ChangeLog

#
#				ChangeLog
#
#%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
#
#	This file part of:	SExtractor
#
#	Copyright:		(C) 1997-2010 IAP/CNRS/UPMC
#
#	Author:			Emmanuel Bertin (IAP)
#
#	License:		GNU General Public License
#
#	SExtractor is free software: you can redistribute it and/or modify
#	it under the terms of the GNU General Public License as published by
#	the Free Software Foundation, either version 3 of the License, or
# 	(at your option) any later version.
#	SExtractor is distributed in the hope that it will be useful,
#	but WITHOUT ANY WARRANTY; without even the implied warranty of
#	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#	GNU General Public License for more details.
#	You should have received a copy of the GNU General Public License
#	along with SExtractor. If not, see <http://www.gnu.org/licenses/>.
#
#	Last modified:		11/10/2010
#
#%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

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r231 | bertin | 2010-09-29 17:11:15 +0200 (Wed, 29 Sep 2010) | 3 lines

Fixed issue with adaptive CLASS_STAR in dual image mode (thanks to N.Sevilla).
Pushed version number to 2.12.3.

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r230 | bertin | 2010-09-22 17:54:49 +0200 (Wed, 22 Sep 2010) | 2 lines

Allowed SEEING_FWHM to be 0 if no PSF is available and CLASS_STAR is not in the
parameter list.

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r229 | bertin | 2010-09-13 11:05:21 +0200 (Mon, 13 Sep 2010) | 6 lines

Removed singular matrix warnings in LevMar solver calls.
Changed the management of tolerances in Hessian inversion SVD.
Pushed Lanczos interpolator to 4th order in PSF and model-fitting.
Normalized the interpolating function so that the DC component gain is 1.
Pushed version number 2.12.2.

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r228 | bertin | 2010-08-26 16:30:26 +0200 (Thu, 26 Aug 2010) | 5 lines

Fixed model-fitting issue with empty images in dual-image mode (thanks to
V. de Lapparent for reporting).
Updated LevMar to version 2.5.
Updated URLs in various places.
Pushed version number to 2.12.1.

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r227 | bertin | 2010-08-23 15:17:00 +0200 (Mon, 23 Aug 2010) | 3 lines

Added --disable-model-fitting configure option to turn-off model-fitting
features and to allow compiling SExtractor without requiring the ATLAS and
FFTW libraries.
Version number pushed to 2.12.0.

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r226 | bertin | 2010-08-20 18:32:32 +0200 (Fri, 20 Aug 2010) | 2 lines

Added  POLAR1ERRMODEL_WORLD,POLAR2ERRMODEL_WORLD,POLARCORRMODEL_WORLD,
ELLIP1ERRMODEL_WORLD,ELLIP2ERRMODEL_WORLD and ELLIPCORRMODEL_WORLD measurement
parameters.

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r225 | bertin | 2010-08-08 19:34:14 +0200 (Sun, 08 Aug 2010) | 9 lines

Fixed detection threshold missing in XML metadata output.
Fixed TFORM error message in fitshead.c (thanks to S.Guieu).
Fixed model-fitting error variance/covariance issue (bug in matrix inversion).
Added ELLIP1ERRMODEL_IMAGE, ELLIP2ERRMODEL_IMAGE, ELLIPCORRMODEL_IMAGE,
POLAR1ERRMODEL_IMAGE, POLAR2ERRMODEL_IMAGE, POLARCORRMODEL_IMAGE (more testing
is needed and WORLD versions are not yet functional).
Narrowed the tolerance constraint for stopping windowed centering iterations.
Fixed incorrect reading of the DATE-OBS FITS keyword when EPOCH and MJD-OBS are missing.
Pushed version number to 2.11.11.

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r224 | bertin | 2010-07-16 11:05:40 +0200 (Fri, 16 Jul 2010) | 5 lines

Fixed WINdowed position error estimates that were underestimated by a factor 2
(thanks to G.Bernstein).
Fixed FLUXERR_WIN triggering issue.
Optimized WIN parameter computations.
Pushed version number to 2.11.8.

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r221 | bertin | 2010-07-09 16:41:51 +0200 (Fri, 09 Jul 2010) | 20 lines

Added VOTABLE "version" attribute to XML output.
Reverted minimization algorithm back to double precision (while keeping single
precision for data and parameters in "bounded" space).
Added specific handling of "Jacobian calls" in model-fitting.
Sped up the resampling process in model-fitting.
Tuned up minimization algorithm in model-fitting.
Added shortcuts to the computation of the local PSF model. 
Fixed triggering issues with some model-fitting parameters (thanks to
S.Serrano).
Removed CLASS_STAR_MODEL and DISK_PATTERN* measurement parameters.
Added automatic tracking of the PSF FWHM from the local PSF model if
SEEING_FWHM is 0 for CLASS_STAR.
Fixed excessive WIN parameter computation time on large ring-shaped objects.
Fixed model-fitting issue with null half-light radii (thanks to S.Desai and
B.Armstrong).
Fixed aperture display value error in FITS-LDAC catalogue header.
Removed redundant update_tab() calls in FITS library.
Fixed comment copy issue for slashes within strings in FITS library (thanks to
F.Schuller).
Added check of PSF values; SExtractor will now exit in error in the case where
all PSF components sum up to 0.
Replaced computation of model second moments and ellipticities with analytical
estimates.
Improved the accuracy of peak and average model surface brightness estimates.
Fixed some compiler warnings.
Pushed version number to 2.11.7.

