ChangeLog for omdetect
=========================
Version 5.0.7 - 2005-08-09 (CB)
--------------------------------
Made a small modification to omdetectdetection_mod.f90 to make
the number of pixels above the background to be a minimum of 2
for those pixels to be checked for a possible source (fixes SPR 3492).
Also made minor modification to grism detection module to fix zeroth
order sources lying close to first order sources being missed.
Removed some test statements to reduce execution time. Updated
documentation. Removed some redundant code.
Version 5.0.6 - 2005-06-10 (CB)
--------------------------------
Additional line of code added to subroutine mergeextendedsources
in omdetect_mod.f90 to fix SPR 3477 (extended sources being
misclassified)..
Version 5.0.5 - 2005-06-09 (CB)
--------------------------------
Reduced image size in test harness and increased parameter nsigma to
prevent test-harness failure due to timing-out (fixes SPR 3475)
Version 5.0.4 - 2005-06-08 (CB)
--------------------------------
Added a call to subroutine aperturephotometry in suboutine
fastdetection to make the fast-mode source-list files
similar to those produced by earlier versions (fixes SPR 3466)
Version 5.0.3 - 2005-05-24 (CB)
--------------------------------
Further small mod to fix SPR 3459.
Version 5.0.2 - 2005-05-24 (CB)
--------------------------------
Added check to prevent an array-bound error when a source is detected close
to edge (fixes SPR 3459).
Version 5.0.1 - 2005-05-23 (CB)
--------------------------------
Ammended Makefile in config directory to fix SPR 3456.
Version 5.0 - 2005-05-20 (CB)
--------------------------------
Incorporates many improvements - better detection of faint-
sources, sources with close neighbours and extended sources.
Better classification of sources and additional flags set.
A background image is produced which can be viewed.
Version 4.19.5 - 2004-03-02 (CB)
--------------------------------
Made a minor modification to subroutine imagedetection to fix
a failure when the parameter detectextended=false (couldn't raise
an SPR because netscape not working here).
Version 4.19.4 - 2004-02-27 (CB)
--------------------------------
A small modification has been made to the grism-detection routine,
so that the actual source-detection routine is run 3 times with
decreasing image threshold values. This reduces the risk of
bright detected spectra being contaminated by scattered light
which prevents omgrism from constructing spectra for them
(fixes SPR 3261).
Version 4.19.3 - 2004-02-19 (CB)
--------------------------------
Ammended omdetectdetection_mod.f90 to carry out another search
for point-sources after main search, using smaller radii to
compute counts, which enables more fainter sources to be detected and
also more sources that are in close proximity to another one
(fixes SPR 3252).
Version 4.19.2 - 2004-01-06 (CB)
--------------------------------
Ammended module omdetectdetection_mod to fix compilation failure
on TRU 64 at MPE (fixes SPR 3192). Ammended parameter constant
in omdetectdetection_mod and added check in omdetect_mod for fast
mode data to check that a source has been detected by point-source
detection algorithm- if not extended-source detection made to find
possible source.
Version 4.19.1 - 2003-12-12 (CB)
--------------------------------
Module matrix_mod deleted to fix build problem
on Darwin 6.8 (fixes SPR 3174)
Version 4.19 - 2003-12-11 (CB)
--------------------------------
Some source-detection parameters adjusted.
Version 4.18 - 2003-12-09 (CB)
--------------------------------
Some paremeters for grism source-detection tweaked.
Version 4.17 - 2003-12-05 (CB)
--------------------------------
Improved detection alogorithim added for grism spectra.
Version 4.16 - 2003-11-21 (CB)
--------------------------------
DEPEND file ammended for ssclib 3.0
Version 4.15 - 2003-11-19 (CB)
--------------------------------
A couple of minor changes for ssclib version 3.0.
Version 4.14 - 2003-11-12 (CB)
--------------------------------
Added check for zero detected sources to prevent array problem.
