[Digikam-devel] extragear/graphics/digikam/digikam

Gilles Caulier caulier.gilles at gmail.com
Fri Jun 12 15:32:24 CEST 2009


And again. this time, PGF quality = 5 :

rebuild time duration : 11mn 31s
database file size :

[gilles at pc-caulier photos]$ ls -al *.db
-rw-r--r-- 1 gilles gilles  1398784 2009-06-12 15:13 digikam4.db
-rw-r--r-- 1 gilles gilles 23817216 2009-06-12 15:25 thumbnails-digikam.db
[gilles at pc-caulier photos]$

DB file size is reduced from 35 MB to 23 MB...

Now we have same compression ratio than JPEG, bu t i can see visible
artifacts (a little bit).

Somebody can confirm ?

Gilles


2009/6/12 Gilles Caulier <caulier.gilles at gmail.com>:
> On this same computer, i just adjusted PGF quality from 3 to 4.
>
> rebuild time duration : 11mn 16s
> database file size :
>
> [gilles at pc-caulier photos]$ ls -al *.db
> -rw-r--r-- 1 gilles gilles  1398784 2009-06-12 14:37 digikam4.db
> -rw-r--r-- 1 gilles gilles 35644416 2009-06-12 14:49 thumbnails-digikam.db
> [gilles at pc-caulier photos]$
>
> DB file size is reduced from 55 MB to 35 MB...
>
> Gilles Caulier
>
>
>
> 2009/6/12 Gilles Caulier <caulier.gilles at gmail.com>:
>> First feedback to compare freedesktop method based on PNG and Thumb DB
>> based on PGF.
>>
>> Here, i use Tools/Rebuild thumbnails/All dialog. See below the results :
>>
>> Computer : PIV 3Ghz, 1.5MB ram.
>>
>> Collections :
>>
>> digiKam version 1.0.0-beta2 (rev.: 979154)
>> JP2k: 21
>> JPG: 1818
>> MOV: 3
>> PNG: 363
>> PPM: 3
>> RAW-CR2: 8
>> RAW-CRW: 9
>> RAW-DNG: 1
>> RAW-MRW: 150
>> RAW-NEF: 9
>> RAW-ORF: 2
>> RAW-RAF: 2
>> RAW-RAW: 1
>> RAW-RW2: 1
>> RAW-X3F: 1
>> TIFF: 82
>> WMF: 1
>> XCF: 3
>> Total Items: 2478
>>
>> * Freedesktop method :
>> -----------------------------
>>
>> rebuild time duration : 16mn 23s
>> cache size :
>>
>> [gilles .thumbnails]$ pwd
>> /home/gilles/.thumbnails
>> [gilles .thumbnails]$ du
>> 189M    ./large
>> 0       ./normal
>> 189M    .
>> [gilles .thumbnails]$
>>
>> * Thumbs database method :
>> -----------------------------------
>>
>> rebuild time duration : 12mn 01s
>> database file size :
>>
>> [gilles at pc-caulier photos]$ pwd
>> /mnt/data/photos
>> [gilles at pc-caulier photos]$ ls -al *.db
>> -rw-r--r-- 1 gilles gilles  1398784 2009-06-12 08:46 digikam4.db
>> -rw-r--r-- 1 gilles gilles 55004160 2009-06-12 08:59 thumbnails-digikam.db
>> [gilles at pc-caulier photos]$
>>
>> Gilles Caulier
>>
>


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