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<h1>ChangeLog</h1>
<p class="abstract">Summary of recent development.</p>
<h2>Changelog of 0.5.10 (Flat-fielding) release</h2>
<p>Release date: 16. January, 2018. </p>
<p>This release is focused on improving of already
developed features.</p>
<h3>Improvements:</h3>
<ul>
<li>Developed new flat-field approach which is mostly like
onto photometry calibration than a plain averaging.
I believes the implementation is correct, from different
points of view, for the first time.</li>
<li>Astrometry has faster lucky-match option, input stars are
sliced by brightness, has enhanced robust algorithms (estimate
of scale, stability, reliability) and some bug-fixes.</li>
<li>Estimation of the photometry calibration is regularised which
leads to more precise and reliable results of photometry,
flat-fielding, etc.</li>
<li>Kombine implements averaging of input frames and the
result frames might be rotated.</li>
<li>Improved estimation of std.errors for aperture photometry
leading to better photometric precision as well as conversion
of some photometric quantities.</li>
<li>All robust algorithms has updated their estimate of scale.</li>
<li>Improved artificial features: background in magnitudes per
square arcsecond, documentation.
<li>Bug-fixes in utilities: phcorr, artificial, votable, list and
the graphical interface.</li>
</ul>
<h2>Changelog of 0.5.9 (Artificial Sky) release</h2>
<p>Release date: 18. July, 2017. </p>
<p>This release is bugfix release of previous 0.5.8 (Artificial Sky).</p>
<h2>Changelog of 0.5.8 (Artificial Sky) release</h2>
<p>Release date: 14. July, 2017. </p>
<p>This release is mostly focused on an artificial sky
and related affairs.</p>
<h3>New features:</h3>
<ul>
<li>The creation of artificial sky as the testing framework.</li>
</ul>
<h3>Improvements:</h3>
<ul>
<li>Robust statistical methods are implemented by more reliable
algorithms.</li>
<li>Flat-fielding problem is fully solved.</li>
<li>Added UCAC5 catalogue. UCAC4 is still default due wider
(photometry) completness.</li>
</ul>
<h2>Changelog of 0.5.7 (Growth Curve) release</h2>
<p>Release date: 25. October, 2016. </p>
<p>This release is mostly focused on growth curve photometry.</p>
<h3>New features:</h3>
<ul>
<li>Growth curve method is implemented for general radial profiles
of stars by using a stable and flexible algorithm. Main goal is
photometry calibration
of total fluxes (one is superior to aperture correction,
independent on seeing) for absolute calibration.
A subjective choice of aperture radius is no more
need and results are more reliable and less noisy.</li>
<li>Statistical estimates of data scatter are on base of minimise
of entropy rather on maximum-likelihood method. Results
has the most minimal dispersion possible and limited mostly
by photon statistics.</li>
</ul>
<h3>Improvements:</h3>
<ul>
<li>More efficient approach and defaults for astrometry.</li>
<li>New astrometry core, better estimation of limits on base of statistical tests.</li>
<li>Implemented astrometry for reflected frames.</li>
<li>Many important gfortran run-time exceptions (zero division, overflow) bugfixed.</li>
<li>A correct estimation of Hessian (also errors of parameters) in robust
optimalisation.</li>
<li>An inverse matrix implemented also for singular case.</li>
<li>The output photometry format is changed: implemented new keywords and features,
only results are saved by default.</li>
</ul>
<h2>Changelog of 0.5.6 (Photon Calibration) release</h2>
<p>Release date: January 05, 2015. </p>
<p>This release is mostly focused on the precise photometry calibration.</p>
<h3>Improvements:</h3>
<ul>
<li>Developed new approach for colour transformations and photometry calibration.</li>
<li>Robust algorithms improved (precise estimation of statistical errors, initial
estimates and better convergence).</li>
<li>Developed a new flat-fielding algorithm (with precision of up to second
order, side product is estimation of gain from series of flats). </li>
<li>Regular system of packaging is preferred (DEB and RPM builders prepared).