Version 4.13 - 2003-10-10 (CB)
--------------------------------
Added optional parameter "background" to enable the user
to fix the global background value for source-detection.
Module omdetectdetection moved into mssllib, since it
is now also needed by omgsource.
Version 4.12 - 2003-08-13 (CB)
--------------------------------
Documentation correction for SPR 3088.
Version 4.11 - 2003-07-16 (CB)
--------------------------------
+ (src/omdetection_mod.f90) A parameter adjustment to extended
source detection routine for grism data.
Version 4.10 - 2003-07-14 (CB)
--------------------------------
+ (src/omdetection_mod.f90) A couple of minor modifications made
to reduce executiuon time.
Version 4.9 - 2003-07-11 (CB)
--------------------------------
+ (src/omdetecttest_mod.f90) Parameter adjustment for grism data..
Version 4.8 - 2003-06-17 (VNY)
--------------------------------
+ (test/testomdetecttest) some lines in the testomdetect script are
uncommented to ensure the correct finishing of the test
Version 4.7 - 2003-06-03 (CB)
--------------------------------
+ (src/omdetecttest_mod.f90) Minor mod to fix build problem.
Version 4.6 - 2003-05-07 (CB)
--------------------------------
+ (src/omdetect_mod.f90) Added OmConstants_mod to list
of modules to fix build problem.
Version 4.5 - 2003-05-01 (CB)
--------------------------------
Minor modification made to enable it to be used in the omgrism chain.
Version 4.4 - 2003-04-29 (CB)
--------------------------------
A couple of minor modifications made to rectify problem reported
on xmmsas-20030427-0057.
Version 4.3 - 2003-03-15 (CB)
--------------------------------
Now uses modules in mssllib to perform photometry, smooth image,
create source-list file and compute magnitudes, as will omsource shortly.
Version 4.2 - 2003-14-02 (CB)
--------------------------------
Uploaded into development track.
Version 4.1.11 - 2003-14-02 (CB)
--------------------------------
Corrected 0.5 pixel error in positions & reduced size of centroiding
box to reduce contamination by nearby sources (fixes SPRs 3071 &
3077). Made small improvements to source-detection routine (to fix
SPR 3078). Point-source detection algorithm now searches for
sources in order of decreasing pixel value. Faint sources now less
likely to be missed.
Version 4.1.10 - 2003-01-08 (CB)
--------------------------------
+ (src/omdetect_mod.f90) Modified to obtain ccdframe time
and deadfraction from wdx file if not present in image header,
so that omdetect is backwards compatible with old images.
added optional parameter wdxset to config file to get information.
Version 4.1.9 - 2002-12-20 (CB)
--------------------------------
Remove write statement in omdetectbackground_mod.f90
Version 4.1.8 - 2002-12-18 (CB)
--------------------------------
Documentation correction.
Version 4.1.7 - 2002-12-03 (CB)
--------------------------------
Test harness ammended to fix test failure.
Version 4.1.6 - 2002-12-03 (CB)
--------------------------------
Ammended program to fix SPRs 3039 & 3035.
Version 4.1.5 - 2002-11-01 (CB)
--------------------------------
Ammended program to fix SPRs 3018 & 3019.
Version 4.1.4 - 2002-11-01 (CB)
--------------------------------
Blundered in making minor code modification..
Version 4.1.3 - 2002-11-01 (CB)
--------------------------------
Minor ammendment to code that validates extended source.
Version 4.1.2 - 2002-10-29 (CB)
--------------------------------
Test harness modified to cure failure.
Version 4.1.1 - 2002-10-24 (CB)
--------------------------------
+ (src/omdetectdetection_mod.f90) Modified to deal better with
sources surrounded by strong mod-8 patterns.
Version 4.1 - 2002-10-15 (CB)
--------------------------------
+ (src/omdetectphotometry_mod.f90) modified to do extended
photometry more accurately. New columns in source-list added.
Source detection algorithm improved. Program tidied up.
