Bug 387051 - Fits Viewer Data Scaling Problem
Summary: Fits Viewer Data Scaling Problem
Status: RESOLVED NOT A BUG
Alias: None
Product: kstars
Classification: Applications
Component: general (other bugs)
Version First Reported In: unspecified
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: Jasem Mutlaq
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-11-18 02:10 UTC by philip.s.king
Modified: 2017-11-18 07:32 UTC (History)
0 users

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

Attachments
FITS file exhibiting the issue (618.75 KB, image/fits)
2017-11-18 02:10 UTC, philip.s.king 		Details
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Description philip.s.king 2017-11-18 02:10:57 UTC 
Created attachment 108934 [details]
FITS file exhibiting the issue

Hello, I suspect there may be an issue with the FITS viewer related to data scaling. The test image was taken using the ST-i camera using Ekos.

Version 2.8.7
Build: 2017-11-17T10:55:26Z

Steps to reproduce:
1. Open image in FITS Viewer (test image attached)
2. Click histogram toolbar button
3. Change min field to 4 (or anything else)
4. Click apply
5. Try to change min back to 0 (fails)
Comment 1 Jasem Mutlaq 2017-11-18 07:32:53 UTC 
That's normal. You can undo the action to restore last minimum point. When you change the minimum, you essential clip all pixel values below this threshold. But you can always click undo to go back.