -<table width="100%" border="0" rules="none" frame="void" - cellspacing="0" cellpadding="0"> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="3%"> - - -<p><b>−l</b></p></td> -<td width="8%"></td> -<td width="78%"> - - -<p>Specify the length of a tile (in pixels). -<i>Tiffcrop</i> attempts to set the tile dimensions so that -no more than 8 kilobytes of data appear in a tile.</p></td></tr> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="3%"> - - -<p><b>−L</b></p></td> -<td width="8%"></td> -<td width="78%"> - - -<p>Force output to be written with Little−Endian byte -order. This option only has an effect when the output file -is created or overwritten and not when it is appended -to.</p> </td></tr> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="3%"> - - -<p><b>−M</b></p></td> -<td width="8%"></td> -<td width="78%"> - - -<p>Suppress the use of memory−mapped files when -reading images.</p></td></tr> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="3%"> - - -<p><b>−p</b></p></td> -<td width="8%"></td> -<td width="78%"> - - -<p>Specify the planar configuration to use in writing image -data that has more than one sample per pixel. By default, -<i>tiffcrop</i> will create a new file with the same planar -configuration as the original. Specifying <b>−p -contig</b> will force data to be written with -multi−sample data packed together, while <b>−p -separate</b> will force samples to be written in separate -planes.</p> </td></tr> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="3%"> - - -<p><b>−r</b></p></td> -<td width="8%"></td> -<td width="78%"> - - -<p>Specify the number of rows (scanlines) in each strip of -data written to the output file. By default (or when value -<b>0</b> is specified), <i>tiffcrop</i> attempts to set the -rows/strip that no more than 8 kilobytes of data appear in a -strip. If you specify the special value <b>−1</b> it -will results in infinite number of the rows per strip. The -entire image will be the one strip in that case.</p></td></tr> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="3%"> - - -<p><b>−s</b></p></td> -<td width="8%"></td> -<td width="78%"> - - -<p>Force the output file to be written with data organized -in strips (rather than tiles).</p></td></tr> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="3%"> - - -<p><b>−t</b></p></td> -<td width="8%"></td> -<td width="78%"> - - -<p>Force the output file to be written with data organized -in tiles (rather than strips).</p></td></tr> -<tr valign="top" align="left"> -<td width="11%"></td> -<td width="3%"> - - -<p><b>−w</b></p></td> -<td width="8%"></td> -<td width="78%"> - - -<p>Specify the width of a tile (in pixels). <i>tiffcrop</i> -attempts to set the tile dimensions so that no more than 8 -kilobytes of data appear in a tile. <i>tiffcrop</i> attempts -to set the tile dimensions so that no more than 8 kilobytes -of data appear in a tile.</p></td></tr> -</table> - -<p style="margin-left:11%;">Debug and dump facility</p> - -<p style="margin-left:22%;"><b>−D -opt1:value1,opt2:value2,opt3:value3:opt4:value4</b> Display -program progress and/or dump raw data to non−TIFF -files. Options include the following and must be joined as a -comma separated list. The use of this option is generally -limited to program debugging and development of future -options. An equal sign may be substituted for the colon in -option:value pairs.</p> - -<p style="margin-left:22%; margin-top: 1em">debug:N Display -limited program progress indicators where larger N increase -the level of detail.</p> - -<p style="margin-left:22%; margin-top: 1em">format:txt|raw -Format any logged data as ASCII text or raw binary values. -ASCII text dumps include strings of ones and zeroes -representing the binary values in the image data plus -identifying headers.</p> - -<p style="margin-left:22%; margin-top: 1em">level:N Specify -the level of detail presented in the dump files. This can -vary from dumps of the entire input or output image data to -dumps of data processed by specific functions. Current range -of levels is 1 to 3.</p> - - -<p style="margin-left:22%; margin-top: 1em">input:full−path−to−directory/input−dumpname</p> - - -<p style="margin-left:22%; margin-top: 1em">output:full−path−to−directory/output−dumpname</p> - -<p style="margin-left:22%; margin-top: 1em">When dump files -are being written, each image will be written to a separate -file with the name built by adding a numeric sequence value -to the dumpname and an extension of .txt for ASCII dumps or -.bin for binary dumps.</p> - -<p style="margin-left:22%; margin-top: 1em">The four -debug/dump options are independent, though it makes little -sense to specify a dump file without specifying a detail -level.</p> - -<p style="margin-left:22%; margin-top: 1em">Note: Tiffcrop -may be compiled with -DDEVELMODE to enable additional very -<br> -low level debug reporting.</p> - -<h2>EXAMPLES -<a name="EXAMPLES"></a> -</h2> - - -<p style="margin-left:11%; margin-top: 1em">The following -concatenates two files and writes the result using -<small>LZW</small> encoding:</p> - -<p style="margin-left:22%;">tiffcrop −c lzw a.tif -b.tif result.tif</p> - -<p style="margin-left:11%; margin-top: 1em">To convert a G3 -1d−encoded <small>TIFF</small> to a single strip of -G4−encoded data the following might be used:</p> - -<p style="margin-left:22%;">tiffcrop −c g4 −r -10000 g3.tif g4.tif</p> - -<p style="margin-left:11%;">(1000 is just a number that is -larger than the number of rows in the source file.)