Version 3.5.7 - 2002-07-11 (CB)
--------------------------------
Code tidied up. Number of connected pixels in a source
limited to maximum of 10000 to prevent program crashing
(fixes SPR 2851)
New source detection routine (in module sourcedetection)
added to detect point sources that the original source
detection code misses in extended source regions. Memory
requirements reduced. Two minor bugs fixed.
Version 3.5.5 2002-03-26 (CB)
--------------------------------
Some write statements removed.
Version 3.5.4 2002-03-14 (CB)
--------------------------------
Documentation corrected.
Version 3.5.3 2002-01-28 (CB)
+ (src/omdetectphotometry_mod.f90) Code for getting the background
mode from a histogram of sky values replaced with a more reliable
method and pixels in the vicinity of sources excluded (fixes SPR
2780). In doing this the magnitudes are more reliable (fixes SPR
2731). Background map found to be okay (SPR 2764).
Version 3.5.2 2002-01-28 (CB)
+ (src/omdetectphotometry_mod.f90) Removed some write statements.
Test harness ammended to prevent occasional failure when in fact
program is working satisfactorily.
Version 3.5.1 2002-01-28 (CB)
+ (src/omdetectphotometry_mod.f90) Modification made to trap a
problem that occurred (SPR 2682) analysing a strange image that
caused the source detection algorithm to go hay-wire, resulting
in a crash- One initially detected source was subsequently
analysed and split into about 80 sources (normally no more than
3), causing an array bound crash. If this problem now occurs
omdetect will add the keyword "SRC_DET" to the source list file
header, mentioning the problem- warning message also output
(Fixes SPR 2682).
Version 3.5 2002-08-02 (CB)
___________
DEPEND file ammended for SSCLIB
Version 3.4 2001-15-12 (CB) Minor improvements to source
detection made - code for smoothing images modified so that a rectangle
instead of a box can be made. Documentation ammended (SPR 2653)
======================
Version 3.3 - 2001-11-22 (JBa)
------------
+ (doc/omdetect_description.tex): fixed documentation
Version 3.2.5 2001-11-02 (VNY)
+ (test/createtest.f90, test/checkoutput.f90) calculation of exp
and division operations are made more robusts
Version 3.2.4 2001-10-30 (CB)
+ (test/checkoutput.f90) Array subscripting error rectified.
Version 3.2.3 2001-10-23 (VNY)
+ (src/omdetect_mod.f90) A protection against negative values
was introduced before calculation of log and lnFactrl
Version 3.2.2 2001-09-20 (CB)
+ (src/omdetectsourceparams_mod.f90) Negative
background-subtracted pixel values reset to zero to prevet
crashing (fixes SPR 2605).
Version 3.2.1 2001-09-20 (CB)
+ (src/omdetectsourceparams_mod.f90) Sources were being rejected
if the source semi-minor axis squared, computed from the moments,
was negative (usually a the source is close to another one). A minor
modification has been made to overcome this (fixes SPR 2602).
Test harness modified to conduct a test for the fast-chain.
Version 3.2 2001-09-20 (VNY)
+ (src/omdetect_mod.f90) A bug in the sourcePars array indexation has been fixed.
Version 3.1 2001-09-17 (VNY)
+ (src/omdetect_mod.f90) Correction of X and Y positions
was introduced for the cases when the source is near
the edge of the field of view (only for the FAST mode).
Version 3.0.5 2001-08-20 (CB)
+ (test/createtest.f90) The dimensions of the quality array
set equal to those of the image (instead of 1, 1 as in
previous versions)- fixes SPR 2539. Some compiler warning messages
eradicated.
