History of the ASTAP, Astrometric stacking program

hnsky movie
            hns_move.gif History:

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2018-12-13, ASTAP 0.9.146 Fixed live distance calculation.
2018-12-13, ASTAP 0.9.145 Fixed solving JPEG images.
2018-12-09, ASTAP 0.9.144 Released MacOS version with correct color and DCRAW integrated.
2018-12-08, ASTAP 0.9.144 More menu improvements.
2018-12-07, ASTAP 0.9.143 Some menu improvements.
2018-12-05, ASTAP 0.9.142 Added the possibility to force the star database used.
2018-12-04, ASTAP 0.9.141 Added importing PFM format (32 bit float export from Photoshop). Fixed a problem in PPM/PGM reading.
2018-12-04, ASTAP 0.9.140 Mayor overhaul in stretching routine. Colour preserving stretching introduced. Faint stars and nebula keep now their colour. 
2018-11-27, ASTAP 0.9.139 Small changes, introduced artificial colouring function in pixel math.
2018-11-25, ASTAP 0.9.138 Adapted solving for very large fields. Introduced cropping and "forge small search steps" for this.
2018-10-30, ASTAP 0.9.137 Cosmetic changes.
2018-10-29, ASTAP 0.9.136 Fixed some problems with file selection.
2018-10-29, ASTAP 0.9.135 Fixed some problems with RAW files.
2018-10-29, ASTAP 0.9.134 Allowing stacking of DSLR RAW files directly.
2018-10-27, ASTAP 0.9.133 Improved help file and link.
2018-10-26, ASTAP 0.9.132 Improved dark images handling for sensors with amp-glow.
2018-10-24, ASTAP 0.9.131 Image dimensions in degrees is now also indicated after solving.
2018-10-22, ASTAP 0.9.130  Some minor menu corrections
2018-10-20, ASTAP 0.9.129  Raspberry PI 3 version
2018-10-19, ASTAP 0.9.129  macOS version
2018-10-11, ASTAP 0.9.128, Improved equalising background for image stitching mode (mosaic). Fixed some small bugs.
2018-10-10, ASTAP 0.9.127, Fixed PlateSolve2 command line for use with SGP or APT and DSLR cameras. Start position was only taken from FITs header not command line. Added log file called "documents\astap_log.txt" for PlateSolve2 commands only.
2018-10-8, ASTAP 0.9.126, Overhauled the image stitching routine (mosaic). Better adaption to different tiles. Overhauled vertical/horizontal swap routine to fix one image line
2018-10-5, ASTAP 0.9.125, Overhauled stack history in FITS header. Now full stacking history available in FITS header
2018-10-4, ASTAP 0.9.124, Stacking speed at least four times faster!
2018-10-2, ASTAP 0.9.123, Made dark spot filter permanent active. Improved the dark spot filter.
2018-10-1, ASTAP 0.9.121/122, fixed a problem combining colours with one rotated.
2018-10-1, ASTAP 0.9.120, added the possibility to add a pedestal value to the final stack result to prevent negative values.
2018-9-29, ASTAP 0.9.119, Fixed a tiny error (1,5 pixels) for center position calculated by the solver.
2018-9-28, ASTAP 0.9.118b, Gained 1% astrometric solving speed by stripping some code in star database read routine. Note that the 32 bit version performance 66% slower in a 64 bit system. So download the 64 bit version if your system is 64 bit.
2018-9-27, ASTAP 0.9.118, Fixed a bug in reading star database for finding astrometric solution, slower speed but increased reliability.
2018-9-25, ASTAP 0.9.117a, PlateSolve2 mode, program waits with closing till apm file is existing on disk.
2018-9-25, ASTAP 0.9.117, Optimized magnitude control loop. Solving about twice as fast.
2018-9-25, ASTAP 0.9.116, Optimized star detecting algorithm using images from Astrometry.net upload.
2018-9-24, ASTAP 0.9.115, Added the -s and -t command line option. Added some checks for file handling. Writes and additional .ini file in PlateSolve2 command line mode for debugging.
2018-9-21, ASTAP 0.9.114, Perfected search pattern in the sky removing any duplication.
