15th Feb 2024: Astro Pixel Processor 2.0.0-beta29 released - macOS native File Chooser, macOS CMD-Q fixed, read-only Fits on network fixed and other bug fixes
7th December 2023: added payment option Alipay to purchase Astro Pixel Processor from China, Hong Kong, Macau, Taiwan, Korea, Japan and other countries where Alipay is used.
Apologies to start, complete newbie. So stacked a set of Lights, darks, flats, dark frames from an OSC, using a Quadband filter. Did two separate stacks, one with Ha extracted, one with OIII extracted. Saved both as TIFF. Then loaded both TIFFs back in using Combine RGB. Won’t let me combine as the original stacked them as 2 different sizes 😕. Went into photoshop and resized one, tried again but because PS ‘resamples’ to the new size, all the stars are screwed up as it doesn’t align properly. What am I doing wrong or missing ?
No problem being a newbie and I wouldn't say you are as you're already into narrowband extraction etc. 😉 You do the OIII extraction and process that result, then save it as fits. Same for Ha. Then you restart APP (or clear the data) and load in Ha and OIII and label them as such (multi filter processing) and go to the normalize tab (5) and normalize the light against each other. Then you click on "save normalized frames" and then you can nicely combine them.
If you run into an issue, happy to help. Good luck!
