HDR fail on patterned high contrast image
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Canonical System Image |
Fix Released
|
High
|
Bill Filler | ||
camera-app (Ubuntu) |
Fix Released
|
High
|
Florian Boucault |
Bug Description
Meizu MX4 Ubuntu Touch rc-proposed r178
camera app v. 3.0.0.604
Background: I was taking general forest shots successfully and then tried a close-up of a frost dusted spider web. Capture animation displayed but nothing got shown in Photo Roll aside of the Ubuntu spinner. General shots still succeeded. This happened twice in field, second time with frost dusted, repetitively patterned moss. This was version v3.0.0.595.
Reproduction: place black mosquito net over back-lighted opaque perspex and photograph from 15-20 cm distance (see attachment), with HDR function enabled and phone held steady.
Expected outcome: image captured.
Actual outcome: no image shown in Photo Roll. .Jpeg image file is present in Pictures but corrupt (see attachment), even if viewed on PC. For me, this result is invariable with my test image setup.
It appears that regularly patterned, high contrast scenes cause the HDR routine to "choke". A few months back I saw this with HDR in a high contrast general scene without realising what caused it. Note, camera shake under HDR results in captured image.
With Camera v. 3.0.0.595, the issue would persist even with normal shots after the HDR one. With v. 3.0.0.604 disabling HDR allows image to be captured.
Changed in camera-app (Ubuntu): | |
importance: | Undecided → High |
Changed in canonical-devices-system-image: | |
status: | Confirmed → In Progress |
Changed in camera-app (Ubuntu): | |
status: | Confirmed → In Progress |
Changed in camera-app (Ubuntu): | |
assignee: | nobody → Florian Boucault (fboucault) |
Changed in canonical-devices-system-image: | |
status: | In Progress → Fix Committed |
Changed in camera-app (Ubuntu): | |
status: | In Progress → Fix Committed |
Changed in camera-app (Ubuntu): | |
status: | Fix Committed → Fix Released |
Changed in canonical-devices-system-image: | |
status: | Fix Committed → Fix Released |
Status changed to 'Confirmed' because the bug affects multiple users.