2018-9-20, ASTAP 0.9.113, Bug fix edition. Achieving blind solve of a 50 seconds exposure with an offset of 180 degrees distance in 380 seconds!
2018-9-19, ASTAP 0.9.112, Adapted -32 bit fits reader to 0..1 scale.
2018-9-19, ASTAP 0.9.111, Relaxed on double star detection. Some minor fixed and added some hints.
2018-9-16, ASTAP 0.9.110, Fixed a slow down by star detection.
2018-9-16, ASTAP 0.9.109, Fixed some other problems.
2018-9-16, ASTAP 0.9.107, Fixed binning.
2018-9-16, ASTAP 0.9.106, Mayor overhaul in solving engine. Introduced down sampling/binning. Numerous small improvements.
2018-9-12, ASTAP 0.9.105, Increased accuracy of angle reported by the internal solver. Fixed bug in saving 16 bit images for values above 32k. Added caret indication for fits header. Many small improvements.
2018-9-7,  ASTAP 0.9.104, added test image generation in pixel math. 
2018-9-4,  ASTAP 0.9.103, added a warning for the case that a restore hot-pixels is used and too many pixels are restored. This could happen for cameras with amp-glow.
2018-9-1,  ASTAP 0.9.102, some cosmetic improvements.
2018-8-29,  ASTAP 0.9.101, improved file naming.
2018-8-29,  ASTAP 0.9.100, code optimisation.
2018-8-29,  ASTAP 0.9.99, Added two new filters for LRGB color images. The 3x3mean and 2x2mean. The 3x3mean works wel.
2018-8-28,  ASTAP 0.9.98, Fixed some things in astrometric stacking.
2018-8-27,  ASTAP 0.9.97, For Windows moved astap.cfg from documents folder to to \user\username Fixed a problem plate solving twice.
2018-8-24,  ASTAP 0.9.96, Fixed FWHM calculation. Improved HFD calculation for faint stars.
2018-8-22,  ASTAP 0.9.95, Viewer improvements. Preserving now the plate solving in case the image is cropped. Memo containing the FITS header is now updated instantly in case image is cropped or made mono.  Ctrl-Z is also restoring the FITS header.
2018-8-18,  ASTAP 0.9.94, Added colour annotation of stars if G16 star database is present. Remove G17.
2018-8-16,  ASTAP 0.9.93, Added experimental photometry option to the viewer. After plate solving, select calibration photometry in the viewer tools menu. This will allow magnitude measurement of the stars.  The magnitude values is displayed in the status bar. The G17 database will give BP magnitudes for unfiltered mono CCD's.  If replaced by the G16 and a Johnson-V filter is used it will give Johnson-V  values.  Works for mono/red  channel only.
2018-8-14,  ASTAP 0.9.92a, Minor text and hint updates.
2018-8-13,  ASTAP 0.9.92,   New blink routine. New alignment option to calibrate images only. Some minor menu improvements.
2018-8-05,  ASTAP 0.9.91,   Some minor menu improvements.
2018-7-31,  ASTAP 0.9.90,   Added some functions to pop-up menu of the thumbnails viewer.
2018-7-30,  ASTAP 0.9.89,   Added thumbnails option for viewer.
2018-7-27,  ASTAP 0.9.88a,   Fixed some text labels in the Linux version.
2018-7-27,  ASTAP 0.9.88,   Minor correction in the menus. 
2018-7-26,  ASTAP 0.9.87,   Added a preview button. Preserve filterindex of the openfile and savefile dialogs
2018-7-22,  ASTAP 0.9.86,   Added new remove borders tool (see pop-up menu)
2018-7-22,  ASTAP 0.9.85,   Fixed a fatal problem in sigma clip stacking.
2018-7-19,  ASTAP 0.9.84,   Fixed a run-time problem with de-mosaic Bayer. Introduced manual alignment.
2018-7-16,  ASTAP 0.9.83,   Added super-pixel option for demosaic RAW OSC images.
2018-7-14,  ASTAP 0.9.82,   Added split function for RAW Bayer array images. This will split them into seperate R,G,G, B files.
