Bug 19986

Summary:	Gwenview rolls image slightly when rotating JPEG image (some leftmost pixels are moved rightmost)
Product:	Mageia	Reporter:	Morgan Leijström <fri>
Component:	RPM Packages	Assignee:	KDE maintainers <kde>
Status:	NEW ---	QA Contact:
Severity:	normal
Priority:	Normal	CC:	mageia, marja11
Version:	Cauldron
Target Milestone:	---
Hardware:	All
OS:	Linux
URL:	https://bugs.kde.org/show_bug.cgi?id=373897
Whiteboard:
Source RPM:	gwenview-16.11.90-1.mga6.src.rpm	CVE:
Status comment:
Attachments:	original file scanned from a newspaper rotated in gwenview and saved

Description Morgan Leijström 2016-12-19 18:02:44 CET

Also entered upstream:
https://bugs.kde.org/show_bug.cgi?id=373897

Steps to Reproduce:
1. open attached original.jpg in gwenview
2. rotate right
3. save.
 -> You will see a result like result.jpg when opening it anew in gwenview or another viewer.

Original.jpg is original file scanned from a newspaper.
Rotated.jpg is saved from gwenview after having rotated original right.

You see the leftmost text character column is chopped off, and then added rightmost (and it looks like that part it is mirrored)

Comment 1 Morgan Leijström 2016-12-19 18:04:36 CET

Created attachment 8802 [details]
original file scanned from a newspaper

Comment 2 Morgan Leijström 2016-12-19 18:05:15 CET

Created attachment 8803 [details]
rotated in gwenview and saved

Comment 3 Morgan Leijström 2016-12-19 18:07:05 CET

( This is on an current, continously updating cauldron originally upgraded from mga5 before summer. )

Marja Van Waes 2016-12-19 19:41:13 CET

CC: (none) => marja11
Assignee: bugsquad => kde

Comment 4 Nicolas Lécureuil 2017-03-18 08:10:39 CET

is it still valid on current cauldron ?

CC: (none) => mageia

Comment 5 Morgan Leijström 2017-04-02 15:20:10 CEST

Still valid.

Can you test if it works for you: download https://bugs.mageia.org/attachment.cgi?id=8803, open with gwenview, rotate right using the button, save, close, open and see the error: at right edge are mirror of characters that should be at left edge.

If you can repeat, please post confirmative upstream.

Comment 6 Morgan Leijström 2017-06-01 15:42:30 CEST

Still valid. Also tested on a fresh Mageia 6 install this morning, now on i586.
Kolourpaint and Showfoto handles the rotation OK.

Comment 7 Morgan Leijström 2020-11-09 11:22:29 CET

After four years: confirmed upstream.  There is hope...  :)