touch-packages team mailing list archive

[Jean-Baptiste Lallement <jean-baptiste.lallement@xxxxxxxxxx>]

I can reproduce on arale rc-proposed 178. 
Open the photo in comment 1 on a PC with any image viewer, enable HDR on the arale and take a picture of the screen of the PC. The resulting picture is corrupted and after 3 shots the camera hangs.

** Changed in: canonical-devices-system-image
   Importance: Undecided => High

** Changed in: canonical-devices-system-image
       Status: New => Confirmed

** Changed in: canonical-devices-system-image
    Milestone: None => ww02-2016

** Changed in: canonical-devices-system-image
     Assignee: (unassigned) => Bill Filler (bfiller)

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to camera-app in Ubuntu.
https://bugs.launchpad.net/bugs/1519766

Title:
  HDR fail on patterned high contrast image

Status in Canonical System Image:
  Confirmed
Status in camera-app package in Ubuntu:
  Confirmed

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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1519766/+subscriptions