2018-7-14,  ASTAP 0.9.81,   Fixed conversion routine for digital cameras using DCRAW.

2018-7-13,  ASTAP 0.9.80,  Mayor update. All darks, flats and bias will automatic processed into masters. Activate classify by dark temperature, exposure and flat field filter.
Secondly added color matrix.


2018-7-6,  ASTAP 0.9.79,  Added log file which will be written after stacking.
2018-7-6,  ASTAP 0.9.78,  Fixed a FITS write problems. Improved counting darks, flats and flat-darks
2018-7-4,  ASTAP 0.9.77,  Added export to 16 bit PGM and PPM format. Several small improvements.
2018-7-3,  ASTAP 0.9.76,  Added PGM and PPM format. Added DCRAW program by David Coffin for conversion of many camera files.
2018-7-2,  ASTAP 0.9.75,  Modified & improved LRGB stacking method. Stars are removed from the RGB stack using the most common filter. Then a Gaussian blur is applied with the same factor to remove any square artifacts if any. Fixed a severe problem with uppercase .FIT extension. Added image to FITS conversion tool. Fixed a color stacking problem introduced a week ago.
2018-6-30,  ASTAP 0.9.74,  Improved mosaic mode. Some menu improvements.
2018-6-29,  ASTAP 0.9.72,  Improved mosaic mode. Some menu improvements.
2018-6-28,  ASTAP 0.9.71,  Fixed background routine. Change introduced in v0.9.68 didn't work.
2018-6-26,  ASTAP 0.9.69,  Added star annotation. See tool pulldown menu.
2018-6-26,  ASTAP 0.9.68,  Fixed missing colour for LRGB stacking.
2018-6-23,  ASTAP 0.9.67,  Fixed problem applying oversize twice.
2018-6-22,  ASTAP 0.9.66,  Improved mosaic mode. Introduced drizzle.
2018-6-16,  ASTAP 0.9.65,  Fixed some menu problems for stacking, improved RA, DEC indication, added shutdown after completion option.
2018-5-26,  ASTAP 0.9.64,  Fixed annotation for flipped images (newton style telescopes), and detection missing star database.
2018-5-22,  ASTAP 0.9.62,  Adaption to High-DPI systems
2018-5-20,  ASTAP 0.9.61,  Fixed a problem with viewer data range settings
2018-5-19,  ASTAP 0.9.60,  Added annotation to command line
2018-5-18,  ASTAP 0.9.59,  Introduced deep sky annotation under pull-down menu tools.

2018-5-18,  ASTAP 0.9.58,  Some improvement for stacking.
2018-5-18,  ASTAP 0.9.57,
 Fixed a bug for mono imigaes introduced in version 0.9.56
2018-5-17,  ASTAP 0.9.56,  Fixed Maxim DL file compatibility
2018-5-16,  ASTAP 0.9.55,  Fixed some problems for color image stacking.
2018-5-14,  ASTAP 0.9.54,  Stack menu improvements.
2018-5-13,  ASTAP 0.9.53,  Introduced dark spot filter for CMOS stacked images.
2018-5-13,  ASTAP 0.9.52,  Fixed scroll bars stack menu.
2018-5-12,  ASTAP 0.9.51,  Added the FITS preview option to the file open dialog. See below. Fixed standard deviation indication. Fixed gamma setting when loading an image.

2018-5-11,  ASTAP 0.9.50,  Fixed a problem in the command line in version 0.9.49
2018-5-11,  ASTAP 0.9.49,  Fixed several small items for stacking.
2018-5-8,  ASTAP 0.9.48,  Adapted for the new Gaia DR2 database. It will work with U16, G17 or G18 database.
2018-5-6,  ASTAP 0.9.47,  Introduced  the local equalising command to remove dark areas in stacked images. See pop-up menu. Fixed some small things. Program reads now focal length and pixel size from Maxim DL files,
2018-5-3,  ASTAP 0.9.46,  Changed back the previous setup v0.9.44 for filename as paramstr(1)
2018-5-3,  ASTAP 0.9.45,  Fixed the Platesolve2 command line.
2018-4-30,  ASTAP 0.9.44,  Several small improvements.
