Processing on L'Arciere Celeste

Processing comet images

Sun, 16 Sep 2018 19:03:43 +0000

Page translated by Claude — switch to Italian to read the original article.

In this video tutorial it will be explained how to process comet images so as to obtain the image of the comet stationary among the stars.

The starting data are a series of shots taken by my friend Emmanuele Sordini (http://www.bloomingstars.com/?lang=it) using a Baader-modified Canon EOS 6D mounted on a Pentax 75 SDHF.

Video guide: ScreenTransferFunction and HistogramTransformation

Sat, 17 Feb 2018 13:25:54 +0000

Page translated by Claude — switch to Italian to read the original article.

An extremely simple introductory video on the use of PixInsight’s basic tools:
ScreenTransferFunction
HistogramTransformation
CurvesTransformation

Designed for black-and-white images

LRGB composition in the linear stage with PixInsight

Tue, 14 Mar 2017 22:38:08 +0000

Page translated by Claude — switch to Italian to read the original article.

INTRODUCTION

N.B. The procedure described below is still experimental and may not give the hoped-for results.

At the moment it seems to work quite well on images of objects with broadband emission (galaxies, star clusters) while it gives inconsistent results on narrowband-emission objects.

Any comment will be useful to improve the procedure: contact me at my email address or through the Facebook group "PixInsight Italia"

In recent years, astronomical photography with “aesthetic” purposes has spread widely among enthusiasts thanks to the advent of increasingly sensitive electronic sensors at affordable prices.

The Astro Imaging Channel: Challenge nr 1

Wed, 17 Jun 2015 20:56:08 +0000

On Monday June 22nd 2015 The Astroimaging Channel proposed an image processing challenge (read here) based on a set of RGB images of the Markarian chain.

This was the challenge:

1. Gradient Removal while preserving star color.
A few months back, I wanted to try imaging my blue channel high up in the sky. It didn’t work out as planned and I have a terrible gradient through the image. I’ve been able to get rid of the gradient, but it leaves a bad color cast through my stars. The challenge is to remove the gradient and preserve the star color.