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r220 | bertin | 2010-02-05 14:17:20 +0100 (Fri, 05 Feb 2010) | 5 lines

Added reading of .head ASCII headers (suggestion from M.Monnerville and
P.Hudelot).
Improved real-time display.
Fixed various issues with XSLT in double image mode.
Pushed version number to 2.11.0.

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r219 | bertin | 2010-01-21 14:38:14 +0100 (Thu, 21 Jan 2010) | 3 lines

Added the DETECT_MAXAREA (advanced) configuration keyword (as suggested by
V.Terron).
Improved processing time display.

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r218 | bertin | 2009-12-16 01:02:21 +0100 (Wed, 16 Dec 2009) | 9 lines

Fixed world coordinates in PSF-fitting.
Fixed error ellipse measurements in PSF-fitting (but works only for PSF_NMAX=1
currently).
Simplified PSF parameter handling (removed PSFDISPLAY_TYPE configuration
option).
Simplified triggering of local north axis computation.
Allowed model axis ratios to exceed 1 to facilitate convergence.
Fixed alignment bug for symmetric models.
Restricted maximum allowed range for model coordinates.
Pushed version number to 2.10.0.

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r217 | bertin | 2009-12-01 14:46:19 +0100 (Tue, 01 Dec 2009) | 3 lines

Set XMODEL_IMAGE and YMODEL_IMAGE data types back to double precision (thanks
to S.Desai).
Fixed various compilation warnings.

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r216 | bertin | 2009-11-18 17:45:26 +0100 (Wed, 18 Nov 2009) | 4 lines

Fixed issue with FFTW configure for custom library paths.
Fixed compilation warnings in pattern.c and lm.h.
Pushed version number to 2.9.9.

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r215 | bertin | 2009-11-02 17:25:36 +0100 (Mon, 02 Nov 2009) | 3 lines

Fixed typos introduced in the 2.4 LevMar custom update.
Added support for 64 bit binary table elements in FITS library (thanks to J.P.
McFarland).

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r214 | bertin | 2009-10-22 21:36:54 +0200 (Thu, 22 Oct 2009) | 4 lines

Fixed issue with SVD on some objects.
Updated the LevMar library to V2.4.
Pushed version number to 2.9.7.

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r213 | bertin | 2009-10-19 17:10:20 +0200 (Mon, 19 Oct 2009) | 4 lines

Fixed MODELS check-image.
Fixed X/YMODEL_WORLD issue.
Increased CLEANing margin for model-fitting.

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r212 | bertin | 2009-10-09 18:21:18 +0200 (Fri, 09 Oct 2009) | 5 lines

Improved the quality of model resampling for subsampled objects.
Implemented a more consistent model size and flux scaling scheme for subsampled
objects.
Fixed Sersic model generation bug.
Pushed version number to 2.9.6.

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r211 | bertin | 2009-10-08 23:34:46 +0200 (Thu, 08 Oct 2009) | 6 lines

Added automatic image rebinning for fitting very large objects (>512 pixels).
Fixed several issues related to image and weight copy prior to fitting.
Fixed bug with symmetric models.
Fixed issue with new FFT planning scheme.
Pushed version number to 2.9.5.

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r210 | bertin | 2009-10-01 17:54:49 +0200 (Thu, 01 Oct 2009) | 4 lines

Added new NLOWWEIGHT_ISO and NLOWDWEIGHT_ISO parameters that count the number
of bad pixels within the measured isophotal footprint, and within one pixel of
the detected isophotal footprint, respectively.
FLAGS_WEIGHT is now working without crashing.
Pushed version number to 2.9.3.

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r209 | bertin | 2009-09-29 18:54:34 +0200 (Tue, 29 Sep 2009) | 6 lines

Fixed BITPIX display info.
Changed CONCENTRATION_MODEL to SPREAD_MODEL.
Added SPREADERR_MODEL measurement (currently a crude estimate).
Optimized FFT calls.
Set PSF_NMAX to 2 by default.

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r208 | bertin | 2009-09-24 14:38:44 +0200 (Thu, 24 Sep 2009) | 5 lines

Fixed CONCENTRATION_MODEL issue.
Removed singular matrix warning.
Added MATRIX_MODELERR measurement parameters.
Added DURATION_ANALYSIS measurement parameter.