2018-4-28,  ASTAP 0.9.43,  Plate solve improvements for images going very deep. So speed improvements plate solving. v0.9.41 and 0.9,42 have a bug for large amount of stars.
2018-4-27,  ASTAP 0.9.40,  Many small improvement. Improved reliability. Introduced overlap based on the number of pyramids in the image.
2018-4-26,  ASTAP 0.9.39,  Small improvements in plate solving . Added a check on number of stars and pyramids in image.
2018-4-25,  ASTAP 0.9.38,  Small improvements in plate solving. Automatic diameter selection
2018-4-24,  ASTAP 0.9.37a,  Build the new command line interface for accessing the plate solver. See command line options
2018-4-23,  ASTAP 0.9.36,  Improved speed conversion PNG, JPG, TIF to FITS.
2018-4-22,  ASTAP 0.9.35,  Modified PlateSolve2 simulation.
2018-4-21,  ASTAP 0.9.34,  Removed PlateSolve2 dependency. Rename the program to PlateSolve2.exe will work using the internal solver.  So full replacement for PlateSolve2.  For a 30 degrees offset if will find a solution after 4 minutes or earlier.
2018-4-20,  ASTAP 0.9.33,  Fixed some detections levels for plate solving.
2018-4-19,  ASTAP 0.9.32,  Added adjustable minimum number of pyramids required. Typical value for stacking 6 and just plate solving 3.
2018-4-19,  ASTAP 0.9.31,  Fixed application path to the U16 files.
2018-4-19,  ASTAP 0.9.30,  Added internal plate solver.
2018-4-18,  ASTAP 0.9.29,  Improved alignment.
2018-4-16,  ASTAP 0.9.28,  Improved alignment. Checking for outliers. Scaling factor no longer required.
2018-4-12,  ASTAP 0.9.27,  Improved log in FITS header. Fixed some bugs. 
2018-4-12,  ASTAP 0.9.26a,  Added some image info to the status bar. Introduced Windows installer. 
2018-4-10,  ASTAP 0.9.26,  Automatic sorting of lights, dark and flats. Pop-up menu has option to update keywords of multiple files. Free sizing of FITS files and noise generator in pixel math. 
2018-4-9,  ASTAP 0.9.25a, Allowing filtering on exposure & temperature for darks and filter for flats.
2018-4-8,  ASTAP 0.9.24, Allowing images of different astronomical scale. Intended for combining RGB of a lower resolution with Luminance images, e.g. H-alpha. Several other improvements
2018-4-5,  ASTAP 0.9.23c, Allowing file name as parameter with spaces. So you set ASTAP as default viewer for FITS, PNG, TIFF, JPG. Improved reporting in FITS header.
2018-4-4,  ASTAP 0.9.23a, Introduced results page. Fixed image counting. Added image dimensions to the list. Fixed an icon
2018-4-3,  ASTAP 0.9.22, Several improvements. Allowing combing colour images with H-alpha.
2018-4-2,  ASTAP 0.9.20, Fixed Gaussian blur in LRGB stacking. Fixed runtime error in saving flats and flat darks. Fixed sigma clip stacking for LRGB.
2018-4-2,  ASTAP 0.9.18a, Fixed 16 bit saving.
2018-4-1,  ASTAP 0.9.18, Fixed regional settings. Ignore space character object name aand filter name. Fixed RGB+L stacking.
2018-3-31,  ASTAP 0.9.17, Several fixes LRGB stacking. Fixed color model LRGB stacking.
2018-3-30,  ASTAP 0.9.13b  Big overhaul in stack menu. Now you can stack several objects in one run. RGB and LRGB stacking is also possible.  Files in listview menu can be selective removed, added or stacked. Program uses now images with lowest HFD as reference.
2018-3-23,  ASTAP 0.9.12  Overhauled star detection and image inspector. Improved menu of image equalising.
2018-3-18,  ASTAP 0.9.11 Overhauled alignment menu and manual. Introduced on-line help.
2018-3-17,  ASTAP 0.9.10c Overhauled the PlateSolve2.exe simulation. (rename astap.exe to PlateSolve2.exe Very fast now and FITS images are reduced to window size for displaying in HNSKY.  Some minor corrections.
