[digiKam-users] Automatically search for blurred or out-of-focus images

[mrwho]

Good morning.

This is my first post in  this ml, and after several Google searches
couldn't help me. I've also skimmed through the manual, but it either
isn't there or I'm too daft to understand it.

In sum, I'd like to gather or mark all the images that are mostly
blurred or out-of-focus, so I can review them and delete the ones that I
decide are not worth keeping.

I tried to use the Quality sorting function, but I really can't
understand how the several dials do and I invariably end with all my
pictures marked as either red or green.

I'm using digiKam win64 7.2.0 beta2 (but I've been trying since two
versions prior, with the same results).

Someone who has done this with success can please tell me the options
used so I can use as a baseline for my needs?

Thank you. Stay safe.


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[Gilles Caulier-4]

Hi,

The algorithm to analyze the blur level of an image is not yet
designed to check if a part of image is not blur (use case of depth of
field is used for artistic reason).

I plan to propose a project for this summer to a student to work on
image quality algorithms improvements, perhaps based on AI, i don't
know yet...

Best

Gilles Caulier

Le jeu. 14 janv. 2021 à 09:25, MrWho <[hidden email]> a écrit :

>
> Good morning.
>
> This is my first post in  this ml, and after several Google searches
> couldn't help me. I've also skimmed through the manual, but it either
> isn't there or I'm too daft to understand it.
>
> In sum, I'd like to gather or mark all the images that are mostly
> blurred or out-of-focus, so I can review them and delete the ones that I
> decide are not worth keeping.
>
> I tried to use the Quality sorting function, but I really can't
> understand how the several dials do and I invariably end with all my
> pictures marked as either red or green.
>
> I'm using digiKam win64 7.2.0 beta2 (but I've been trying since two
> versions prior, with the same results).
>
> Someone who has done this with success can please tell me the options
> used so I can use as a baseline for my needs?
>
> Thank you. Stay safe.
>
>
> --
> Este e-mail foi verificado em termos de vírus pelo software antivírus Avast.
> https://www.avast.com/antivirus
>

[mrwho]

Thank you for your reply.

If suggestions are getting accepted, I'd suggest a dial to choose the percentage of the image area that is considered to be blurred or out of focus (similar to the duplicates tool).

Best regards.

A quinta, 14/01/2021, 09:26, Gilles Caulier <[hidden email]> escreveu:

Hi,

The algorithm to analyze the blur level of an image is not yet
designed to check if a part of image is not blur (use case of depth of
field is used for artistic reason).

I plan to propose a project for this summer to a student to work on
image quality algorithms improvements, perhaps based on AI, i don't
know yet...

Best

Gilles Caulier

Le jeu. 14 janv. 2021 à 09:25, MrWho <[hidden email]> a écrit :
>
> Good morning.
>
> This is my first post in  this ml, and after several Google searches
> couldn't help me. I've also skimmed through the manual, but it either
> isn't there or I'm too daft to understand it.
>
> In sum, I'd like to gather or mark all the images that are mostly
> blurred or out-of-focus, so I can review them and delete the ones that I
> decide are not worth keeping.
>
> I tried to use the Quality sorting function, but I really can't
> understand how the several dials do and I invariably end with all my
> pictures marked as either red or green.
>
> I'm using digiKam win64 7.2.0 beta2 (but I've been trying since two
> versions prior, with the same results).
>
> Someone who has done this with success can please tell me the options
> used so I can use as a baseline for my needs?
>
> Thank you. Stay safe.
>
>
> --
> Este e-mail foi verificado em termos de vírus pelo software antivírus Avast.
> https://www.avast.com/antivirus
>