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r207 | bertin | 2009-09-21 14:27:28 +0200 (Mon, 21 Sep 2009) | 6 lines

Added FLUX_MAX_MODEL, FLUX_EFF_MODEL, FLUX_MEAN_MODEL, MU_MAX_MODEL,
MU_EFF_MODEL and MU_MEAN_MODEL parameters (FLUX_MAX_MODEL estimator still
somewhat inacurrate).
Added FLUX_MAX_SPHEROID, FLUX_EFF_SPHEROID, FLUX_MEAN_SPHEROID, MU_MAX_SPHEROID,
MU_EFF_SPHEROID, MU_MEAN_SPHEROID parameters.
Added FLUX_MAX_DISK, FLUX_EFF_DISK, FLUX_MEAN_DISK, MU_MAX_DISK, MU_EFF_DISK
and MU_MEAN_DISK parameters.
Changed the way total model fluxes and model moments are computed.
Pushed version number to 2.9.2.

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r206 | bertin | 2009-09-14 00:24:01 +0200 (Mon, 14 Sep 2009) | 10 lines

Changed ExMODEL parameters to ELLIPx_MODEL.
Changed EPSxMODEL parameters to POLARx_MODEL.
Added AMODEL, BMODEL, THETAMODEL for both _IMAGE and _WORLD coordinates.
Added CXXMODEL CYYMODEL, CXYMODEL for both _IMAGE and _WORLD coordinates.
AddedTHETAMODEL_SKY,THETAMODEL_J2000,THETAMODEL_B1950.
Added ELLIPxMODEL_WORLD and POLARxMODEL_WORLD.
Fixed broken PSF-fitting.
Fixed warnings while generating the configure (thanks to S.Pascual).
Pushed version number to 2.9.1.

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r205 | bertin | 2009-09-10 19:28:28 +0200 (Thu, 10 Sep 2009) | 2 lines

Put back missing item in configure file.

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r204 | bertin | 2009-09-09 17:49:41 +0200 (Wed, 09 Sep 2009) | 2 lines

Cleaned up configure file.

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r203 | bertin | 2009-09-09 11:47:17 +0200 (Wed, 09 Sep 2009) | 2 lines

Added new rpm-best option in Makefile.am.

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r202 | bertin | 2009-09-08 22:11:04 +0200 (Tue, 08 Sep 2009) | 3 lines

Changed the --enable-automatic-flags configure option to --enable-auto-flags.
Added --enable-best-link configure option.

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r201 | bertin | 2009-09-08 18:58:59 +0200 (Tue, 08 Sep 2009) | 4 lines

Switched to single precision for model fitting.
Changed configure behaviour towards CFLAGS and LDFLAGS: automatic settings are
now applied only if the --enable-automatic-flags configure option is set
(thanks to S.Pascual).
Version number pushed to 2.9.0.

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r200 | bertin | 2009-08-27 23:25:14 +0200 (Thu, 27 Aug 2009) | 5 lines

Removed redundant code in astrom_pos().
Fixed random crashes with model fitting (thanks to S.Desai).
Fixed gain problem in PSF fitting.
Pushed version number to 2.8.9.

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r199 | bertin | 2009-07-20 21:41:29 +0200 (Mon, 20 Jul 2009) | 3 lines

Added FOCAL coordinates for centering parameters.
Re-organized astrometric calls.

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r198 | bertin | 2009-06-26 17:41:48 +0200 (Fri, 26 Jun 2009) | 2 lines

Fixed incorrect FFTW type in multithread check.

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r197 | bertin | 2009-06-26 17:13:08 +0200 (Fri, 26 Jun 2009) | 6 lines

Made parallel version of ATLAS not mandatory for the multithread option (unused).
Replaced configuration error with warning if FFTW is not multithreaded and
multithreading has been activated (unused).
Added autoconfig support for FFTW multithreaded versions combined in libfftw3
(unused).
Added runtime warning if ATLAS is not multithreaded and multithreading is on
(unused).
Version number pushed to 2.8.8.

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r196 | bertin | 2009-05-29 21:17:33 +0200 (Fri, 29 May 2009) | 2 lines

Further refinements on display.

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r195 | bertin | 2009-05-29 18:35:54 +0200 (Fri, 29 May 2009) | 2 lines

Improved online display.

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r194 | bertin | 2009-05-29 18:21:25 +0200 (Fri, 29 May 2009) | 6 lines

Removed multithreading in FFTs (would degrade performance).
Added computation of FLUXERR_MODEL and MAGERR_MODEL.
Fixed a numerical bug in E1MODEL_IMAGE and E2MODEL_IMAGE.
Improved onscreen display.
Pushed version number to 2.8.7

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r193 | bertin | 2009-05-22 14:26:11 +0200 (Fri, 22 May 2009) | 2 lines

Included Chiara's MissFITS fix in fitspick().

