... Hi Neil, Many Thanks for drawing people attention to this. A couple of questions: 1) I don't understand what benefit you would get if you continue to save ...
Dear, I am looking for advice on the best way to "stack" two color FITS (32 bits float) images that have fairly different statistics. Image A is a combination...
No, it would not be correct to weight the images. That way, you would be removing the valuable signal from the 7x10 image, and getting more of the noise in the...
You might also want to look at the process of stacking images with differing dynamic ranges in Photoshop CS3. I am still trying to get to grips with PS CS3 -...
Folks, please forgive a short commercial interruption that may be of ... CCDWare is pleased to announce the immediate availability of the following products: ...
Hi, I am interested in building or acquiring a skycam for my roll off roof ob. Don't want to mortgage the house over this. I've scoured the web but have not...
... Think of it this way. The sRGB color space represents the range of values that you *can* work with. Like the range of choices on a bingo card. Unless you...
Hi Bob, ... I have a prototype all sky camera system that was relatively cheap to put together. http://www.beskeen.com/allskycam.shtml Something akin to this...
Thank you, Ron. Would it be wise to apply a white balance for each image before stacking (adding) them ? One (the one without LPS) looks very red. Pierre ... ...
Jim, RBI is the phenomenon where long wave light energy (red to IR) releases electrons in the silicon volume below the pixel. The released electrons either...
Dear Folks, In a nutshell -I'm new to the group; and just moved to CCD from film. I've used very modest mounts in the past, including barn door trackers, for...
You are adding data, which has no idea (in and of itself) what color even is. <G> In other words, you are combining samples, and you might as well deal with...
Hi Neil, ... I don't mean to be argumentative here, and I'm certainly no expert in colour management, but I guess it comes down to the question "do ICC aware...
Have just joined this group.Have a GSTAR-ex CCD Camera on a CPC8, presently using this for live view on a screen. Wonder if any of the group have added a...
Al, I am only a small distance down the road in this hobby - but might have some useful suggestions Do you have amount ? If not, then you should consider this...
Excellent post, and I completely agree. I made the point on another website that I could see no difference in my own astroimages on my website (processed in...
Sorry, Freudian slip <g>: "With color management turned OFF, open them side by side to see if there is a difference, and then you can assess this more...
I see only subtle differences on my current monitor, Steve. I suspect that would change from monitor-to-monitor, though. I wonder if the "perfomance impact"...
Neil, that's a good question- I don't know, but if you look at the size difference between the embedded versus non-embedded image, it is minor. So perhaps...
Al, I started out with an ST-237 S BIG camera , which was unguided. Images were poor, even with a good mount. As soon as I borrowed an auto guider, my images...
Hi Paul, I did as you said and did the rollovers on the link you provided. And, sure enough, my newly installed FF3 showed the colors properly. That's a great...
Hi Neil, Thanks. Now If I understood correctly when you open Photoshop you are using as working space sRGB ? FRam what I knoe about Color Management that is...
Addendum: If you want to put a icon on your desktop you will find the executable file WinColor.exe in the following directory C:\Program Files\Pro Imaging...
Finally got some clear sky in Ohio. This is my first color image with the Planewave CDK 12.5 - M27. This images is only RGB, no luminance yet. I used some...
These looked identical in FF3 with default color management settings (ie. off) on my system with just a plain jane Samsung 940b flat screen. Rainer wrote that...
Thanks, guys. I do have Ron's book, by the way. It's just that even his section on the'Cheapest' way to go is out of my budget. I've actually been on the...
Hello group the other night i imaged M16 Ιn IR http://www.astrovox.gr/forum/album_pic.php?pic_id=6506 I see some elongation especially in the edges of the...
Hi Sander, If you download the WinColor.exe prgram you can play around yourself and there you can see that the Adobe RGB color space is far wider then the sRGB...
... The elongation is along the same axis everywhere in the image, so it's probably not related to collimation or other optical characteristics. It's difficult...
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