Bug 134980 - Compare documents should recognize change of an image
Summary: Compare documents should recognize change of an image
Status: RESOLVED WONTFIX
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
Version:
(earliest affected)
6.4.5.2 release
Hardware: All All
: medium enhancement
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: needsUXEval
Depends on:
Blocks: Document-Comparison
  Show dependency treegraph
 
Reported: 2020-07-20 12:10 UTC by mpele
Modified: 2023-09-04 12:50 UTC (History)
5 users (show)

See Also:
Crash report or crash signature:


Attachments
File for comparing (421.81 KB, application/vnd.oasis.opendocument.text)
2020-07-22 06:47 UTC, mpele
Details
File for comparing 2 (503.33 KB, application/vnd.oasis.opendocument.text)
2020-07-22 06:47 UTC, mpele
Details

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Description mpele 2020-07-20 12:10:42 UTC
Description:
The Writer during comparing two documents doesn’t detect changes on images.

Steps to Reproduce:
1. Create file with inserted image.
2. Replace image with a different one and save file with new filename.
3. Compare files (Edit->Track changes->Compare Document...)

Actual Results:
No differences are found

Expected Results:
It has to be detected that it is not the same picture.


Reproducible: Always


User Profile Reset: No



Additional Info:
The software should indicate that the image is not the same.
Comment 1 melda researchers 2020-07-21 06:17:05 UTC Comment hidden (spam)
Comment 2 Dieter 2020-07-22 06:30:30 UTC Comment hidden (obsolete)
Comment 3 mpele 2020-07-22 06:47:03 UTC
Created attachment 163393 [details]
File for comparing
Comment 4 mpele 2020-07-22 06:47:26 UTC
Created attachment 163394 [details]
File for comparing 2
Comment 5 mpele 2020-07-22 06:48:53 UTC Comment hidden (obsolete)
Comment 6 Dieter 2020-08-06 05:24:29 UTC
I confirm the behaviour with you the two documents, you've attached, but I'm not sure, if it is possible for LO to detect content of an image (you also can't change content of an image with LO). So for me it sounds like an enhancement request. Hoping for more input from another person.
Comment 7 Telesto 2020-08-06 07:42:49 UTC Comment hidden (obsolete)
Comment 8 Michael Stahl (allotropia) 2020-08-07 09:00:50 UTC
(In reply to Telesto from comment #7)
> @Michael,
> Some wisdom would be helpful. Is Tracking Changes - in the current
> implementation, in theory - able to detect replaced images?

probably not.
Comment 9 Dieter 2022-02-17 22:05:15 UTC
(In reply to Michael Stahl (allotropia) from comment #8)
> (In reply to Telesto from comment #7)
> > @Michael,
> > Some wisdom would be helpful. Is Tracking Changes - in the current
> > implementation, in theory - able to detect replaced images?
> 
> probably not.

So it's a WONTFIX?
Comment 10 Dieter 2023-08-30 18:38:33 UTC
I take comment 8 as developer advice and think we should close bug as WONTFIX

cc: Design team for final decision
Comment 11 Heiko Tietze 2023-09-04 12:50:51 UTC
(In reply to Michael Stahl (allotropia) from comment #8)
>> Is Tracking Changes .... in theory - able to detect replaced images?
> probably not.
=> WF

Assuming it is possible with some effort I still think an office suite is not an image processing tool. What should be working though is to detect if the source/link URL has changed. So if the request is not to compare two raster graphics please reopen with more details.