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r192 | bertin | 2009-05-22 14:14:26 +0200 (Fri, 22 May 2009) | 3 lines

Added filtering of non-numerical characters for floating-point FITS keywords
(thanks to D.G. Bonfield for the suggestion).

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r191 | bertin | 2009-05-19 17:40:54 +0200 (Tue, 19 May 2009) | 2 lines

Increased field format size from %15.10e to %18.10e and from %5.1f to %6.2f.

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r190 | bertin | 2009-05-07 11:18:57 +0200 (Thu, 07 May 2009) | 2 lines

Removed forgotten debug printout.

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r189 | bertin | 2009-04-28 19:40:43 +0200 (Tue, 28 Apr 2009) | 2 lines

Fixed bug in make_kernel() test bug (thanks to R.Owen).

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r187 | bertin | 2009-04-09 15:31:57 +0200 (Thu, 09 Apr 2009) | 2 lines

Forgot to regenerate configure file.

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r186 | bertin | 2009-04-09 15:29:59 +0200 (Thu, 09 Apr 2009) | 3 lines

Removed obsolete measurement parameters.
Pushed version number to 2.8.6

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r185 | bertin | 2009-04-01 18:53:14 +0200 (Wed, 01 Apr 2009) | 2 lines

More junk cleaning.

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r184 | bertin | 2009-04-01 18:17:33 +0200 (Wed, 01 Apr 2009) | 4 lines

Fixed icc 11 compilations options on x86-64 architecture.
Cleaned up obsolete references.
Added favicon to XSLT filter.

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r183 | bertin | 2009-04-01 15:53:17 +0200 (Wed, 01 Apr 2009) | 2 lines

Added another refinement to the XSLT filter.

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r182 | bertin | 2009-04-01 13:11:33 +0200 (Wed, 01 Apr 2009) | 2 lines

Updated XSLT filter (AstrOmatic theme).

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r181 | bertin | 2009-03-23 19:21:58 +0100 (Mon, 23 Mar 2009) | 8 lines

Removed unstable and buggy measurements from parameter list.
Cleaned up Makefile.am RPM options.
Fixed rpm build issue on Fedora Core 10.
Fixed display of max thread number in configure help.
Updated icc compilation flags to 11.0 syntax.
Set the license string to CeCILL in the .spec file.
Pushed version number to 2.8.5.

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r180 | bertin | 2009-03-20 14:11:44 +0100 (Fri, 20 Mar 2009) | 3 lines

Put back model chi2 normalisation.
Made handling of dynamic compression and chi2 computations more flexible.

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r179 | bertin | 2009-03-18 15:43:36 +0100 (Wed, 18 Mar 2009) | 3 lines

Added CONCENTRATION_MODEL and finalized CLASS_ST parameters.
Version number pushed to 2.8.4.

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r178 | bertin | 2009-03-10 14:05:07 +0100 (Tue, 10 Mar 2009) | 1 line

Set mime-type property of SExtractor doc to application/pdf
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r177 | bertin | 2009-02-20 19:06:45 +0100 (Fri, 20 Feb 2009) | 4 lines

Fixed bug which would cause the mapping to depend on the ordering of PVs.
Changed software license to CeCILL (French equivalent of GPL).
Pushed version number to 2.8.3.

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r176 | bertin | 2009-01-29 19:34:29 +0100 (Thu, 29 Jan 2009) | 1 line

Fixed crash with model fitting on small objects
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r175 | bertin | 2009-01-28 22:52:45 +0100 (Wed, 28 Jan 2009) | 1 line

Nothing
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r173 | bertin | 2009-01-28 18:37:46 +0100 (Wed, 28 Jan 2009) | 1 line

merged with SExFIGI branch
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r39 | bertin | 2009-01-28 17:05:55 +0100 (Wed, 28 Jan 2009) | 1 line

Moved software to trunk
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r22 | bertin | 2006-10-29 21:04:25 +0100 (Sun, 29 Oct 2006) | 5 lines

Updated FITS library to the latest version.
Fixed some UCDs in output parameters.
Applied patch by Sergio Pascual for configuring the path to the XSL file.
Updated the BUGS section.

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r21 | bertin | 2006-08-16 18:06:49 +0200 (Wed, 16 Aug 2006) | 2 lines

Discard NaN pixels in non-weighted background measurements (as in SWarp).

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r20 | baillard | 2006-07-18 13:54:43 +0200 (Tue, 18 Jul 2006) | 2 lines

Move sextractor to public repository

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r19 | bertin | 2006-07-17 19:56:12 +0200 (Mon, 17 Jul 2006) | 4 lines

Doc: keyword list updated.
ChangeLog updated.
Back-propagated destructive byte-swapping bugfix in FITS library.

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r18 | bertin | 2006-07-14 20:25:09 +0200 (Fri, 14 Jul 2006) | 3 lines

Removed warnings in psf.c (P.Delorme's edits) using brute-force.
Switched ChangeLog to SVN format.