</p> - -<p style="margin-left:11%; margin-top: 1em">To extract a -selected set of images from a multi−image TIFF file -use the −N option described above. Thus, to copy the -1st and 3rd images of image file "album.tif" to -"result.tif":</p> - -<p style="margin-left:22%;">tiffcrop −N 1,3 album.tif -result.tif</p> - -<p style="margin-left:11%; margin-top: 1em">Invert a -bilevel image scan of a microfilmed document and crop off -margins of 0.25 inches on the left and right, 0.5 inch on -the top, and 0.75 inch on the bottom. From the remaining -portion of the image, select the second and third quarters, -ie, one half of the area left from the center to each -margin.</p> - -<p style="margin-left:22%;">tiffcrop −U in −m -0.5,0.25,0.75,0.25 −E left −Z 2:4,3:4 −I -both MicrofilmNegative.tif MicrofilmPostiveCenter.tif</p> - -<p style="margin-left:11%; margin-top: 1em">Extract only -the final image of a large Architectural E sized multipage -TIFF file and rotate it 90 degrees clockwise while -reformatting the output to fit on tabloid sized sheets with -one quarter of an inch on each side:</p> - -<p style="margin-left:22%;">tiffcrop −N last −R -90 −O auto −P tabloid −U in −J 0.25 -−K 0.25 −H 300 −V 300 -Big−PlatMap.tif BigPlatMap−Tabloid.tif</p> - -<p style="margin-left:11%;">The output images will have a -specified resolution of 300 dpi in both directions. The -orientation of each page will be determined by whichever -choice requires the fewest pages. To specify a specific -orientation, use the portrait or landscape option. The paper -size option does not resample the image. It breaks each -original image into a series of smaller images that will fit -on the target paper size at the specified resolution.</p> - -<p style="margin-left:11%; margin-top: 1em">Extract two -regions 2048 pixels wide by 2048 pixels high from each page -of a multi−page input file and write each region to a -separate output file.</p> - -<p style="margin-left:22%;">tiffcrop −U px −z -1,1,2048,2048:1,2049,2048,4097 −e separate -CheckScans.tiff Check</p> - -<p style="margin-left:11%;">The output file names will use -the stem Check with a numeric suffix which is incremented -for each region of each image, eg Check−001.tiff, -Check−002.tiff ... Check−NNN.tiff. To produce a -unique file for each page of the input image with one new -image for each region of the input image on that page, -change the export option to −e multiple.</p> - -<h2>NOTES -<a name="NOTES"></a> -</h2> - - -<p style="margin-left:11%; margin-top: 1em">In general, -bilevel, grayscale, palette and RGB(A) data with bit depths -from 1 to 32 bits should work in both interleaved and -separate plane formats. Unlike tiffcp, tiffcrop can read and -write tiled images with bits per sample that are not a -multiple of 8 in both interleaved and separate planar -format. Floating point data types are supported at bit depts -of 16, 24, 32 and 64 bits per sample.</p> - -<p style="margin-left:11%; margin-top: 1em">Not all images -can be converted from one compression scheme to another. -Data with some photometric interpretations and/or bit depths -are tied to specific compression schemes and vice-versa, -e.g. Group 3/4 compression is only usable for bilevel data. -JPEG compression is only usable on 8 bit per sample data (or -12 bit if <i>LibTIFF</i> was compiled with 12 bit JPEG -support). Support for OJPEG compressed images is problematic -at best. Since OJPEG compression is no longer supported for -writing images with LibTIFF, these images will be updated to -the newer JPEG compression when they are copied or -processed. This may cause the image to appear color shifted -or distorted after conversion. In some cases, it is possible -to remove the original compression from image data using the -option -cnone.</p> - -<p style="margin-left:11%; margin-top: 1em">Tiffcrop does -not currently provide options to up or downsample data to -different bit depths or convert data from one photometric -interpretation to another, e.g. 16 bits per sample to 8 bits -per sample or RGB to grayscale.</p> - -<p style="margin-left:11%; margin-top: 1em">Tiffcrop is -very loosely derived from code in <i>tiffcp</i> with -extensive modifications and additions to support the -selection of input images and regions and the exporting of -them to one or more output files in various groupings. The -image manipulation routines are entirely new and additional -ones may be added in the future. It will handle tiled images -with bit depths that are not a multiple of eight that tiffcp -may refuse to read.</p> - - -<p style="margin-left:11%; margin-top: 1em"><i>Tiffcrop</i> -was designed to handle large files containing many moderate -sized images with memory usage that is independent of the -number of images in the file. In order to support -compression modes that are not based on individual -scanlines, e.g. JPEG, it now reads images by strip or tile -rather than by individual scanlines. In addition to the -memory required by the input and output buffers associated -with <i>LibTIFF</i> one or more buffers at least as large as -the largest image to be read are required. The design favors -large volume document processing uses over scientific or -graphical manipulation of large datasets as might be found -in research or remote sensing scenarios.</p> - -<h2>SEE ALSO -<a name="SEE ALSO"></a> -</h2> - - - -<p style="margin-left:11%; margin-top: 1em"><b>pal2rgb</b>(1), -<b>tiffinfo</b>(1), <b>tiffcmp</b>(1), <b>tiffcp</b>(1), -<b>tiffmedian</b>(1), <b>tiffsplit</b>(1), -<b>libtiff</b>(3TIFF)</p> - -<p style="margin-left:11%; margin-top: 1em">Libtiff library -home page: <b>http://www.simplesystems.org/libtiff/</b></p> -<hr> -</body> -</html> |