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[Bug 596327] Re: Digikam imports images taken with Nikon Cameras extremely slow, takes a large amount of time processing exif data

To: registry@xxxxxxxxxxxxxxxxxxx
From: Chris Samuel <chris@xxxxxxxxxxx>
Date: Fri, 01 Oct 2010 12:22:38 -0000
Reply-to: Bug 596327 <596327@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

This bug is still present in Maverick (which will be 10.10).

Manipulating an image from a Nikon D90 is over 100 times slower than
manipulating the *EXACT* same image with the camera maker set to
"NoName" in its metadata - and reverting it back to "NIKON CORPORATION"
makes it go over 100 times slower again.

PLEASE PLEASE PLEASE CAN WE GET AN UPDATE ON THIS BUG!

Here's the demonstration of the slowdown:

root@quad:~# apt-cache policy exiv2
exiv2:
  Installed: 0.19-3
  Candidate: 0.19-3
  Version table:
 *** 0.19-3 0
        500 http://mirror.internode.on.net/pub/ubuntu/ubuntu/ maverick/main amd64 Packages
        100 /var/lib/dpkg/status

chris@quad:/tmp$ exiv2 DSC_0147.JPG 
File name       : DSC_0147.JPG
File size       : 4084876 Bytes
MIME type       : image/jpeg
Image size      : 4288 x 2848
Camera make     : NIKON CORPORATION
Camera model    : NIKON D90
Image timestamp : 2010:09:18 15:53:45
Image number    : 
Exposure time   : 1/15 s
Aperture        : F5
Exposure bias   : 0 EV
Flash           : No flash
Flash bias      : 
Focal length    : 75.0 mm (35mm equivalent: 112.0 mm)
Subject distance: 
ISO speed       : 3200
Exposure mode   : Auto
Metering mode   : Multi-segment
Macro mode      : 
Image quality   : FINE   
Exif resolution : 4288 x 2848
White balance   : AUTO        
Thumbnail       : image/jpeg, 9051 Bytes
Copyright       : 
Exif comment    :                                     

chris@quad:/tmp$ time exiv2 -M'set Exif.Image.Make NoName' DSC_0147.JPG

real    0m4.323s
user    0m4.270s
sys     0m0.020s

chris@quad:/tmp$ time exiv2 -M'set Exif.Image.Make NIKON CORPORATION'
DSC_0147.JPG

real    0m0.030s
user    0m0.000s
sys     0m0.020s

chris@quad:/tmp$ time exiv2 -M'set Exif.Image.Make NoName' DSC_0147.JPG
real    0m6.201s
user    0m6.170s
sys     0m0.020s

-- 
Digikam imports images taken with Nikon Cameras extremely slow, takes a large amount of time processing exif data
https://bugs.launchpad.net/bugs/596327
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