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r17 | bertin | 2006-07-14 20:13:39 +0200 (Fri, 14 Jul 2006) | 8 lines

Yet another rewriting of the XML part. Meta-data, error messages and catalog
info are now consistant between the catalog and the XML metadata file. Still
some pb with the COOSYS epoch and system in the VOTable version of the catalog
(but correct in the XML metadata file).
CATALOG_TYPE ASCII_VO changed to ASCII_VOTABLE.
Added a check in error catching to prevent recursive loops.
Added reinit of the warning counter to allow multiple uses of the warning
history.
Cleaned up configure.ac and added a default path for the (still missing) XSL
file.
Updated config/default.sex, BUGS HISTORY and README files.
Ready for release of V2.5.

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r16 | bertin | 2006-07-13 22:06:48 +0200 (Thu, 13 Jul 2006) | 5 lines

XML VOTable approach changed again: support for error messaging in VO catalog
(not only metadata) and FITS serialization of LDAC files in XML output.
COOSYS tag added with relevant information.
Removed MAMA_CORFLEX advanced config parameter (replaced with define).
Version number pushed to 2.5.

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r15 | bertin | 2006-07-12 20:34:06 +0200 (Wed, 12 Jul 2006) | 4 lines

Improved XML VOTable (still waiting for F.Ochsenbein comments, though).
Added meta-data to VOTable catalog output.
Fixed potential bug with long command lines.

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r14 | bertin | 2006-07-11 23:04:18 +0200 (Tue, 11 Jul 2006) | 2 lines

Completed the conversion of XML output to the VOTable format.

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r13 | bertin | 2006-07-10 21:49:59 +0200 (Mon, 10 Jul 2006) | 6 lines

Added support for ICRS in header WCS.
Changed the way header WCS info is interpreted when EQUINOX is missing.
Added dump of command line in XML meta-data.
Pushed max number of recorded warnings to 100.
Changed XML meta-data output format to VOTable (not complete yet).

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r12 | bertin | 2006-07-09 19:57:00 +0200 (Sun, 09 Jul 2006) | 4 lines

Added support for warning history in the fits library.
Added duration to XML error output.
Added ten most recent warnings to XML output.

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r11 | bertin | 2006-07-07 20:30:30 +0200 (Fri, 07 Jul 2006) | 4 lines

Added catching of error messages and forwarding to XML.
Added ASCII_VO output catalog format (inspired by G.Tissier's VOTable patch)
Fixed issue with conflicting CDi_j/CDELTi parameters (report by J.F. Bonnarel).

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r10 | bertin | 2006-07-05 20:11:29 +0200 (Wed, 05 Jul 2006) | 2 lines

Added more configuration parameters to XML output.

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r9 | bertin | 2006-07-04 17:39:58 +0200 (Tue, 04 Jul 2006) | 3 lines

Fixed a bug with the reentrant version of strtok in TNX.
Added more XML info.

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r8 | bertin | 2006-07-03 21:31:15 +0200 (Mon, 03 Jul 2006) | 5 lines

Updated display to the leatest "Bertin standards".
Added comments to uncommonly used config parameters in default .sex.
Changed default output channel for info about extraction to stdout.
Added XML output.

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r7 | bertin | 2006-07-02 21:15:05 +0200 (Sun, 02 Jul 2006) | 5 lines

Updated WCS lib to the latest SCAMP version.
Added support for TNX distortions.
Added support for WCS with more than 2D (NAXIS=3 right now).
Added -g compilation flag for gcc.

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r6 | bertin | 2006-06-29 22:38:02 +0200 (Thu, 29 Jun 2006) | 7 lines

Self Organizing Map code revived!
The FITS body writing routine now complies with strict aliasing constraints,
but: Strict-aliasing optimization option dropped in acx_prog_cc_optim.m4
because of too many problems with gcc 4.1 (missing X_IMAGE output, etc.): too
much "fun" with pointers in the SExtractor code.
Local background estimates work again after many years of oblivion, thanks to
an increased top margin in the buffering mechanism (bug found by P.Astier).
Overwriting of displayed infos fixed.

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r5 | bertin | 2006-01-12 20:12:04 +0100 (Thu, 12 Jan 2006) | 2 lines

Preliminary merging with P.Delorme branch (improved PSF-fitting). 

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r4 | bertin | 2005-11-30 07:29:34 +0100 (Wed, 30 Nov 2005) | 3 lines

Added preliminary support for FLAGS_WEIGHT. Null weights above detections are
still missed.

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r3 | bertin | 2005-10-19 20:12:37 +0200 (Wed, 19 Oct 2005) | 1 line


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r2 | bertin | 2005-10-17 16:57:55 +0200 (Mon, 17 Oct 2005) | 1 line

first SExtractor import

-------------------------------- old ChangeLog --------------------------------
Who     When            Where(mostly)   What

EB      03/07/97        clean.c         Make removal of LSB sources optional.
                        scanimage()     Idem.
                        clean.h
                        types.h         Move prototypes from types.h to clean.h

EB      23/07/97        -               Blanking of detections. Major update.
                                        outobj2 components are now handled
                                        through the obj2 pointer.