Version 3.0.4 2001-08-07 (VNY, CB)
+ (src/omdetect_mod.f90) A code in the COMPUTEMODE routine
which causes underestimation of the background median value
has been removed. The parameter TOLERANCE has been set to 1 pixel
for the IMAGING mode and to the maximum of two sources semi major
axis for the FAST mode chain (within the code eliminating
multiple sources). omMode variable has been introduced to
differentiate FAST and IMAGING modes. In order to improve the
program's detection ability, negative values appearing after
background substraction have been zeroed (in the detection routine)
+ (config/omdetect.par) Default value for contrast parameter set
to 0.001 to improve source detection in regions contaminated by
scattered light (fixes SPR 2515). Bug in background computation
fixed (also SPR 2515).
Version 3.0.3 2001-07-28 (CB)
+ (src/omdetect_mod.f90) The photometry aperture radius is now
fixed at 12 pixels, instead of being obtained from a call to get
CAL_getApertureRadius (fixes SPR 2495).
Version 3.0.2 2001-07-24 (CB)
+ (src/omdetect_mod.f90) In the first call to subroutine
"smoothImage", the smoothing parameter has been changed back to
its original value of 3 (it had been changed for the fast-chain
but further tests have shown that the value 3 works okay for the fast-chain) (fixes SPR 2490).
Version 3.0.1 2001-07-24 (CB)
+ (src/omdetect_mod.f90) Array bounds for quality image array changed to
start at 0 instead of 1 (fixes SPR 2482)
Version 3.0 2001-07-20 (CB/VNY) Module "omdetectphotometry_mod.f90" added
to do aperture photometry on the sources (SPR 2091). Quality flag for each
source now set by omdetect (SPR 2092). Extra columns (source aperture radius,
x and y positions) output by omdetect so that ommag can correctly
convert the source counts to instrumental magnitudes. The extended
flag for each source now set by comparing the gaussian-fit
parameters with those fitted to the point-spread function. The
confusion flag for each source set according to the distance to
its nearest neighbour source. Boxscale parameter now should be
given in arcsecs (SPR 2094). Program split-up into more modules to
make it easier to read and maintain. Some minor changes made to
make it run faster. Program now works with filter "MAGNIFIER" (SPR 2192)
Algorithm for searching for overlapping sources modified. Some
momory leaks rectified. The improvement in the photometry is
quantified in the tex file.
Version 2.24.2 2001-05-01 (CB)
Limiting plate count rate ammended so that the limiting counts per pixel is
multiplied by the photometry aperture area (fixes SPR
2090). Aperture radius obtained from CAL routine. Parameter
"device" deleted and all pgplot code. Program also tidied up.
Version 2.24.1 2001-02-06 (CB)
Removed old versions of omdetect.
Version 2.24 2001-01-11 (CB)
+ (src/omdetect_mod.f90) Program checks that mediam background >
0.0 before calculating background limitomng count rate (fixes bug
- SPR 2204)
Version 2.23 2001-01-11 (CB)
+ (src/omdetect_mod.f90) Program now stores the source background
count rates in the source-list file so that ommag can correctly
apply the corrections for coincidence losses, etc.
Version 2.22.2 2000-11-08 (JPDM)
+ (src/omdetect_mod.f90) Program now calculates the
detection-limit count rate and outputs the value to the
source-list file.
Version 2.22.1 2000-10-25 (JPDM)
+ (src/omdetectsourceparams_mod.f90) Fix argument list error in
simplex code and rewrote nexttopostion to nearestNeighbourNewParam
to remove recursive nature of call (fix run time problem at estec)
Version 2.22 2000-10-03 (AMK)
------------------------------
+ (src/omdetect_mod.f90) Added 'White ' to the list of possible
filters. Just covers the lower case of 'WHITE' which has been seen in
cycle 0070 SAS file. Filter WHITE is also in the list.
Version 2.20 2000-10-03 (AMK)
------------------------------
+ (src/omdetect_mod.f90) REplace call to getFilterId by OAL call
to filterIdToInt
Version 2.19 2000-0904 (AMK)
+ (src/omdetect_mod.f90) Reinstated the call to CAL_omGetPLa
teScale.
Version 2.19 2000-0904 (AMK)
+ (src/omdetect_mod.f90) added code to read in the quality array.
