Bug 349730

Summary:	Illegible text in ksnapshot webp image
Product:	[Unmaintained] ksnapshot	Reporter:	teancum144 <spamfunnel144>
Component:	general	Assignee:	Aaron J. Seigo <aseigo>
Status:	RESOLVED FIXED
Severity:	normal	CC:	spamfunnel144
Priority:	NOR
Version First Reported In:	0.8.2
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:	http://commits.kde.org/kde-runtime/bc38ac531e2965f81625490cbb8e2394f6b86188	Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	.jpeg sample .png sample .webp sample

Description teancum144 2015-06-29 20:32:09 UTC

I took a snapshot of the same text three times using .jpeg, .png, and .webp. Only the .webp is illegible. I also reported this to the webp issue tracker and they referred me here. Here is a link to that bug report, which includes attached sample screenshots:
https://code.google.com/p/webp/issues/detail?id=252

I don't see a way to upload attachments as part of this bug report. 

Reproducible: Always

Steps to Reproduce:
1. Take a screenshot of text with ksnapshot in Fedora Linux
2. Select Save as
3. Select webp as the image type

Actual Results:  
Illegible text

Expected Results:  
legible text

Comment 1 teancum144 2015-06-29 20:33:20 UTC

Created attachment 93421 [details]
.jpeg sample

Comment 2 teancum144 2015-06-29 20:34:02 UTC

Created attachment 93422 [details]
.png sample

Comment 3 teancum144 2015-06-29 20:35:32 UTC

Created attachment 93423 [details]
.webp sample

Comment 4 Martin Koller 2016-09-05 19:05:21 UTC

Git commit bc38ac531e2965f81625490cbb8e2394f6b86188 by Martin Koller.
Committed on 05/09/2016 at 19:03.
Pushed by mkoller into branch 'Applications/16.08'.

Avoid quality being set to 0 and use default of 75

For some reason, set quality was called with -1, which was limited
to 0, the lowest quality.
Instead now, if a value < 0 is given, we still use the default of 75

M  +4    -2    kimgio/webp.cpp

http://commits.kde.org/kde-runtime/bc38ac531e2965f81625490cbb8e2394f6b86188