https://github.com/libsdl-org/libtiff/commit/f50119f40619c14f2959c7ed2df9063a90bc4123
From f50119f40619c14f2959c7ed2df9063a90bc4123 Mon Sep 17 00:00:00 2001
From: Frank Warmerdam <[EMAIL REDACTED]>
Date: Wed, 31 Dec 2008 17:32:52 +0000
Subject: [PATCH] major update from Richard Nolde
---
ChangeLog | 5 +
man/tiffcrop.1 | 454 ++-
tools/tiffcrop.c | 7850 +++++++++++++++++++++++++++++++++++-----------
3 files changed, 6330 insertions(+), 1979 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 5d009554..67399794 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2008-12-31 Frank Warmerdam <warmerdam@pobox.com>
+
+ * tools/tiffcrop.c, man/tiffcrop.1: A major update from Richard
+ Nolde.
+
2008-12-21 Frank Warmerdam <warmerdam@pobox.com>
* libtiff/tif_jpeg.c: Avoid errors if the application writes a full
diff --git a/man/tiffcrop.1 b/man/tiffcrop.1
index 29bacb21..4430fb89 100644
--- a/man/tiffcrop.1
+++ b/man/tiffcrop.1
@@ -1,11 +1,11 @@
-.\" $Id: tiffcrop.1,v 1.1.2.1 2007-04-06 14:26:08 dron Exp $
+.\" $Id: tiffcrop.1,v 1.1.2.2 2008-12-31 17:32:52 fwarmerdam Exp $
.\" tiffcrop -- a port of tiffcp.c extended to include cropping of selections
-.\"
+.\"
.\" Original code:
-.\"
+.\"
.\" Copyright (c) 1988-1997 Sam Leffler
.\" Copyright (c) 1991-1997 Silicon Graphics, Inc.
-.\"
+.\"
.\" Permission to use, copy, modify, distribute, and sell this software and
.\" its documentation for any purpose is hereby granted without fee, provided
.\" that (i) the above copyright notices and this permission notice appear in
@@ -24,82 +24,78 @@
.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
.\" OF THIS SOFTWARE.
-.\"
-.\" Richard Nolde Updated 3/2007 Add support for the options below to extract
-.\" sections of image(s) and to modify the whole image or selected portion
-.\" with rotations, mirroring, and colorscale/colormap inversion of selected
-.\" types of TIFF images when appropriate
-.\"
-.\" Options:
-.\" -U units [in, cm, px ] inches, centimeters or pixels
-.\" -H # set horizontal resolution of output images to #
-.\" -V # set vertical resolution of output images to #
-.\" -J # set horizontal margin of output page to # expressed in current units
-.\" -K # set vertical margin of output page to # expressed in current units
-.\" -X # horizontal dimension of region to extract expressed in current units
-.\" -Y # vertical dimension of region to extract expressed in current units
-.\" -O orient orientation for output image, portrait, landscape, auto
-.\" -P page page size for output image segments, eg letter, legal, tabloid, etc.
-.\" -S cols:rows divide the image into equal sized segments using cols across and rows down
-.\" -X # horizontal dimension of region to extract expressed in current units
-.\" -Y # vertical dimension of region to extract expressed in current units
-.\" -E t|l|r|b edge to use as origin
-.\" -m #,#,#,# margins from edges for selection: top, left, bottom, right (comma separated)
-.\" -Z #:#,#:# up to 32 zones of the image designated as zone X of Y,
-.\" eg 1:3 would be first of three equal portions measured from reference edge
-.\" -N odd|even|#,#-#,#|last sequences and ranges of images within file to process
-.\" the words odd or even may be used to specify all odd or even numbered images
-.\" the word last 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
-.\" -R # rotate image or crop selection by 90,180,or 270 degrees clockwise
-.\" -F h|v flip (mirror) image or crop selection horizontally or vertically
-.\" -I invert the colormap, black to white, for bilevel and grayscale images
-.\"
-.if n .po 0
-.TH TIFFCROP 1 "April 06, 2007" "libtiff"
-.SH NAME
-tiffcrop \- copy, convert, crop, extract, or process a
+.\"
+.\" Additional code Copyright (c) 2006-2009 Richard Nolde
+.\" Lasted Updated 12/2008
+.\" .if n .po 0
+.TH "TIFFCROP" "1" "December, 2008" "libtiff" ""
+.SH "NAME"
+tiffcrop \- select, copy, crop, convert, extract, and/or process one or more
.SM TIFF
-file
-.SH SYNOPSIS
+files.