Bundle installation is obsolete now. </li>
<li>Changed structure of photometry files. Removed frameconv utility
(merged to phcal).</li>
<li>Bugfixes: phcorr (saturation, null output),
timeseries (reports missing values as undefined) and
using of compressed FITSes.</li>
<li>Docs are generated along with full package.</li>
<li>Plplot replaced by wxMathPlot. Removed dependency on Plplot
(which drops dependency on exact version of wxWidgets). </li>
</ul>
<h2>Changelog of 0.5.5 (Nights Without Convergence) release</h2>
<p>Release date: April 1, 2014. </p>
<p>This release is mostly focused on running tests of improved robust algorithms.</p>
<h3>New feature:</h3>
<ul>
<li>Robust method uses joint estimator of location and scale which
reduces scatter.</li>
</ul>
<h3>Improvements:</h3>
<ul>
<li>Gain is proper photometry correction like flat-field since now.</li>
<li>Cone search supports selection of mirrors of VizieR servers and supports
network timeout recovering.</li>
<li>Preliminary implementation of a general cross-match utility.</li>
<li>Preliminary attempt for PSF.</li>
<li>Google code site is planed for shutdown. Its content has been merged
with homepage to prevent confusing of users.</li>
<li>A final test of astrometry calibration can be suppressed to allow calibrate
with a low-precision (without knowledge of the exact projection for wide-fields).</li>
<li>Bugfix: DATE-OBS set by environment variables, undefined values in conversion
VOTable to FITS, flat-field scaling, </li>
<li>Default photometry system is renamed from Landolt to Johnson (older designations
is incorrect).</li>
<li>Clear code for: command-line interface, conventions for negative declinations,
exit codes of command-line utilities.</li>
<li>Clean-up of unused and obsolete parts.</li>
<li>Updated for wxWidgets 3.0. Planed replace of Plplot by wxMathPlot.</li>
</ul>
<h2>Changelog of 0.5.4 (Photon Rain) release</h2>
<p>Release date: July 31, 2013. </p>
<p>This release is mostly focused on the photometric calibration. </p>
<h3>New features:</h3>
<ul>
<li>Transformation between photometric systems. </li>
<li>Full photometric calibration. </li>
<li>Developed format for light-curve storage. </li>
</ul>
<h3>Improvements:</h3>
<ul>
<li>In astrometry matching (speed-up, robustness, brightness as next comaprison atributte, closed path). </li>
<li>In astrometry (proper motion, UCAC4 as default catalogue). </li>
<li>New approach on photometry pre-corrections (bias, dark, flat-field). </li>
<li>FITS header edition. </li>
<li>Default values for long options. </li>
<li>Changed structure of FITS tables. </li>
<li>Building supports system-wide configuration. </li>
<li>GUI updated to match modern desktops. </li>
<li>Huge expansion of documentation. </li>
</ul>
<h2>Changelog of 0.5.3 (New Generation) release</h2>
<p>Release date: June 29, 2012. </p>
<p>This release is mostly focused on the astronomical engine: photometry, astrometry, listing and kombine. </p>
<h3>New features:</h3>
<ul>
<li>New astrometry, photometry and cone search dialogs. </li>
<li>Tutorials for all basic astronomical tasks. </li>
<li>New implementations: listing (light curves, catalogues, use astrometry calibration) and kombine (spherical projections, geometrical transformations, mosaicking). </li>
<li>Backup methods uses GNU conventions (suppresed cfitsio's !clobbers) </li>
<li>Konve and picko has been removed and ones are provided as externals. </li>
<li>New image display algorithm in View. </li>
<li>Atom-feed. </li>
</ul>
<h3>Improvements:</h3>
<ul>
<li>Docs converted to HTML5. </li>
<li>Docs has been restructured and extended for description of completed features and tutorials </li>
<li>Improved astrometry algorithms (new back-tracking core, abs+rob-fitting code, added least squares, complete update of astrometry code, tuning of parameters and methods on data) </li>
<li>Improvements in robust estimations (core, precision and stability) </li>
<li>Implemented astrometry of reference and relative frame. </li>
<li>Locales-friendly changes </li>
<li>Improved Tuning: new contrast, color band parameters. </li>
<li>Updated for new compilers g++/gfortran </li>
<li>tuning of distribution (used -rpath, clean-ups). </li>
<li>Implemented exposure mask for kombine </li>
</ul>
<h2>Changelog of 0.5.2 (Astrometry) release</h2>
<p>Release date: Oct. 19, 2011. </p>