The task will have to be modified eventually so that the quality
array is processed in order to deal with image pixels that are zero
in the flatfield. Currently these problem image pixels have been
sent to zero.
Version 2.18.3 2000-06-22 (JPDM)
+ (src/omdetect_mod.f90) changed tolerance for extent flag (SSC-SPR-1865)
Version 2.18.2 2000-06-21 (JPDM)
+ (config/omdetect.info) fixed VISIBLE keyword (SSC-SPR-1859)
Version 2.18.1 2000-06-16 (AMK/JPDM)
--------------
+ (config/omdetect.info) added (SSC-SPR 1701)`
+ (src/omdetect_mod.f90) changed RA/DEC from 32 to 64 bit numbers in output file. (SSC-SPR-1769)
+ (src/omdetect_mod.f90) fixed problem with deblending sources giving spurious bad sources
+ (src/omdetect_mod.f90) fixed some memory leaks.
+ (src/omdetectsourceparams.f90) fixed part of deblending code.
Version 2.18: 28 April 2000
Modified documentation to conform to new requirements - SPR 1644
Also fixed checkoutput in test bed
Version 2.17: 14 March 2000
Removed superfluous call release causing seg. fault.
Version 2.16: 1 March 2000
Test harness fixed.
array oveflow problem fixed
Version 2.15: 21 February 2000
Added Cal to Makefile
Version 2.14: 27 January 2000
Effectively complete rewrite of main routines in OMDETECT. New source
detection (multiple scales) + extractor like deblend algorithm and source
parameterisation
Fixed small bug with background determination
Version 2.13: 06 January 2000
Add in flat field and mod8 noise image to create background map to compare
against raw image (maintains poisson nature of data)
Version 2.12.1 (Marco Beijersbergen, 199-12-15)
--------------
- fixed obsolete DAL call
- fixed message calls
version 2.12: 25 November 1999
Fixed problem with stripy images
version 2.11: 22 November 1999
Fixed problem with very small windows (i.e. fast mode windows)
version 2.10: 12 November 1999
Fixed bug in getCounts changed an nx-1 to ny-1
version 2.9: 09 November 1999
Changed background determination method to smoothing+sigma clipping
Changed source detection to sliding box including Poisson statistics if
needed
version 2.8: 29 September 1999
Made omdetect exit cleanly when image is empty.
version 2.7: 28 September 1999
Added error when image is empty.
version 2.6: 24 September 1999
Added checks to allow processing of images with blank areas.
version 2.5: 8 June 1999
Updated Dependencies for V3 delivery.
Updated testomdetect for exit values.
Updated parameters to comply with Standardisation Rules.
Added new subroutine getCounts to sum counts in an elliptical apperture.
Version 2.4: 4 May 1999
Updated DEPEND and src/Makefile for new structure of SAS
Updated 'message' calls in code for new error library.
RA column now produces sensible values
Version 2.3: 10 December 1998
updated Dependancy file RE: mssllib
Version 2.2: 22 October 1998
bug fix in checkoutput in test harness
Version 2.1: 15th Sep 1998
diagnostic message added to print out number of iterations
Version 2.0: 17th August 1998
Algorithm changed to an island search
Test harness improved
Version 1.5: 28th July 1998
images moved to primary array
Version 1.4: 25th June 1998
A workaround was included for the nagace do,while bug. This work around
simply consists of an additional line of output per iteration - it has
no impact on the scientific functionality
Version 1.3: 16th June 1998
SPR 410 closed: gotos replaced by exit
SPR 409 closed: file deleted
SPR 408 closed: .par file editted
Version 1.2
ChangeLog added
DEPEND file edited
Version 1.1: 8 May 1998
Task test harness updated
SPR 224 closed: access privs changed
SPR 225 closed: .par added
SPR 226 closed: fatal call changed to error
SPR 227 closed: copy deleted
SPR 230 closed: datestamp call removed
Version 1.0: 20 March 1998