Bug 94242 - Rotation seriously degrades any image type
Summary: Rotation seriously degrades any image type
Status: RESOLVED WORKSFORME
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: filters and storage (show other bugs)
Version:
(earliest affected)
4.1.0.4 release
Hardware: All All
: medium minor
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: implementationError
Depends on:
Blocks:
 
Reported: 2015-09-15 11:18 UTC by Uwe Dippel
Modified: 2022-10-03 11:38 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:


Attachments
Sample image (205.17 KB, image/x-eps)
2015-09-15 11:18 UTC, Uwe Dippel
Details
Image after insertion (47.55 KB, image/png)
2015-09-15 11:19 UTC, Uwe Dippel
Details
Image after 90° rotation (27.14 KB, image/png)
2015-09-15 11:21 UTC, Uwe Dippel
Details

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Description Uwe Dippel 2015-09-15 11:18:35 UTC
Created attachment 118737 [details]
Sample image

'Rotation' as such has been introduced recently.
I find that my images are seriously degraded when I rotate them, I tried .eps, and also the same image as .png.
When I insert an image it displays and prints nicely, after rotation it is all washed up. And it has nothing to do with the resolution or such, because rotating right and rotating left (into original position) leaves the same bad result.
I'll attach the sample image, and I'll attach the screenshots of the freshly imported image, and the image after rotation.
Comment 1 Uwe Dippel 2015-09-15 11:19:33 UTC
Created attachment 118738 [details]
Image after insertion
Comment 2 Uwe Dippel 2015-09-15 11:21:24 UTC
Created attachment 118739 [details]
Image after 90° rotation
Comment 3 Buovjaga 2015-09-19 16:33:00 UTC
I do not reproduce such a hideous quality drop (tested with the png).

Win 7 Pro 64-bit, Version: 5.0.1.2 (32-bit)
Build ID: 81898c9f5c0d43f3473ba111d7b351050be20261
Locale: fi-FI (fi_FI)

Version: 5.1.0.0.alpha1+ (x64)
Build ID: 9ce08dcc2e32c5554ddf71b79173f8854e0568ad
TinderBox: Win-x86_64@62-TDF, Branch:MASTER, Time: 2015-09-17_21:43:51
Locale: en-US (fi_FI)
Comment 4 MM 2015-10-08 20:21:56 UTC
Confirmed with v5.0.2.2 under mint 17.2 x64.

Rotating the eps file (not the png one) makes the image look bad.
Comment 5 Uwe Dippel 2015-10-08 20:51:03 UTC
... thanks. 
And how do you think I made that screenshot? Okay, I could have pixelized the image out of boredom to invent a bug. 
But I didn't. I have better things to do with my time. Really.
The screenshot is what I got as result from the rotation of that png file. It is Kubuntu 64, LibreOffice downloaded as the .deb files and installed.
Comment 6 Buovjaga 2015-10-09 05:24:35 UTC
(In reply to Uwe Dippel from comment #5)
> ... thanks. 
> And how do you think I made that screenshot? Okay, I could have pixelized
> the image out of boredom to invent a bug. 
> But I didn't. I have better things to do with my time. Really.
> The screenshot is what I got as result from the rotation of that png file.
> It is Kubuntu 64, LibreOffice downloaded as the .deb files and installed.

All reports have to be confirmed by someone else.
Comment 7 Aron Budea 2016-09-24 22:44:30 UTC
In Windows the inserted image is completely wrong, a rectangle with this text:
"Title:NimbusSa
Creator:Qt 3.3.
CreationDate:T"
Comment 8 Xisco Faulí 2017-09-29 08:48:31 UTC Comment hidden (obsolete)
Comment 9 Uwe Dippel 2017-09-29 10:13:42 UTC
On kubuntu 16.04 and Libreoffice 5.3.6.1 the bug is still present for the .eps.

I didn't try the .png, but since insertion of that original image (as eps) into a new text document and subsequent rotation degrade the image horribly, this bug still exists.
Comment 10 QA Administrators 2018-09-30 02:47:27 UTC Comment hidden (obsolete)
Comment 11 QA Administrators 2020-09-30 03:59:19 UTC Comment hidden (obsolete)
Comment 12 QA Administrators 2022-10-01 03:43:32 UTC Comment hidden (obsolete)
Comment 13 Uwe Dippel 2022-10-03 10:08:35 UTC
I tried my test case here, in 7.3.6, and the problems is gone.

Therefore I set the Status to Resolved.