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* Image registration; supported methods:
* Image registration; supported methods:
** Global star alignment (rotation + translation)
** Global star alignment (rotation + translation)
** Translation using DFT centered on an object, generally used for planetary images
** Translation using DFT centred on an object, generally used for planetary images
** Translation using PSF of a star, generally used for deek-sky images
** Translation using PSF of a star, generally used for deep-sky images
** Manual translation with two preview renderings of the current image with reference frame in transparency
** Manual translation with two preview renderings of the current image with reference frame in transparency
* Registered sequence export
* Registered sequence export
** Supported export file formats: Siril FITS sequence, SER sequence, uncompressed AVI files, GIF up to 0.9.4, MP4 and WEBM web publising video formats since 0.9.5
** Supported export file formats: Siril FITS sequence, SER sequence, uncompressed AVI files, GIF up to 0.9.4, MP4 and WEBM web publishing video formats since 0.9.5
** Optionnal cropping and resizing of the exported images
** Optional cropping and resizing of the exported images
* Image stacking
* Image stacking, with optional additive or multiplicative normalization
** Summing
** Summing
** Median
** Median
** Percentile clipping
** Average with rejection (percentile, sigma, median, Winsorized and linear fit clipping)
** Sigma clipping
** Pixel minimum or maximum across images
** Median sigma clipping
** Winsorized sigma clipping
** Linear fit clipping
** Pixel minimum/maximum
* Enhancement and processing of final images
* Enhancement and processing of final images
** Lightness/contrast cursors on each layer, different scaling modes (linear, log, square root, squared, asinh, histogram equalisation), negative and false colour rendering and clipping
** Lightness/contrast cursors on each layer, different scaling modes (linear, log, square root, squared, asinh, histogram equalisation), negative and false colour rendering and clipping
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* A command line for various processing functions, only available from the GUI, see the list of [[Siril:Commands|available commands]].
* A command line for various processing functions, only available from the GUI, see the list of [[Siril:Commands|available commands]].
* A star finding algorithm with PSF information
* A star finding algorithm with PSF information
* Image compositing tool, combining and aligning multiple layers (1 to 6) with custom colours into a resulting image, with luminance layer support
* Image compositing tool, combining and aligning multiple layers (2 to 6) with custom colours into a resulting image, with luminance layer support
* Plotting various pieces of information about an image sequence (FWHM, star roundness, periodic error of the mount, amplitude, background level...)

Revision as of 01:15, 5 December 2017

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Message definition (Siril)
New features are being introduced quite regularly. Here is a list of main features:
* Native image format support
** Unsigned 16-bit and floating point 32-bit FITS files ([[Siril:supported_FITS|other FITS]] are converted to this format on-the-fly)
** [[SER]] files and FITS cubes for one-file sequences
** AVI and many other film files, their support is being [[SER|dropped]] in favour of SER.
* Image conversion (to the native FITS format only)
** Supported input types: 8-bit and 16-bit BMP, TIFF, JPEG, PNG files, NetPBM binary images, RAW DSLR images.
* Pre-processing of images with offset, dark and flat images, cosmetic corrections and synthetic offsets
* Image registration; supported methods:
** Global star alignment, based on star detection and matching using a variable number of degrees of liberty
** Translation using DFT centred on an object, generally used for full-image planetary images
** Translation using PSF of a single star, generally used for deep-sky images or photometry
** Manual translation with two preview renderings of the current image with reference frame in transparency
* Registered sequence export
** Supported export file formats: Siril FITS sequence, SER sequence, uncompressed AVI files, GIF up to 0.9.4, MP4 and WEBM web publishing video formats since 0.9.5
** Optional cropping, resizing, linear pixel value scaling and normalization of the exported images
* Image stacking, with optional additive or multiplicative normalization
** Summing
** Median
** Average with rejection (percentile, sigma, median, MAD, Winsorized, linear fit and GESDT clipping)
** Pixel minimum or maximum across images
* Enhancement and processing of final images
** Visualization only: lightness/contrast cursors, scaling modes (linear, log, square root, squared, asinh, histogram equalisation), negative and false colour rendering and clipping
** Background gradient removal tool
** Cosmetic correction tool
** Colour calibration, manual or automatic using photometry after plate-solving
** Deconvolution
** Histogram transformation
* A command line for various processing functions, available from the GUI or from a command-line version of siril, see the list of [[Siril:Commands|available commands]].
* A star finding algorithm with PSF information
* Image compositing tool, combining and aligning multiple layers (2 to 6) with custom colours into a resulting image, with luminance layer support
* Plotting various pieces of information about an image sequence (FWHM, star roundness, periodic error of the mount, amplitude, background level...) and using the plots to filter out images from a sequence for stacking
* Pixel math to combine images using math formulas

New features are being introduced quite regularly. Here is a list of main features:

  • Native image format support
    • Unsigned 16-bit FITS files (other FITS are converted to this format on-the-fly)
    • SER files
    • AVI and many other film files, their support is being dropped in favour of SER.
  • Image conversion (to the native FITS format only)
    • Supported input types: 8-bit and 16-bit BMP, TIFF, JPEG, PNG files, NetPBM binary images, RAW DSLR images.
  • Pre-processing of images with multi-channel offset, dark and flat images
  • Image registration; supported methods:
    • Global star alignment (rotation + translation)
    • Translation using DFT centred on an object, generally used for planetary images
    • Translation using PSF of a star, generally used for deep-sky images
    • Manual translation with two preview renderings of the current image with reference frame in transparency
  • Registered sequence export
    • Supported export file formats: Siril FITS sequence, SER sequence, uncompressed AVI files, GIF up to 0.9.4, MP4 and WEBM web publishing video formats since 0.9.5
    • Optional cropping and resizing of the exported images
  • Image stacking, with optional additive or multiplicative normalization
    • Summing
    • Median
    • Average with rejection (percentile, sigma, median, Winsorized and linear fit clipping)
    • Pixel minimum or maximum across images
  • Enhancement and processing of final images
    • Lightness/contrast cursors on each layer, different scaling modes (linear, log, square root, squared, asinh, histogram equalisation), negative and false colour rendering and clipping
    • Background removal tool
    • Cosmetic correction tool
  • A command line for various processing functions, only available from the GUI, see the list of available commands.
  • A star finding algorithm with PSF information
  • Image compositing tool, combining and aligning multiple layers (2 to 6) with custom colours into a resulting image, with luminance layer support
  • Plotting various pieces of information about an image sequence (FWHM, star roundness, periodic error of the mount, amplitude, background level...)
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