<p>This release is mostly focused on astrometry. </p>
<h3>New features:</h3>
<ul>
<li>Developed GUI and fitting engine for astrometry. </li>
<li>CLI utilities for astrometry, photometry and listing. </li>
<li>Initial support for VO (cone-search, VOTable). </li>
<li>Now, objects and photometry are stored as HDU tables in FITS files. </li>
<li>New match algorithm on base of back-tracking. </li>
<li>Code for WCS in FITS. </li>
<li>Implemented splashing and resume panels. </li>
<li>Binary builders (and distribution packages) for DEB and RPM based distributions. </li></ul>
<h3>Improvements:</h3>
<ul>
<li>Config files moved to ~/.xmunipack/ directory. </li>
<li>Updated homepage (added pages for new utilities, design). </li>
<li>Adapted for latest wxWidgets (important support for event-driven in without GUI - crutial for run of external utilities, main reason for update to latest wxWidgets, support for floats in spin buttons,..). </li>
<li>Portable implementations for external processes, CLI parameters parsing. </li>
<li>Reimplementation of interface to launching of external processes (portable support of pipelining including chained comands and I/O data passing, very important improvement). </li>
<li>Reimplemented original utilities (classic edition) for new architecture. </li>
<li>Redesigned GUI for display of images (added right panel). </li>
<li>Replacement for side panel (for HDU selection is used combo-box). </li>
<li>Improvemnets of icon (file operation) handling in Browser. </li>
<li>Reimplemented image tunning. </li>
<li>Removed bottom toolbars. </li>
<li>Reimplemented color fits. </li>
<li>FITS header to single window. </li>
<li>Enhanced code for displaing, reimplemented zooming and scrolling of images. </li>
<li>Clean code for threading start/stop, conditional variables (more stability). </li>
<li>Support of different column types in FITS tables. </li>
</ul>
<p>The reimplementation of Color FITS is extremely important step. The backward compatibility is broken. External utilities (rawtran and fitspng) are required in versions above 0.3. </p>
<h2>Changelog of 0.5.1 (Coloring) release</h2>
<p>Release date: Oct, 17, 2010. </p>
<p>This release is mostly focused on color processing. </p>
<h3>Improvements in color processing:</h3>
<ul>
<li>added coloring utility (create of natural color images from a set of single-band ones) </li>
<li>added color space transformation utility (XYZ, Luv, BVR, Scotopic) </li>
<li>added tuning of colors: saturation, hue, white point (Luv is used as the base transformation color space) </li>
<li>advanced GUIs for coloring </li>
</ul>
<h3>Improvements in GUI:</h3>
<ul>
<li>exporting of FITS headers, images and tables in View to another format (png,jpg for images, txt for header and tables) </li>
<li>rewrote archive and list implementation for speed, efficiency and fashion </li>
<li>support for clipboard and DnD, a simple XML serialization </li>
<li>GUI for corrections and averaging </li>
<li>added Console and Preferences </li>
<li>GUI class reimplementation for floating windows (detail, tune,..) </li>
<li>plotting via plplot library </li>
<li>enhanced all functions in browser (list types, icons, labels and arrange) </li>
<li>drop shadow and highlighting icons in browser </li>
<li>started use of updateUI events, custom dialogs and validator (thx to wxWidget bible) </li>
<li>improved speedup in archive, list and image display </li>
<li>reimplemented launching of external utilities in GUI </li>
<li>added GUI for import of RAW pictures </li>
<li>implemented search in metadata in Browser </li>
<li>design improvements </li>
<li>enhancements in display and tune dialogs </li>
<li>significant improvements in image displaying </li>
</ul>
<h3>Improvements in command line utilities:</h3>
<ul>
<li>corrections for dark,flat and bias </li>
<li>averaging of dark (biases) and flats </li>
<li>adapted meandark, autoflat, darkbat and flatbat to a new fashion </li>
<li>founded munipack CLI interface (we're on the way to use only xmunipack and munipack binaries) </li>
</ul>
<h3>and finally:</h3>
<ul>
<li>in docpage, forked classic edition, improvements of homepage design </li>
<li>new doc pages: color FITS specification, color processing, tune </li>
<li>reimplemented linux installer (very very hard work!) </li>
<li>bugfixes (see issues) </li>
</ul>
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