EB      31/07/97        photom.c        MAGERR_APER bug introduced during the
                                        add of blanking fixed.

EB      01/08/97        LDACTools       Upgraded from the EIS version.

EB      04/08/97        -               Added handling of external FLAG-maps.
                        read_prefs()    Upgraded from the WeightWatcher code.
                        newfield()      Changed slightly the frame description
                                        display.
EB      13/08/97        filterback()    Fixed bug with even BACK_FILTERSIZE
                        localback()     Fixed bug with LOCAL backgrounds for
                                        BLANKed detections.

EB      27/08/97        -               Added handling of external WEIGHT-maps.

EB      02/09/97        makeback()      Added display of currently processed
                                        line.
                        sexheadsc.h
                        catout.c        New ASCII_SKYCAT catalog format.

EB      05/09/97        -               Fixed -PROTOTYPES check-image bug.

EB      13/09/97        filter.c        Added FILTER_THRESH option.
                        scan.c          Fixed WEIGHT-map detection bug.

EB      10/10/97        examine_iso()
                        clean()         Improve CLEANing and take into account
                                        variable S/N.
                        plist.[c,h]     New memory-friendly propagation of
                                        information through deblending.

EB      16/10/97        main()          New syntax for dual-image mode.

EB      18/10/97        analyse.c
                        photom.c        Exact computation of photometric errors
                                        in the context of variable S/N.

EB      20/10/97        prefs.h         new MAMA_CORFLEX preferences parameter,
                        astrom.c
                        param.h         new X_MAMA and Y_MAMA output parameters

EB      21/10/97        createblank()   Bug in single-image mode fixed.
                        sortit()        Bug in dual-image + BLANKing mode.

EB      24/10/97        astrom.c        X_MAMA and Y_MAMA computed differently
                        addcleanobj()   Bug in the automag flagging fixed by
                                        modifying the margin computations

EB      26/10/97        analyse()       ASSOC selection added.
                        photom.c        MASKing with photometric CORRECTion
                                        added.

EB      04/11/97        readprefs()     Added support for ENV variables within
                                        .sex config file.

EB      06/11/97        photom.c        Bug in FLUXERR_ISOCOR fixed.

EB      13/11/97        end_readobj()
                        end_writeobj()  "Potential bug" fixed.

EB      18/11/97        flag.[c,h]      New module for computing flags from
                                        flag-map.

EB      21/11/97        newfield()      PIXEL_SCALE pb with non-WCS images
                                        fixed.

EB      24/11/97        prefs.h         CROSS_ID keyval changed to MATCHED.
                        initcheck()     WCS rescaling for MINIBACKGROUND and
                                        MINIBACKRMS added.

EB      28/11/97        initcheck()     Bug fixed in WCS coordinates of MINIs.

EB      29/11/97        initcheck()     Another bug added in MINIs fixed.
                        sexhead.h       Corrected SEXTHLD value.

EB      19/12/97        readprefs()     Test length of command-line arguments

EB      21/12/97        endobject()     Replace prefs pixel-scale by field
                                        pixel-scale for S/G separation.

EB      06/01/98        readimagehead() Load basic WCS infos even if no astrom
                                        parameter is requested (for MINIBACKs).
                                        Added handling of CDxx_xx (thanks to
                                        D. Mink)

EB      29/01/98        -               Added crude interpolation scheme in
                                        presence of image weighting: new
                                        interpolate.c module.

EB      30/01/98        preanalyse()
                        examineiso()    Changed the rules concerning the
                                        handling of "infinitely thin"
                                        detections (B_IMAGE=0).

EB      31/01/98        parcelout()     Fixed a big (but intermittent) bug
                                        preventing proper deblending in
                                        weighted images.

EB      07/02/98        photom.c
                        scan.c
                        makeit.c        Revisited completely the handling of
                                        bad pixels for the photometry.

EB      10/02/98        endobject()     (De)blanking strategy slightly changed.

EB	16/02/98        -               New parameters XPEAK_ and YPEAK_ added.

EB      13/03/98        -               Finalization of the handling of weights
                                        (Background RMS, weight threshold).
                        endobject()     SEGMENTATION check-image bug fixed.

EB      16/03/98        readprefs()     Management of the conflicts between
                                        weight-types seriously updated.

EB      20/03/98        photom.c        MAGERR bug in presence of weighting
                                        fixed.

EB      23/03/98        clean()         Wrong handling of abcor factor
                                        corrected.

EB      25/03/98        clean()         realloc() bug in CLEANing with Linux
                        scan.c          fixed.

EB      26/03/98        readimagehead() Typo in OBS-DATE FITS keyword reading.

EB      27/03/98        sortit()        Bug that prevented some faint
                                        detections to be CLEANed fixed.
                        -               Add a new EXTRA_WARNINGS prefs option.

