Occasional dark image output with tone mapping

Question

Originally reported on Google Code with ID 1495

Describe the problem and how to reproduce it.
With the attached pp3 file, the below-linked raw shows bright in preview but very dark
in image output (links below), only when tone-mapping is enabled. When tone-mapping
is disabled, preview and output image match very closely (I can't tell the difference).

Symptoms similar to #1246, but cause seems different. Not all images do this, and I
even had one image where it did it once, then I restarted fresh and it worked ok.

Click on Preferences > About > Version and paste all that here.
Branch: default
Version: 4.0.9.83
Changeset: 974db885820c
Compiler: gcc 4.7.1
Processor: undefined
System: Linux
Bit depth: 64 bits
Gtkmm: V2.24.2
Build type: release
Build flags:  -march=native -fopenmp -O3 -DNDEBUG
Link flags:   -march=native
OpenMP support: ON
MMAP support: ON

Operating system (e.g. winXP-32bit, Ubuntu-11.10-64bit):
Debian testing (wheezy/sid) 64-bit, kernel 3.2.0-2-amd64

Original RAW: http://min.us/mbhgDhrqjh

Screenshot and output image: http://imgur.com/a/qTstm

Reported by frasermccrossan on 2012-07-17 01:53:20

• Attachment: p1000037.rw2.pp3

该提问来源于开源项目：Beep6581/RawTherapee

Answer 1

Tone mapping is known to have some issues (also crashed), however the developer creating
(and being the only one understanding it) it is not active currently unfortuntely..

Reported by oduis.com on 2012-07-17 05:25:00