https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=23963
Bug ID: 23963
Summary: Visible reduction in image quality
Change sponsored?: ---
Product: Koha
Version: master
Hardware: All
OS: All
Status: NEW
Severity: major
Priority: P5 - low
Component: Tools
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
CC: [email protected],
[email protected],
[email protected], [email protected],
[email protected], [email protected],
[email protected]
Depends on: 21987, 22988
+++ This bug was initially created as a clone of Bug #22988 +++
RM NOTE: This bug is a placeholder to note that we are reverting bug 21987
whilst we work on the main issue for a longer term resolution to bug 22988 in
that bug.
I have a library that is noticing a visible reduction in image and thumbnail
quality after upgrading from 18.11.03 to 18.11.05. This could be a regression
from bug 21987.
They have a lot of scanned black and white covers. The largest text in the
thumbnails used to be readable, but after the upgrade, it is not. Their
scanning process has not changed, so the original image that they upload should
be of the same quality as before.
Old, good image:
http://bibliotek.dis-danmark.dk:8080/cgi-bin/koha/catalogue/image.pl?imagenumber=4332
http://bibliotek.dis-danmark.dk:8080/cgi-bin/koha/catalogue/image.pl?imagenumber=4332&thumbnail=1
New, not so good, image:
http://bibliotek.dis-danmark.dk:8080/cgi-bin/koha/catalogue/image.pl?imagenumber=4463
http://bibliotek.dis-danmark.dk:8080/cgi-bin/koha/catalogue/image.pl?imagenumber=4463&thumbnail=1
Did we reduce the quality a bit too much?
Referenced Bugs:
https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=21987
[Bug 21987] Local cover 'thumbnail' size is bigger than 'imagefile' size in
biblioimages table
https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=22988
[Bug 22988] Visible reduction in image quality
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