+.SH "SYNOPSIS"
.B tiffcrop
[
.I options
]
.I "src1.tif ... srcN.tif dst.tif"
-.SH DESCRIPTION
+.SH "DESCRIPTION"
.I tiffcrop
-combines one or more files created according
-to the Tag Image File Format, Revision 6.0
-into a single
+processes one or more files created according
+to the Tag Image File Format, Revision 6.0, specification
+into one or more
.SM TIFF
-file.
-The output file may be compressed using a different
-algorithm than the input files.
-.I tiffcrop
+file(s).
+.I Tiffcrop
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.
-.PP
-Functions are applied to the input image in the following order:
-.RS
-.nf
-cropping, fixed area extraction, zones, inversion, mirroring, rotation.
-.fi
-.RE
-.TP
-Functions are applied to the output image in the following order:
-.RS
-output resolution, output margins, rows and columns
-.B or
-page size divisions, orientation options, strip, tile, byte order,
-and compression options.
-.fi
-.RE
-.PP
+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.
+.PP
+The available functions can be grouped broadly into three classes:
+.IP
+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.
+.IP
+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.
+.IP
+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.
+.PP
+
+Functions are applied to the input image(s) in the following order:
+cropping, fixed area extraction, zone and region extraction,
+inversion, mirroring, rotation.
+.PP
+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
+row and column divisions with output margins,
+.I or
+page size divisions with page orientation options.
+.PP
+Finally, strip, tile, byte order, output resolution, and compression options are
+applied to all output images.
+.PP
+The output file(s) may be organized and compressed using a different
+algorithm from the input files.
By default,
.I tiffcrop
will copy all the understood tags in a
@@ -107,57 +103,98 @@ will copy all the understood tags in a
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.
-.PP
-.I tiffcrop
+.PP
+.I Tiffcrop
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 itself.
-.PP
-.SH OPTIONS
-.TP
-.B \-N odd|even|#,#-#,#|last
-Specify one or more series or range(s) of images within file to process.
+tiffcp does not alter the image data within the file.
+.PP
+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
+can perform the functions of tiffcp and tiffsplit in a single pass
+while applying multiple operations to individual selections or images.
+.PP
+.SH "OPTIONS"
+.TP
+.B \-h
+Display the syntax summary for tiffcrop.
+.TP
+.B \-v
+Report the current version and last modification date for tiffcrop.
+.TP
+.B \-N odd|even|#,#\-#,#|last
+Specify one or more series or range(s) of images within each file to process.
The words
.B odd
or
.B even
-may be used to specify all odd or even numbered images. The word
+may be used to specify all odd or even numbered images couting from one.
+ The word
.B last
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
+can be indicated by joining them in a comma\-separated list. eg. use
+.B \-N 1,5\-7,last
to process the 1st, 5th through 7th, and final image in the file.
-.TP
+.TP
.B \-E top|bottom|left|right
Specify the top, bottom, left, or right edge as the reference from
which to calcuate the width and length of crop regions or sequence
-of postions for zones. May be abbreviated to first letter.
-.TP
+of postions 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.
+.TP
+.B \-e combined|divided|image|multiple|separate
+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.
+.IP
+combined All images and selections are written to a single file with
+multiple selections from one image combined into a single image (default)
+.IP
+divided All images and selections are written to a single file
+with each selection from one image written to a new image
+.IP
+image Each input image is written to a new file (numeric filename sequence)
+with multiple selections from the image combined into one image
+.IP
+multiple Each input image is written to a new file (numeric filename sequence)
+with each selection from the image written to a new image
+.IP
+separate Individual selections from each image are written to separate files
+.TP
.B \-U in|cm|px
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).
-.TP
+.TP
.B \-m #,#,#,#
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. Captial M was in use.
-.TP
+removed before any other extractions are computed..
+.TP
.B \-X #
-Set the horizontal (X-axis) dimension of a region to extract relative to
+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.
-.TP
+.TP
.B \-Y #
-Set the vertical (Y-axis) dimension of a region to extract relative to
+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.
-.TP
+.TP
.B \-Z #:#,#:#
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
@@ -166,54 +203,74 @@ 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.
