Actions
Bug #2059
openredux display quality
Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
09/21/2012
Due date:
% Done:
0%
Estimated time:
Affected Version:
Appion/Leginon 2.1.0
Show in known bugs:
No
Workaround:
Description
consolidating several similar issues...
Images generated by redux do not have the same quality as phpmrc
A number of reasons for this:
- order of operations: whether contrast scaling is done before or after resizing the image makes a difference. weather resizing is done before or after the fft makes a difference
- method of resizing the image makes a difference. phpmrc did binning, which has the desired side effect of low pass filtering. redux does both resampling using scipy and binning.
- phpmrc did a mysterious low pass filtering which could be set to default, smooth1, smooth2, smooth3. Need to reproduce that, particularly the default, since that was probably the only one ever used.
- users need good default settings and online help to learn how to adjust the display using redux (adjust.php needs overhaul)
Updated by Gabriel Lander almost 12 years ago
This can be fixed by setting the std to 5 by default instead of 3 in viewer.inc:
$this->autoscale = "s;5";
Updated by Jim Pulokas almost 12 years ago
default contrast setting (3 -> 5) has been committed in r17132
Updated by Anchi Cheng almost 12 years ago
r17199 change more defaults in 2.2-redux. These affect the makejpg.php caching and download images.
Actions