Using a pedestal to prevent over-subtraction of dark frames is a common necessity for narrowband imagery. In the video learn what to look for and how to use it.
Here is the latest and greatest version of Selective Rejection, an Adam Block innovation. Harmut Bornnemann added a small feature to his GAME script (at my request) that enables this new and improved way to reject artifacts in images.
This lesson comes from Office Hours with Adam. Here a gentleman is having problems getting his flats to work. I demonstrate what to look for- especially big red flags!
Here is a PixInsight Forum response that demonstrates the nature of Cosmetic Correction, Star Detection, and SubFrameSelector all in one sweet small example.
This lesson focuses on a common issue- often encountered by CMOS camera users. A demonstration of the problem and its solution is shown. In addition, the method of fine tuning flats is also shown.
This lesson focuses on a common issue- often encountered by CMOS camera users. A demonstration of the problem and its solution is shown. In addition, the method of fine tuning flats is also shown.
It is possible to have StarAlignment "succeed" in the alignment process with OSC/DSLR images- and yet the images will not be aligned! See the answer to the mystery and learn why in this lesson.
This lesson, taken from PI Horizons as part of an image processing example, demonstrates a fundamental technique of shifting the Hue of data using CurvesTransformation and Color Mask (if necessary).
I consider this an important lesson! I made a common error which I suspect is very easy to do and might be a stumbling point for others. So I show the problem and the solution. This highlights the basic ideas behind ChannelCombination, LRGBCombination and ChannelExtraction.
Learn a little about Poisson Noise and calculate the Gain and Read noise of your detector. These concepts pervade image processing generally and are used in some Pixinsight tools. This lesson demonstrates the use of the BasicCCDParameters script.
This video (teaser) describes the inner workings of LGRB Combination and the techniques used to manage the results. Typically image processors do not pay much attention to this step and simply combine the images...but there is much more to it! Join AdamBlockStudios to see the full video.