Focus peaking is a manual focus assist feature that shows the area of focus by detecting contrast on edges. The Sony NEX series is well known for its good implementation of this feature. While checking focus on many images in light table, it would be a nice feature if there was an overlay showing areas in focus. An example is to be found in this discussion: http://www.luminous-landscape.com/forum/index.php?PHPSESSID=cc48e10b2da22d51629b5ef7bd82ce2c&topic=56246.msg457442#msg457442 Quick research: The Magic Lantern firmware for Canon cameras apparently has this feature. Looking at the sources, it is probably located in src/zebra.c located here: https://bitbucket.org/hudson/magic-lantern/src Reproducible: Always
Seems similar to this: http://www.darktable.org/2013/11/determining-focus-in-lighttable/
*** Bug 319160 has been marked as a duplicate of this bug. ***
*** Bug 300679 has been marked as a duplicate of this bug. ***
Thank you for the bug report. As this report hasn't seen any changes in 5 years or more, we ask if you can please confirm that the issue still persists. If this bug is no longer persisting or relevant please change the status to resolved.
In digiKam 7.4.0, a first version of Focus Area Viewer is available in Light Table. It's not yet perfect, but it's a first start. https://imgur.com/jbNbE1W