-.TP
+.TP
+.B \-z x1,y1,x2,y2: ... :xN,yN,xN+1,yN+1
+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.
+
+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.
+.TP
.B \-F horiz|vert
Flip, ie mirror, the image or extracted region horizontally or vertically.
-.TP
+.TP
.B \-R 90|180|270
Rotate the image or extracted region 90, 180, or 270 degrees clockwise.
-.TP
-.B \-I
-Invert the colorspace values for grayscale and bilevel images. This
-would be used to correct negative images that have incorrect PHOTMETRIC
-INTERPRETATION tags. No support for color images.
-.TP
+.TP
+.B \\-I [black|white|data|both]
+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.
+.TP
.B \-H #
Set the horizontal resolution of output images to #
expressed in the current units.
-.TP
+.TP
.B \-V #
Set the vertical resolution of the output images to #
expressed in the current units.
-.TP
+.TP
.B \-J #
Set the horizontal margin of an output page size to #
expressed in the current units.
-.TP
+.TP
.B \-K #
Set the vertical margin of an output page size to #
expressed in the current units.
-.TP
+.TP
.B \-O portrait|landscape|auto
Set the output orientation of the pages or sections.
Auto will use the arrangement that requires the fewest pages.
-.TP
-.B \-S cols:rows
-Divide each image into cols across and rows down equal sections.
-.TP
+This option is only meaningful in conjunction with the -P
+option to format an image to fit on a specific paper size.
+.TP
.B \-P page
Format the output images to fit on page size paper. Use
--P list to show the supported page sizes and dimensions.
-.TP
+\-P list to show the supported page sizes and dimensions.
+.TP
+.B \-S cols:rows
+Divide each image into cols across and rows down equal sections.
+.TP
.B \-B
-Force output to be written with Big-Endian byte order.
+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.
-.TP
+.TP
.B \-C
Suppress the use of ``strip chopping'' when reading images
that have a single strip/tile of uncompressed data.
-.TP
+.TP
.B \-c
Specify the compression to use for data written to the output file:
.B none
@@ -221,7 +278,7 @@ for no compression,
.B packbits
for PackBits compression,
.B lzw
-for Lempel-Ziv & Welch compression,
+for Lempel\-Ziv & Welch compression,
.B jpeg
for baseline JPEG compression,
.B zip
@@ -236,27 +293,27 @@ By default
will compress data according to the value of the
.I Compression
tag found in the source file.
-.IP
+.IP
The
.SM CCITT
Group 3 and Group 4 compression algorithms can only
be used with bilevel data.
-.IP
+.IP
Group 3 compression can be specified together with several
-T.4-specific options:
+T.4\-specific options:
.B 1d
-for 1-dimensional encoding,
+for 1\-dimensional encoding,
.B 2d
-for 2-dimensional encoding,
+for 2\-dimensional encoding,
and
.B fill
-to force each encoded scanline to be zero-filled so that the
+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
+Group 3\-specific options are specified by appending a ``:''\-separated
list to the ``g3'' option; e.g.
.B "\-c g3:2d:fill"
-to get 2D-encoded data with byte-aligned EOL codes.
-.IP
+to get 2D\-encoded data with byte\-aligned EOL codes.
+.IP
.SM LZW
compression can be specified together with a
.I predictor
@@ -265,13 +322,13 @@ 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
+LZW\-specific options are specified by appending a ``:''\-separated
list to the ``lzw'' option; e.g.
.B "\-c lzw:2"
for
.SM LZW
compression with horizontal differencing.
-.TP
+.TP
.B \-f
Specify the bit fill order to use in writing output data.
By default,
@@ -285,38 +342,38 @@ while
.B "\-f msb2lsb"
will force data to be written with the FillOrder tag set to
.SM MSB2LSB.
-.TP
+.TP
.B \-i
-Ignore non-fatal read errors and continue processing of the input file.
-.TP
+Ignore non\-fatal read errors and continue processing of the input file.
+.TP
.B \-l
Specify the length of a tile (in pixels).
-.I tiffcrop
+.I Tiffcrop
attempts to set the tile dimensions so
that no more than 8 kilobytes of data appear in a tile.
-.TP
+.TP
.B \-L
-Force output to be written with Little-Endian byte order.
+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.
-.TP
+.TP
.B \-M
-Suppress the use of memory-mapped files when reading images.
-.TP
+Suppress the use of memory\-mapped files when reading images.
