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Changes in TIFF v3.6.1

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<font size="+3">T</font>IFF <font size="+2">C</font>HANGE <font size="+2">I</font>NFORMATION

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Current Version: v3.6.1

Previous Version: v3.6.0

Master FTP Site: 

ftp.remotesensing.org, directory pub/libtiff

Master HTTP Site: 

http://www.remotesensing.org/libtiff 

This document describes the changes made to the software between the

previous and current versions (see above).

If you don't find something listed here, then it was not done in this

timeframe, or it was not considered important enough to be mentioned.

The following information is located here:

Major Changes

Changes in the software configuration

Changes in libtiff

Changes in the tools

Changes in the contrib area

Changes in the LZW compression kit

<font size="+3">M</font>AJOR CHANGES:

	
 New utility tiff2pdf

	for converting TIFF images directly into PDF.

	
 New color conversion module.

	
 Full support for Orientation tag in

	TIFFRGBAImage interface.

	
 Many bugs fixed.

<font size="+3">C</font>HANGES IN THE SOFTWARE CONFIGURATION:

 libtiff/makefile.vc, tools/makefile.vc: Support for IJG JPEG library.

 Makefile.in: Add an absolute path to the test_pics.sh call.

 Makefile.in: Add an absolute path to the test_pics.sh call.

 libtiff/tiffcomp.h: #define _BSDTYPES_DEFINED when defining BSD typedefs.

 configure, libtiff/{Makefile.in, mkversion.c}: Relative buildings fixed.

 Makefile.in: Add an absolute path to the test_pics.sh call.

<font size="+3">C</font>HANGES IN LIBTIFF:

 libtiff/{tif_color.c, tif_getimage.c, tiffio.h}: Added support

for ReferenceBlackWhite tag handling when converted from YCbCr color space as

per bug 120.

 libtiff/{tif_getimage.c, tif_aux.c}: Read WhitePoint tag from the

file and properly use it for CIE Lab 1976 to RGB transform.

 libtiff/{tif_getimage.c, tiffio.h}: Finally resolved problems with

orientation handling. TIFFRGBAImage interface now properly supports all

possible orientations, i.e. images will be flipped both in horizontal and

vertical directions if required. 'Known bugs' section now removed from the

appropriate manual pages.

 libtiff/tif_luv.c: Fixed bug in 48-bit to 24-bit conversion routine,

reported by Antonio Scuri.

 libtiff/{tiffio.h, tif_codec.c}: Added new function

TIFFIsCODECConfigured(), suggested by Ross Finlayson.

 libtiff/tif_ojpeg.c: TIFFVGetField() function now can properly extract

the fields from the OJPEG files. Patch supplied by Ross	Finlayson.

 libtiff/tif_dir.h: _TIFFFindOrRegisterdInfo declaration replaced

with _TIFFFindOrRegisterFieldInfo as reported by Ross Finlayson.

 libtiff/tif_dirinfo.c: Implemented binary search in _TIFFMergeFieldInfo().

Patch supplied by Ross Finlayson.

 tif_dirread.c: do not mark all anonymously defined tags to be IGNOREd (as

it was done in 3.6.0).

 libtiff/{tiff.h, tif_dirinfo.c}: Added support for IFD (13) datatype,

intruduced in "Adobe PageMaker TIFF Technical Notes".

 libtiff/{tif_color.c, tif_getimage.c, tiffio.h}: New color space

conversion code: CIE L*a*b* 1976 images now supported by the TIFFRGBAImage

interface. YCbCr to RGB conversion code also moved there and now has

publicly available interface. These

routines currently used in TIFFRGBAImage interface only and not supported in

other libtiff tools yet. So if you want, for example, to convert CIE Lab image

into PostScript file you should do it in two steps: chnge colorspace to RGB

using tiff2rgba utility abd then process

it with the tiff2ps.

 libtiff/tif_tile.c: Remove spurious use of "s" (sample) in the

planarconfig_contig case in TIFFComputeTile() as per bug 387

 libtiff/tiffiop.h: New macros: TIFFmax and TIFFmin.

 libtiff/{tiffio.h, tif_strip.c}: Added TIFFRawStripSize() function

as suggested by Chris Hanson.

 libtiff/{tif_lzw.c, tif_fax3.c}: Proper support for update mode

as per bug 424.

<font size="+3">C</font>HANGES IN THE TOOLS:

 tiff2pdf: New tool, written by

Ross Finlayson, to directly convert TIFF files to PDF.

 tiffgt: Unmaintained and platform

dependent sgigt utility removed and replaced with the completely rewritten

portable tiffgt tool (depend on OpenGL and

GLUT). This tool will not build by default.

 ras2tiff: Properly determine

SUN Rasterfiles with the reverse byte order (it is reported by the magic

header field). Problem reported by Andreas Wiesmann.

 raw2tiff: Implemented image size

guessing using correlation coefficient calculation between two neighbour

lines.

<font size="+3">C</font>HANGES IN THE CONTRIB AREA:

 contrib/pds/{tif_pdsdirread.c, tif_pdsdirwrite.c}: Use TIFFDataWidth()

function insted of tiffDataWidth array.

<font size="+3">C</font>HANGES IN THE LZW COMPRESSION

KIT:

 Proper support for update mode as per bug 424.

 TIFF home page.

Last updated $Date: 2003/12/24 22:14:15 $.