Re: [darktable-dev] Deconvolution and Python framework

2017-10-14 Thread Tim Rolph 
Hi All, have any of you guys seen this work? Sounds promising.

http://appsrv.cse.cuhk.edu.hk/~leojia/projects/motion_deblurring/index.html

Tim.

On Wednesday, 11 October 2017 20:59:59 BST Heiko Bauke wrote:
> Hi,
> 
> Am 11.10.2017 um 19:11 schrieb Martin Marmsoler:
> > Gimp use python as scripting language. It might be easier to port for
> > Gimp?
> 
> by the way: there is a Richardson Lucy sharpening filter in G'MIC.  (As
> far as I understand this is a non-blind deconvolution algorithm.)
> 
> 
>   Heiko


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Re: [darktable-dev] Deconvolution and Python framework

2017-10-14 Thread Tobias Ellinghaus 
Am Donnerstag, 12. Oktober 2017, 22:30:51 CEST schrieb Aurélien PIERRE:

[...]

> I believe that it should be applied right after denoising since this is
> low-level signal processing. Also a Total Variation and a Wiener filter
> denoising methods should be added to the modules for better results with
> the deconvolution (Total Variation is litteraly a gradient computation
> plus 3 lines of code similar to the Unsharp Mask equation ; I'm not
> familiar with Wiener filters, althouh they come often in the litterature
> as a RL pre-processor).

Wouldn't it be better to have it after lens distortion? If it's meant to fix 
camera shake then having lens distortion in the way seems like a bad idea.

> mit herzlichen Grüße ;-)

:)

> *Aurélien PIERRE*
> aurelienpierre.com 

Tobias

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Re: [darktable-dev] possible data loss scenario

2017-10-14 Thread David Houlder 

On 14/10/17 03:53, Alexander Rabtchevich wrote:
As I understand, the desired action to be click-less is mouse 
scrolling over a control. 

Yes, but also...


Why should it hook keyboard actions?
So you can use the arrow keys, and maybe page-up, page-down, etc. to 
adjust the slider. Maybe the hover could just temporarily steal focus 
for those keys, but it might be less confusing to grab all keyboard 
input and just discard keystrokes that don't mean anything to the 
slider. That would fail gracefully in the sense that the discarded 
keystrokes can't wreak havoc in some other widget.


cheers
David

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