+.TP
.B \-p
Specify the planar configuration to use in writing image data
-that has more than one 8-bit sample per pixel.
+that has more than one sample per pixel.
By default,
.I tiffcrop
will create a new file with the same planar configuration as
the original.
Specifying
.B "\-p contig"
-will force data to be written with multi-sample data packed
+will force data to be written with multi\-sample data packed
together, while
.B "\-p separate"
will force samples to be written in separate planes.
-.TP
+.TP
.B \-r
Specify the number of rows (scanlines) in each strip of data
written to the output file.
@@ -326,18 +383,18 @@ is specified),
.I tiffcrop
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 \-1
it will results in infinite number of the rows per strip. The entire image
will be the one strip in that case.
-.TP
+.TP
.B \-s
Force the output file to be written with data organized in strips
(rather than tiles).
-.TP
+.TP
.B \-t
Force the output file to be written with data organized in tiles
(rather than strips).
-.TP
+.TP
.B \-w
Specify the width of a tile (in pixels).
.I tiffcrop
@@ -347,65 +404,124 @@ that no more than 8 kilobytes of data appear in a tile.
attempts to set the tile dimensions so
that no more than 8 kilobytes of data appear in a tile.
.TP
-.B \-,={character}
-substitute {character} for ',' in parsing image directory indices
-in files. This is necessary if filenames contain commas.
-Note that ',=' with whitespace immediately following will disable
-the special meaning of the ',' entirely. See examples.
-.SH EXAMPLES
+Debug and dump facility
+.B \-D opt1:value1,opt2:value2,opt3:value3:opt4:value4
+Display program progress and/or dump raw data to non\-TIFF files.
+Options include the following and must be joined as a comma
+separate 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.
+.IP
+debug:N Display limited program progress indicators where larger N
+increase the level of detail.
+.IP
+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.
+.IP
+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.
+.IP
+input:full\-path\-to\-directory/input\-dumpname
+.IP
+output:full\-path\-to\-directory/output\-dumpname
+.IP
+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.
+
+The four debug/dump options are independent, though it makes little sense to
+specify a dump file without specifying a detail level.
+
+.SH "EXAMPLES"
The following concatenates two files and writes the result using
.SM LZW
encoding:
.RS
-.nf
-tiffcrop -c lzw a.tif b.tif result.tif
-.fi
+.nf
+tiffcrop \-c lzw a.tif b.tif result.tif
+.fi
.RE
-.PP
-To convert a G3 1d-encoded
+.PP
+To convert a G3 1d\-encoded
.SM TIFF
-to a single strip of G4-encoded data the following might be used:
+to a single strip of G4\-encoded data the following might be used:
.RS
-.nf
-tiffcrop -c g4 -r 10000 g3.tif g4.tif
-.fi
+.nf
+tiffcrop \-c g4 \-r 10000 g3.tif g4.tif
+.fi
.RE
(1000 is just a number that is larger than the number of rows in
the source file.)
-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
+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":
.RS
-.nf
-tiffcrop -N 1,3 album.tif result.tif
-.fi
+.nf
+tiffcrop \-N 1,3 album.tif result.tif
+.fi
.RE
-.PP
+.PP
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, nad 0.75 inch on the
+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.
.RS
-.nf
-tiffcrop -U in -m 0.5,0.25,0.75,0.25 -E left -Z 2:4,3:4 -I MicrofilmNegative.tif MicrofilmPostiveCenter.tif
-.fi
+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
+.fi
.RE
-.PP
+.PP
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:
.RS
-.nf
-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
-.fi
+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
+.fi
.RE
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.
-.PP
+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.
+.fi
+.RE
+.PP
+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.
+.RS
+tiffcrop \-U px \-z 1,1,2048,2048:1,2049,2048,4097 \-e separate CheckScans.tiff Check
+.fi
+.RE
+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.
+
+.SH "NOTES"
+.PP
+In general, bilevel, grayscale, palette and RGB(A) data with bit depths
+from one to 32 bits should work in both interleaved and separate plane
+formats. Floating point data types are supported at bit depts of 16, 24, 32 and 64
+bits per sample. Tiffcrop is derived from code in
+.I tiffcp
+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.
+.PP
+.I Tiffcrop
+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 addition to the
+memory required by the input and output buffers associated with
+.I LIBTIFF
+one or more buffers at least as large as the largest image to be read will be
+required. The design favors large volume document processing uses over scientific or
+graphical manipulation of large datasets as might be found in research scenarios.
