Search found 46 matches

by clouzot
Tue Feb 06, 2024 9:36 am
Forum: Feature Suggestions
Topic: Mini-Histogram Stretch Button
Replies: 14
Views: 1068

Re: Mini-Histogram Stretch Button

Oh that's interesting. I never considered the effects of stretching making a difference to the shape or position of the histo curve. I've always just played with the color balance. So I guess what you're saying is that if you do a stretch on the display histo, then the live stack histo should march...
by clouzot
Sun Feb 04, 2024 5:45 pm
Forum: Feature Suggestions
Topic: Mini-Histogram Stretch Button
Replies: 14
Views: 1068

Re: Mini-Histogram Stretch Button

+1 on this request, or anything that could make the Mini Display Histogram more readable. It's my favorite tool for fine tuning the color balance: as the livestacked image is already stretched, the "Mini" will readily show any color imbalance there may be on the sky background, which is a ...
by clouzot
Wed Sep 15, 2021 6:54 am
Forum: Feature Suggestions
Topic: Brightness-dependent controls and enhancements
Replies: 2
Views: 466

Brightness-dependent controls and enhancements

This may sound mysterious, but hopefully quite useful! Sharpcap's Livestack has those simple (yet nice) enhancements that one can use to further improve signal detail (or, on the contrary, blur to lower the noise). Alas, most of them apply to the whole signal no matter what. For example, sharpening ...
by clouzot
Wed Jul 14, 2021 9:51 pm
Forum: SharpCap Beta Testing Forum
Topic: New Feature : Background Subtraction
Replies: 55
Views: 13468

Re: New Feature : Background Subtraction

Robin, There are two problems actually: 1- as your screenshot shows, the histogram is then highly restricted in dynamic range. This makes for very difficult black-mid-white levels adjustments, event with the shift-key modifier (or was it ctrl). Well, I hear myself say, there's always the Auto Stretc...
by clouzot
Tue Jul 13, 2021 8:54 pm
Forum: SharpCap Beta Testing Forum
Topic: New Feature : Background Subtraction
Replies: 55
Views: 13468

Re: New Feature : Background Subtraction

Hi Robin,
just checked with the latest public v4.0 release, I can confirm the problem is there with or without darks/flats.
by clouzot
Mon Jul 12, 2021 10:22 pm
Forum: SharpCap Beta Testing Forum
Topic: New Feature : Background Subtraction
Replies: 55
Views: 13468

Re: New Feature : Background Subtraction

Robin,
Here are some (bad, I'm afraid) raw frames I shot recently
https://mega.nz/file/6cFhFKhL#E21Et3h4q ... A0ll9iKL44

Do you need the matching master dark / flat?
by clouzot
Fri Jul 09, 2021 8:49 pm
Forum: SharpCap Beta Testing Forum
Topic: New Feature : Background Subtraction
Replies: 55
Views: 13468

Re: New Feature : Background Subtraction

admin wrote: Fri Jul 09, 2021 3:40 pm Hi,

do you have any individual frames along with the dark/flat so I can test this?

cheers,

Robin
Thanks Robin,

Not for this session, but I'll save individual frames tonight and will post them here as soon as possible.
by clouzot
Fri Jul 09, 2021 7:17 am
Forum: SharpCap Beta Testing Forum
Topic: New Feature : Background Subtraction
Replies: 55
Views: 13468

Re: New Feature : Background Subtraction

I tested this feature with a recent 7928 beta (not the final release I'm afraid, so it may have been fixed in the mean time) and can report the same behavior with a histogram peak that gets highly "compressed" in dynamics. I was using quite short subs (8s) because of the severe LP from my ...
by clouzot
Wed Mar 31, 2021 10:37 pm
Forum: Feature Suggestions
Topic: Flat generation subtracting dark flat
Replies: 4
Views: 1042

Re: Flat generation subtracting dark flat

Sanjeev, as far as I understand, the option is already there (albeit not advertised in the documentation): if we're capturing flats while dark frame subtraction is on, each and every flat has the master dark subtracted before it is emplaced "on the stack". Unless I got it totally wrong, th...