Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.

 

Go Back   Doom9's Forum > Capturing and Editing Video > Avisynth Usage

Reply
 
Thread Tools Search this Thread Display Modes
Old 25th March 2024, 23:29   #1  |  Link
coolgit
Registered User
 
Join Date: Apr 2019
Posts: 217
How to brighten stars

Any tools to brighten white stars in space?

Usually use finesharp but need another way with overly sharpening other objects.
coolgit is offline   Reply With Quote
Old 26th March 2024, 01:57   #2  |  Link
johnmeyer
Registered User
 
Join Date: Feb 2002
Location: California
Posts: 2,691
I would first try just using the contrast control in VD or my NLE. I don't think sharpening is the right approach.
johnmeyer is offline   Reply With Quote
Old 26th March 2024, 14:00   #3  |  Link
coolgit
Registered User
 
Join Date: Apr 2019
Posts: 217
Nope that doesn't work. I need to focus on the stars only if possible.
coolgit is offline   Reply With Quote
Old 26th March 2024, 14:47   #4  |  Link
poisondeathray
Registered User
 
Join Date: Sep 2007
Posts: 5,346
Use a mask to isolate the stars

If the stars were whiter and brighter than other objects , use a luma mask to include, and a saturation mask to exclude other objects . Perhaps adding a positional mask (top/bottom) if the shot were located on the top of the shot. If the shot was complex, you might have to use other techniques such as rotoscoping
poisondeathray is offline   Reply With Quote
Old Yesterday, 07:07   #5  |  Link
coolgit
Registered User
 
Join Date: Apr 2019
Posts: 217
I am looking for a mask that only accept white stars if surrounded by blacks only.
coolgit is offline   Reply With Quote
Old Yesterday, 15:03   #6  |  Link
poisondeathray
Registered User
 
Join Date: Sep 2007
Posts: 5,346
Quote:
Originally Posted by coolgit View Post
I am looking for a mask that only accept white stars if surrounded by blacks only.
Use a luma mask to isolate depending on range of brightness

In avisynth, Dogway has a lumamask function in MasksPack.avsi
https://github.com/Dogway/Avisynth-S...MasksPack.avsi

In NLE's almost all have variations of this type of mask under different names

Apply your levels or brightness corrections using the mask

Another way is to use curves

If you need more help , post a sample of your source
poisondeathray is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 07:21.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.