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==Convert your images in the FITS format Siril uses (image import)==
==Convert your images in the FITS format Siril uses (image import)==


To process your images with Siril, you must convert them to the FITS format it uses (16-bit unsigned, bottom-top order, 1 or 3 axes). Fortunately, Siril is able to convert some image formats to this format, mainly RAW BMP and NetPBM binaries for images, AVI for films.
To process your images with Siril, you must convert them to the FITS format it uses (16-bit unsigned, bottom-top order, 1 or 3 axes). Fortunately, Siril is able to convert some image formats to this format, mainly RAW, Tiff, Jpeg, PNG BMP and NetPBM binaries for images, AVI for films.


First, the working directory has to be set. Images will be taken from and converted to this directory. Click on "Change dir" at bottom right of the window to change it.
First, the working directory has to be set. Images will be taken from and converted to this directory. Click on "Change dir" at bottom right of the window to change it.


The fill the boxes for source and destination file names for the conversion. Here is a screen capture of the conversion tab, where a sequence of images called <code>IMG_{number}.CR2</code> is being converted to <code>m27_{same_number}.fit</code>.
The fill of the boxes for source and destination file names for the conversion. Here are 2 screen captures of the conversion tab and when a sequence of images called <code>IMG_{number}.CR2</code> is being converted to <code>M8-M20_{same_number}.fit</code>.


[[File:Siril_conversion_screen.png]]
[[File:Siril_conversion_screen.png]]
[[File:Siril_conversion_screen2.png]]


As you can see, the 1 axis/plane/layer format has been deactivated because it has not been tested since the rewriting of Siril, so conversion only works with 3-layer RGB files for now.
Note the message warning you that RAW files are converted to CFA (Color Filter Array) monochrome FITS picture. It is necessary to preprocess DSLR images with this mode. Indeed, due to Bayer matrix consideration, the RGB result of your RAW image is an interpolate picture. In consequence it is useless to preprocess these kind of interpolated data. Contrary to RGB image, CFA image represent the entire sensor data with the Bayer pattern.
The following image shows you a crop of a CFA image. Note that the Bayer pattern (RGGB on this example) is visible.


[[File:Siril_Bayer_Pattern.png]]


Next item of the tutorial: [[Siril:Tutorial_sequence|Work on a sequence of converted images]].
Next item of the tutorial: [[Siril:Tutorial_sequence|Work on a sequence of converted images]].

Revision as of 22:04, 1 August 2014

Siril processing tutorial

Convert your images in the FITS format Siril uses (image import)

To process your images with Siril, you must convert them to the FITS format it uses (16-bit unsigned, bottom-top order, 1 or 3 axes). Fortunately, Siril is able to convert some image formats to this format, mainly RAW, Tiff, Jpeg, PNG BMP and NetPBM binaries for images, AVI for films.

First, the working directory has to be set. Images will be taken from and converted to this directory. Click on "Change dir" at bottom right of the window to change it.

The fill of the boxes for source and destination file names for the conversion. Here are 2 screen captures of the conversion tab and when a sequence of images called IMG_{number}.CR2 is being converted to M8-M20_{same_number}.fit.

Siril conversion screen.png Siril conversion screen2.png

Note the message warning you that RAW files are converted to CFA (Color Filter Array) monochrome FITS picture. It is necessary to preprocess DSLR images with this mode. Indeed, due to Bayer matrix consideration, the RGB result of your RAW image is an interpolate picture. In consequence it is useless to preprocess these kind of interpolated data. Contrary to RGB image, CFA image represent the entire sensor data with the Bayer pattern. The following image shows you a crop of a CFA image. Note that the Bayer pattern (RGGB on this example) is visible.

Siril Bayer Pattern.png

Next item of the tutorial: Work on a sequence of converted images.