[solved] Looking for an image viewer (to compare scaled down digital photos with less image artifacts)

[Ralf Mardorf]

On Wed, 9 Sep 2020 09:38:02 +0200, Kaj Haulrich wrote:
>On 09.09.2020 08.45, Ralf Mardorf via ubuntu-users wrote:
>> On Wed, 09 Sep 2020 07:39:42 +0200, Volker Wysk wrote:  
>>> You could try Geeqie.  
>> 
>> Hi Volker,
>> 
>> thank you, the quality of the images is ok. Unfortunately my computer
>> does not have the resources to use Geekie without side effects.
>> 
>> 6.60.3 Intel Celeron G1840 2.80GHz dual-core
>> Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics
>> Controller 8 GiB RAM
>> 
>> Pro
>> 
>> Scaled down images are ok.
>> 
>> Con
>> 
>> When comparing one picture after the other within one window it takes
>> time until the scaled down picture is rendered. It's quite fast, but
>> not fast enough to compare by switching between pictures. It's what I
>> probably need to get used too.
>> 
>> If comparing one picture after the other in different windows, it
>> takes time until the GTK widget shows a picture. Before it shows an
>> image it's flashing black and white. This does terrorize the eyes,
>> so it's no option.
>> 
>> I suspect that no Linux software can handle raw images? And if
>> software would be able to display raw images, it would probably be
>> way slower than viewing JPEGs.
>> 
>> Regards,
>> Ralf
>>   
>RAW pictures are handled well within Digikam, Sony's ARW included. 
>Digikam has a 'lighttable mode' which makes it easy to compare two 
>picture at once. Digikam doesn't have all the bells and whistles of
>GIMP but a reasonable amount of features for editing - and it is way
>easier to use.
>Regards,
>Kaj Haulrich.

Thank you Kai,

the rendering is ok and also slow, but instead of showing how the image
gets build up, it takes a while and then the finished image is shown. I
didn't find the 'lighttable mode'. However, switching between multiple
instances of Digicam windows works very quick and flawlessly.

No flashing, no unfinished images, that's good.

Viewing RAW images works well, too.

I only need a viewer, so the problem is solved. It would be nice, if it
would be a little bit faster.

If editing a photo is wanted I'll do it with an iPad Pro 3rd gen
12.9", since the software is way better than Krita or GIMP and it's
quasi a tablet with integrated monitor, making it possible to watch the
Apple pencil and the monitor at the same time, so it's like workingwith
pencil and paper. OTOH due to the size viewing and comparing details of
the photos is better on the Linux PC's larger 23.8" EIZO's screen.

Regards,
Ralf