AllSkEye Preview Version 0.9.24.x Released
I have just released a new AllSkEye Preview version 0.9.24.X which is now available on the download page. These are the changes:
- New: ‘Latest Image’ stacking (PRO)
- Change: Star Overlay ‘tweaks’ (hopefully improvements).
- Bug: Various star overlay bug fixes.
Latest Image Stacking:
Firstly, this feature is still a bit experimental but I would like to get feedback so I thought I put it out there and see what happens . Secondly for various reasons the ‘latest image’ function was the easiest place to add this for now. There are other (possibly better) ways to integrate this into AllSkEye which I have on my radar but for now this was the best option.
How does it work? With the improvements in the star overlay setup it is now possible to fairly accurately map a pixel position on the image to alt/az and calculate ra/dec. With this in place it is possible to calculate where a particular pixel would have been at a different point in time. When the images are stacked, each pixel inside the image circle is stacked onto the position it would have been when the first image in the stack was created. Stacking is by ‘average’ for now as this does mean the app does not need to ‘remember’ any pixel values from previous images. The stack is continued until the specified number of images is reached and the final result is saved alongside the ‘latest image’ (and/or FTP’d to the webserver).
In practice this means that if you ask the app to stack 10 images then you need to wait for 10 cycles of the latest image to occur until you image appears in the latest image folder. It is however also possibe to run multiple stacks at the same time so you can ask the app to stack 10 images and also to run 5 stacks at the same time and you will get an update of the stacked image on every second cycle of the latest image function. You can for example also set it to stack 4 images and run 4 stacks at the same time and (once the first stack completes for the first time) you will get a new stacked image on every update of the latest image. It is however a resource intensive process so running multiple stacks will need more CPU and memory so a bit of experimentation is probably needed.
Please have a quick read in the manual which explains the function in greater detail. Here is the relevant section in the online docs: https://allskeye.com/userdocs/keogram_stacking_projection.htm
As always if you spot any problems, please let me know: https://allskeye.com/community/preview-releases/allskeye-version-0-9-24-x-feedback/