2018-3-16,  ASTAP 0.9.9a Fixed a PNG and JPEG display problem for Nvidia graphic cards.
2018-3-14,  ASTAP 0.9.9 New internal star alignment! No need for plate solver !
2018-3-4,  ASTAP 0.9.7 Fixed Platesolve2 simulation. (Rename astap.exe to platesolve2.exe)
2018-2-20,  ASTAP 0.9.5 Small improvements.
2018-2-19,  ASTAP 0.9.4 Several small improvements, oval shape selection area for removal deepsky.
2018-2-18,  ASTAP 0.9.2, 0.9.3 Several small improvements
2018-2-16,  ASTAP 0.9.1,  Added tilt measurement to CCD inspector, Added background equalization tool under pixel math.
2018-2-14,  ASTAP 0.9.0,  Improved vieuwer low, medium, high settings. Fixed deleting files of astromentry.net.
2018-1-15,  ASTAP 0.4.4,  Added multi selection in image list.
2017-12-17,  ASTAP 0.4.3,  Improvement in CCD inspector and image analyser.
2017-12-16,  ASTAP 0.4.2,  Added CCD inspector. Fixed image analyser problem.
2017-12-16,  ASTAP 0.4.1,  Added access to Astrometry.net running in a Win10 Linux subsystem.
2017-12-12,  ASTAP 0.4.0b,  Fixed long commands for astrometry.net
2017-12-12,  ASTAP 0.4.0a,  Added some error messages for local astrometry.net. Improved live reporting astrometry.net
2017-12-12,  ASTAP 0.4.0,   First release Linux version, Several improvements.
2017-11-30,  ASTAP 0.3.0,  Several improvements.
2017-11-30,  ASTAP 0.2.2,  Several improvements, introduced median-equalise filter.
2017-11-29,  ASTAP 0.2.0,  Several improvements.
2017-11-24,  ASTAP 0.1.5,  Added mosaic equalise background mode.
2017-11-23,  ASTAP 0.1.4,  Added sort possibility to image list. You can sort on HFD or any other column.
2017-11-22,  ASTAP 0.1.3,   Stacked files are now marked as ......stacked.fit and ignored if tried to stack again. Adapted tiff 32 bit export to full range. Moved naxis3 up to position 5 in the keywords. Finding solution  is now done at the beginning of  stacking (if header is not used}
2017-11-21,  ASTAP 0.1.1a  Fixed some minor things. Simplied pixel size for astrometry.net solver.
2017-11-20,  ASTAP 0.1.1  Many small improvements. CMD console is now monitored and if closed action is taken.
2017-11-19,  ASTAP 0.1.0  Added SIP (Simple Imaging Polynomial)  support, Write FITS files as multiple of 2880 bytes. Fixed several small things.
2017-11-17,  ASTAP 0.0.9a  Fixed color conversion using astrometry.net,  added the header from first FITS to stacked image. Log follows resizing of stack menu. Improved Windows interface,. Adaption to PixInSight -32 bit files.
2017-11-16,  ASTAP 0.0.8  Fixed some problems including using PlateSolve2.
2017-11-15,  ASTAP 0.0.7a  Fixed Digital development Process for color and some small improvements.
2017-11-13,  ASTAP 0.0.7  Improved viewer menu and performance. Improved export routine including streched TIFF files and variable JPEG compression. Select the correct file in file dialog.
2017-11-12,  ASTAP 0.0.5  New dark filter.
2017-11-11,  ASTAP 0.0.4  Added a FITS crop function using the right mouse button.
2017-11-10,  ASTAP 0.0.3  Fixed a dark subtraction problem in mode average.
2017-11-10,  ASTAP 0.0.2  New name ASTAP. Added digital development and several other improvements.
2017-11-8,  ASTAP 0.0.1  Added Astrometry.net local and several improvements.
2017-11-5,  ASTAP 0.0.0e  Fixed regional decimal seperator problem.
2017-11-2,  ASTAP, Astrometric Stacking Program version 0.0.0 (2017-11-2). This replaces HNS_FV



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