.SH "SEE ALSO"
.BR pal2rgb (1),
.BR tiffinfo (1),
@@ -414,7 +530,7 @@ the portrait or landscape option.
.BR tiffmedian (1),
.BR tiffsplit (1),
.BR libtiff (3TIFF)
-.PP
+.PP
Libtiff library home page:
.BR http://www.remotesensing.org/libtiff/
diff --git a/tools/tiffcrop.c b/tools/tiffcrop.c
index ded83c77..af58fb96 100644
--- a/tools/tiffcrop.c
+++ b/tools/tiffcrop.c
@@ -1,9 +1,9 @@
-/* $Id: tiffcrop.c,v 1.3.2.2 2007-04-18 08:42:26 dron Exp $ */
+/* $Id: tiffcrop.c,v 1.3.2.3 2008-12-31 17:32:52 fwarmerdam Exp $ */
-/* tiffcrop.c -- a port of tiffcp.c extended to include cropping of selections
+/* tiffcrop.c -- a port of tiffcp.c extended to include manipulations of
+ * the image data through additional options listed below
*
* Original code:
- *
* Copyright (c) 1988-1997 Sam Leffler
* Copyright (c) 1991-1997 Silicon Graphics, Inc.
*
@@ -26,45 +26,89 @@
* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*
- * Richard Nolde Updated 2/2007 Add support for the options below to extract
- * sections of image(s) and to modify the whole image or selected portion
- * with rotations, mirroring, and colorscale/colormap inversion of selected
- * types of TIFF images when appropriate
+ * The portions of the current code that are derived from tiffcp are primarly
+ * in the areas of lowlevel reading and writing of scanlines and tiles though
+ * some of the original functions have been extended to support arbitrary bit
+ * depths. These functions are presented at the top of this file.
+ *
+ * Additions (c) Richard Nolde 2006-2009 Last Updated 12/31/2008
+ * IN NO EVENT SHALL RICHARD NOLDE BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
+ * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF
+ * THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Add support for the options below to extract sections of image(s)
+ * and to modify the whole image or selected portions of each image by
+ * rotations, mirroring, and colorscale/colormap inversion of selected
+ * types of TIFF images when appropriate. Some color model dependent
+ * functions are restricted to bilevel or 8 bit per sample data.
+ * See the man page for the full explanations.
*
* Options:
- * -U units [in, cm, px ] inches, centimeters or pixels
- * -H # set horizontal resolution of output images to #
- * -V # set vertical resolution of output images to #
- * -J # set horizontal margin of output page to # expressed in current
- * units
- * -K # set vertical margin of output page to # expressed in current
- * units
- * -X # horizontal dimension of region to extract expressed in current
- * units
- * -Y # vertical dimension of region to extract expressed in current
- * units
- * -O orient orientation for output image, portrait, landscape, auto
- * -P page page size for output image segments, eg letter, legal, tabloid,
- * etc.
- * -S cols:rows divide the image into equal sized segments using cols across
- * and rows down
- * -E t|l|r|b edge to use as origin
- * -m #,#,#,# margins from edges for selection: top, left, bottom, right
- * (commas separated)
- * -Z #:#,#:# zones of the image designated as zone X of Y,
- * eg 1:3 would be first of three equal portions measured
- * from reference edge
- * -N odd|even|#,#-#,#|last sequences and ranges of images within file
- * to process the words odd or even may be used to specify
- * all odd or even numbered images the word last 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
- * -R # rotate image or crop selection by 90,180,or 270 degrees
- * clockwise
- * -F h|v flip (mirror) image or crop selection horizontally
- * or vertically
- * -I invert the colormap, black to white, for bilevel and grayscale
- * images
+ * -h Display the syntax guide.
+ * -v Report the version and last build date for tiffcrop
+ * -z x1,y1,x2,y2:x3,y3,x4,y4:..xN,yN,xN + 1, yN + 1
+ * Specify a series of coordinates to define rectangular
+ * regions by the top left and lower right corners.
+ * -e c|d|i|m|s export mode for images and selections from input images
+ * combined All images and selections are written to a single file (default)
+ * with multiple selections from one image combined into a single image
+ * divided All images and selections are written to a single file
+ *
(Patch may be truncated, please check the link at the top of this post.)