EB      11/04/98        -               Added FITS_UNSIGNED option.
                        filterback()    Bug with empty images fixed.
                        main()          New banner.

EB      15/04/98        getflag()       Potential bug for big objects with
                                        FLAGTYPE MOST fixed.
                        examineiso()    Wrong detection threshold for CLEANing
                                        in multi-image mode replaced with
                                        correct one.
EB      29/04/98        -               Allow multiple FLAG-MAPs (up to 4
                                        currently): IMAFLAG_ISO and
                                        NIMAFLAG_ISO have become vectors.
                        getflags()      Bug with FLAG_TYPEs MIN and MAX fixed.

EB      30/04/98        copyastrom()    Fixed a bug with INTERP_TYPE VAR_ONLY.
                        -               Simplified access init_interpolate.

EB      02/05/98        define.h
                        fitsread()      Improve stability with incorrect FITS
                                        headers.

EB      03/05/98        filterback()    RMS determination more tolerant towards
                                        constant weight-maps.
                                        BACK_FILTERing anisotropy bug fixed.
                        makeit()        Bad closing of CHECKIMAGEs fixed.
                        -               New CATALOG_TYPE NONE option.
                        -               APER measurements functional again
                                        (recently introduced bug).

EB      06/05/98        readimagehead() Pb with FITS astrometric strings fixed.

EB      07/05/98        getconv()       Uninitialized variable pb fixed.

EB      12/05/98        loadstrip()     Bug in the production of BACKGROUND
                                        CHECK-image fixed.

EB      28/05/98        define.h        new VECFLAG() macro for flagging
                                        arrays.
                        prefs.h         Remove "&" before ptrs to static
                                        arrays.

EB      13/06/98        initastrom()    Wrong mapping of PC components fixed.
                        readimagehead() Wrong mapping of CD components fixed.

EB      29/06/98        makeit()        Handling of weight-maps+interpolation
                                        simplified.
                        scanimage()     Missing reference field in the reading
                                        of dwscan added.
                        useprefs()      Bad default threshold in VAR_ONLY
                                        interpolation mode fixed.

EB      30/06/98        backguess()     Missing scaling of "sig" in the
                                        computation of "*mean" added, but
                                        threshold changed from 0.2 to 0.0,
                                        awaiting for more tests.

EB      08/07/98        readimagehead() CDx_x FITS WCS parameters are now
                                        given priority before PCxxxx.

EB      09/07/98        filterback()    Filtering bug at image borders fixed.

EB      21/07/98        photom.c        Division by zero for unphotometrable
                                        objects fixed.

EB      23/07/98        fitswrite()     Pb with very long strings fixed.
                        readcatparams() Reading of .param files more robust.
                                        Comments starting with '#' now allowed.

EB      27/07/98        readimagehead()
                        initcheck()     Changed the handling of CDELTx params
                                        when CDx_x are used. Now works with
                                        MINIBACKGROUND check-images.

EB      11/08/98        photom.c        Purify warning fixed in
                                        computeautoflux()
                        scan.c          Purify warning fixed in scanimage().
                                        BLANKing procedure of CLEANed pixels
                                        fixed. Memory leaks fixed.

EB      18/11/98        -               New BACK_TYPE, BACK_VALUE, and
                                        THRESH_TYPE config parameters.
                        flag.c          Fixed initialization bug in FLAG_TYPE
                                        MAX mode (thanks to T.Erben).

EB      20/11/98        back.c          New BACK_FILTTHRESH parameter.

EB      23/11/98        prefs.c
                        weight.c        Quick fix of MAP_RMS measurement mode.

EB      26/11/98        -               New key->alloc flag to distinguish
                                        between constant and dynamic pointers.

EB      28/11/98        -               lint warnings fixed.

EB      29/11/98        assoc.c         New ASSOC_TYPE NEAREST option.

EB      28/12/98        catout.c        Added dependency between flux_auto and
                                        flux_radius

EB      13/01/99        endobject()     Fixed numbering problem in SEGMENTATION
                                        maps when CLEAN is N.

EB      27/01/99        load_assoc()    Stupid bug in 2 ASSOC_PARAMS mode
                                        fixed.

EB      19/02/99        examineiso()    Variable thresholding is now taken into
                                        account for S/G classification and
                                        FWHMs.

EB      25/02/99        types.h         Wrong data-type for BACK_VALUE fixed.

EB      02/03/99        examineiso()    XPEAK and YPEAK offset bug fixed.

EB      06/04/99        -               Unused variables removed.
                        clean.c
                        scan.c          New handling of CLEANed blanked
					detections.

EB      08/04/99        -               Various memory leaks fixed
                        readimage()     BACKGROUND_RMS check-images now
                                        operational in single-image mode.

EB      15/04/99        param.h         Remove the 0's from the formatting
                                        of flags.

