Bug 450605

Summary:	Comparing different crops of the same image
Product:	[Applications] gwenview	Reporter:	Mihai Sorin Dobrescu <msdobrescu>
Component:	general	Assignee:	Gwenview Bugs <gwenview-bugs-null>
Status:	REPORTED ---
Severity:	wishlist	CC:	msdobrescu
Priority:	NOR
Version First Reported In:	21.08.3
Target Milestone:	---
Platform:	Gentoo Packages
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	How comparison works now 2560x1600 image 1600 x 1200 image Sort of desired zoom

Description Mihai Sorin Dobrescu 2022-02-20 09:28:56 UTC

Created attachment 146968 [details]
How comparison works now

SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***

Getting many images and crops of the same photos, during selection by using the view feature, it's difficult to assess the images relation with respect to their part taken from the original picture and to the compared crops sizes.

The reason is, on one hand, the dedicated area for each displayed image, designed to be even, and the zoom ratio for images of different sizes, on the other hand.

STEPS TO REPRODUCE

As an example, I have submitted two crops (freely available on the Internet) and the default view.

OBSERVED RESULT

The image to the left is actually smaller than the one to the right, but their sizes and zoom may lead to the conclusion is reversed.

EXPECTED RESULT

The feature should provide an option/command to display the images according to their pixel ratio, including when zoomed, that would show the left image at its real size by comparison to the right image.
At default zoom should be able to show the images entirely, with the expected uneven areas, due to the images ratios.

SOFTWARE/OS VERSIONS

Operating System: MocaccinoOS (a Gentoo derivative)
KDE Plasma Version: 5.23.5
KDE Frameworks Version: 5.88.0
Qt Version: 5.15.2
Kernel Version: 5.10.82-mocaccino (64-bit)
Graphics Platform: X11
Processors: 16 × 11th Gen Intel® Core™ i7-11700K @ 3.60GHz
Memory: 61.6 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 1060 6GB/PCIe/SSE2

ADDITIONAL INFORMATION

Comment 1 Mihai Sorin Dobrescu 2022-02-20 09:30:18 UTC

Created attachment 146969 [details]
2560x1600 image

Comment 2 Mihai Sorin Dobrescu 2022-02-20 09:31:02 UTC

Created attachment 146970 [details]
1600 x 1200 image

Comment 3 Mihai Sorin Dobrescu 2022-02-20 09:46:43 UTC

Created attachment 146971 [details]
Sort of desired zoom

The image shown how it should look regarding the vertical aspect ratio, but the image to the right does not fit in the view, hence is cut out the view.
Could not make it as desired and displayed entirely because the application allocates even areas for the images.
Also, could not set manually a zoom below the computed limit of 50% in my tests. When tried to set manually, typed 30 in the combo edit box, but it set 667% or other values. This is unmanageable manually.