Bug 133907 - Add new tool to perform "film noir"
Summary: Add new tool to perform "film noir"
Status: RESOLVED FIXED
Alias: None
Product: digikam
Classification: Applications
Component: Plugin-Editor-GmicQt (show other bugs)
Version: 0.9.0
Platform: Debian testing Linux
: NOR wishlist
Target Milestone: ---
Assignee: Digikam Developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2006-09-11 14:36 UTC by Robert Small
Modified: 2023-03-21 06:48 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In: 8.0.0
Sentry Crash Report:


Attachments

Note You need to log in before you can comment on or make changes to this bug.
Description Robert Small 2006-09-11 14:36:57 UTC
Version:           0.9.0-beta1 (using KDE KDE 3.5.4)
Installed from:    Debian testing/unstable Packages
OS:                Linux

By this I mean when most of a picture is in grey scale except one element of it. Examples:
http://www.deviantart.com/deviation/29563427/
http://www.deviantart.com/deviation/29568291/
http://www.deviantart.com/deviation/29566627/

I think this could be made faster if not totally automated, I have a few vague ideas how to do this, but I don't think any of them would work straight. Just an idea, I know it could be quite hard to make it totally automated.
Comment 1 caulier.gilles 2006-09-11 14:51:40 UTC
Robert,

We need algorithms to process this job (:=)))) Study algorithms from scratch is not possible...

Gilles Caulier
Comment 2 Robert Small 2006-09-11 15:24:20 UTC
Well, if it's any help, here's how I'd do it in a generic image editor:
1 - Duplicate the basic layer
2 - Desaturate the top layer
3 - 'Cut holes in' the top layer so you can see the bits you want to be colour
Or:
1 - Duplicate the basic layer
2 - Desaturate the bottom layer
3 - 'Cut out' the bits you want to be colour

This should result in what you want, you may need a little 'feathering' at the edges or the odd touch of blur to make it perfect.

I hope this helps.

-- Robert
Comment 3 Matt Rogers 2008-07-10 06:28:46 UTC
*** Bug 162758 has been marked as a duplicate of this bug. ***
Comment 4 caulier.gilles 2022-01-15 09:25:44 UTC
Hi Robert and happy new year,

Please take a look in GMic Qt plugin for digiKam image editor to see if this kind of tool do not exists yet.

Best regards

Gilles Caulier
Comment 5 caulier.gilles 2023-03-21 06:48:31 UTC
For all digiKam Image Editor advanced improvements, we will delegate this the Gmic-Qt plugin which is stable enough everywhere to be used in production. It include more than 400 filters to use by photographers.

https://i.imgur.com/OFerL8H.png