EB      21/04/99        -               New _PROFILE photometric parameters.

EB      06/05/99        examineiso()    Potential bug in the threshs[i] fixed.
                        readimage()     Bug in BACKGROUND_RMS mode fixed.

EB      11/05/99        -               Major change: handling of weight-maps
                                        during the background processing.
                                        New WEIGHT_GAIN parameter.

EB      19/05/99        scanimage()     Important "bug" fix: slight differences
                                        between single- and double-image modes
                                        supressed.

EB      24/05/99        makeback()      Memory leak in double-weight/single-
                                        image mode fixed.
                        makeit()        New info display.
                        inheritfield()  Interpolation flag is no longer
                                        inherited (fixes a bug in some weird
                                        double-weight-maps configs).

EB      12/08/99        endfield()      Fixed segmentation fault at the end
                                        of processing when ASSOC is used.
                        psf_load()      Remove malloc() of null-size data
                                        with constant PSFs.

EB      10/09/99        makeit()        Background pb in WEIGHT_TYPE NONE,...
                                        fixed.

EB      14/09/99        back()          Replacement value for bad variance map
                                        background meshes changed to 1.0
                        scanimage()     Bug with THRESH_TYPE ABSOLUTE in
                                        WEIGHTing mode fixed.

EB      30/09/99        fitsread()      The quote (') symbol is now properly
                                        handled in FITS headers.

EB      07/10/99        scanimage()     Removed debug information inadvertently
                                        left in the previous release.

EB      24/01/2000      computeautoflux()
                                        Small inaccuracy in crowding-flag
                                        positioning fixed.

EB      01/02/2000      localback()     Fixed division by zero in local
                                        background estimates of some heavily
                                        deblended detections in MASK_TYPE
                                        CORRECT mode.
EB      03/02/2000      makeback()      Risk of segmentation fault with huge
                                        weight maps fixed.

EB      11/02/2000      computeautoflux()
                                        Wrong version of photom.c in release
                                        V2.1.5 fixed.

EB      14/10/2000      newfield()      RMS_FIELD now properly taken into
                                        account.
                        prefs.h         BACK_FILTERSIZE upper limit pushed to
                                        11.

EB      04/02/2001      backhisto()
                        backstat()      Fixed two huge bugs in the MAP_WEIGHT
                                        calibration.

EB      08/02/2001      makeback()      Fixed a small bug in large-image mode.
                        clean()         Fixed CLEANing bug for hollow objects.

EB      23/09/2001      neurfilter()    Fixed a bug that would make the result
                                        of neural filtering compiler-dependent.
                        makeback()      Corrected typos in text displayed on
                                        screen.

EB      24/09/2001      endobject()     Add 1 to xmin,xmax,ymin and ymax object
                                        parameters to be compatible with the
                                        FITS convention for pixel coordinates.

EB      17/06/2002      -               Added Large File Support

EB      13/12/2002      -               Moved to autoconf'ed distribution.
                        -               FITS and WCS library updated.
                        main()          New banner.
EB      15/12/2002      -               Added Support for MEF files.

EB      24/01/2003      initastrom()
                        astrom.h        Increased PV array to 2000 to comply
                                        with the newly added version of the WCS
                                        library.
                        preflist.h      Increased default MEMORY_PIXSTACK to
                                        200,000.
                        acx_prog_cc_optim.m4
                                        Added "-g" to default CFLAGS when
                                        compiling with gcc.
EB      05/02/2003      readimage.c     Added <math.h> include statement.

EB      06/02/2003      backguess()     Fixed potential bug with unitialized
                                        value.

EB      07/02/2003      back.c
                        fitscat.h
                        define.h
                        configure.in    Improved LFS support (with glibc2.2).

EB      05/03/2003      -               Put back config/ dir and add Benne
                                        Holwerda's manual.

EB      02/04/2003      makeback()      Fixed a memory leak on weight histo.
                        refine.c        Modify parcelout() array allocation.
                        pc.c
                        psf.c
                        som.c           Added dummy return to please insure++.

EB      03/04/2003      endastrom()     2 arrays were freed twice sometimes.

EB      28/11/2003      -               Fixed gcc -Wall warnings
                        -               Updated the fitscat and wcs libraries
                                        to the latest versions.

EB      03/12/2003      add_tab()       Removed confusing seg section, fixing
                                        the SEXNDET header bug with MEFs.
                        save_head()     Add saving of headpos file position.

EB      15/06/2004      analyse.c
                        check.c
                        clean.c         Mv SEGMENTATION map from 16 to 32 bits.

EB      13/12/2004      computepetroflux()
                                        Added Petrosian "total" magnitudes
                        winpos.c        Added *WIN_* position measurements.

EB      14/12/2004      key.h           Keyword max length changed to 31 chars

EB      15/12/2004      -               New RPM build system
                        -               Updated the fits and wcs libraries
                                        to the latest versions.

EB      15/02/2005      compute_winpos()