Project

General

Profile

Bug #12189

16 bit PPM files look like pure noise

Added by Tobias Jakobs about 1 month ago. Updated 14 days ago.

Status:
Fixed
Priority:
Low
Assignee:
-
Category:
General
Target version:
-
Start date:
05/08/2018
Due date:
% Done:

100%

Affected Version:
2.4.3
System:
Ubuntu
bitness:
64-bit
hardware architecture:
amd64/x86

Description

16 bit PPM files look like pure noise.
I used the gpr_tools from here: https://github.com/gopro/gpr to create the PPM file from an GoPro Raw image.

GOPR0020.PPM (4.29 MB) Tobias Jakobs, 05/08/2018 12:22 AM

Bildschirmfoto vom 2018-05-07 23-24-32.png - Screenshot of the image in dt (2.58 MB) Tobias Jakobs, 05/08/2018 12:25 AM

History

#1 Updated by Roman Lebedev about 1 month ago

Most likely because that "PPM" is still-mosaiced sensor dump, just out of gopro raw container.
It would be better to convert it to dng proper.

#2 Updated by Tobias Jakobs about 1 month ago

1. It opens fine in Gimp 2.10. (Just 2x green, but that's easy to fix.)
2. Yes the DNG works fine.

#3 Updated by Roman Lebedev about 1 month ago

Tobias Jakobs wrote:

1. It opens fine in Gimp 2.10. (Just 2x green, but that's easy to fix.)

The Bayer CFA pattern is Red Green Green Blue, so if there is 2x green, if anything, that doesn't disprove my theory :)

2. Yes the DNG works fine.

#4 Updated by Tobias Ellinghaus 14 days ago

  • % Done changed from 0 to 100
  • Status changed from New to Fixed

Also available in: Atom PDF