[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Octave-bug-tracker] [bug #45662] Do not complain about being limited to
From: |
Orion Poplawski |
Subject: |
[Octave-bug-tracker] [bug #45662] Do not complain about being limited to 16 bits per pixel |
Date: |
Thu, 30 Jul 2015 22:27:22 +0000 |
User-agent: |
Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:39.0) Gecko/20100101 Firefox/39.0 |
URL:
<http://savannah.gnu.org/bugs/?45662>
Summary: Do not complain about being limited to 16 bits per
pixel
Project: GNU Octave
Submitted by: opoplawski
Submitted on: Thu 30 Jul 2015 10:27:21 PM GMT
Category: Libraries
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Other
Status: None
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: 4.0.0
Operating System: GNU/Linux
_______________________________________________________
Details:
>> I = imread("img006.jpg")
warning: your version of GraphicsMagick limits images to 16 bits per pixel
warning: called from
imformats>default_formats at line 256 column 11
imformats at line 79 column 3
imageIO at line 106 column 11
imread at line 106 column 30
yet http://wiki.octave.org/GraphicsMagick#Quantum_depth states:
Warning: Increasing quantum depth may have a dramatic increase in memory
usage. If you use QuantumDepth 32, all images will be read with that precision
even if they were saved with 8bit. This means that a 100MB 8bit image will
temporarily take 400MB memory, or more if the image was compressed and they
usually are, before Octave resizes it back down to 100MB. Because of this,
because 32 bit integers images are rare, and because GraphicsMagick does not
handle floating point, it's recommended to use QuantumDepth of 16.
If it is recommended, do not warn about it.
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?45662>
_______________________________________________
Message sent via/by Savannah
http://savannah.gnu.org/
- [Octave-bug-tracker] [bug #45662] Do not complain about being limited to 16 bits per pixel,
Orion Poplawski <=