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Digital photography and free software Asie Photos

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Digital photography and free software Asie Photos Powered By Docstoc
					             Digital photography
              and free software
   
   




                          Asie Photos
                   French Cultural Center of Hanoi 
                           ( June 19th   2010)

       World meetings of free software at Bordeaux (France)
                           (July 7th   2010)
       Attention


The following work was made 
with GNU / Linux  UBUNTU.   
And the photos were taken with  
     NIKON D90 camera.
                            Index

   Digital picture in GNU/Linux environment. 
   Capture.
   Software for capture.
   Automatic detection.
   No automatic detection.
   Organization of Photo Albums.
   Essential information on the photo.
                          Index

   From the amateur to the professional
   How manage your photos to transfert them on the WEB.
   The tips and  URL to help you.
   Downloading from the Web (ArtLibre et CopyLeft).
   Other non free softwares but for  Linux.
   Acknowledgements
     Linux Environment


One operating system GNU / Linux
    The distribution's name is UBUNTU 
          version 9.10 ­ the Koala Karmic 
          issued in  October 2009
          graphic environment 
          GNOME  version 2.28.1
      The Capture




     Which camera ?

The capture of the native files .
                       The capture




 After switching on the camera, an icon should appear on the screen showing the camera
detected as an USB key. If F-spot is installed it will automatically launches the capture.
 The software for capture.




Softwares to visualize photos :

           F-Spot
           Camera
           Digikam
           Lphoto
The Linux   operating system

     On Ubuntu system (Jaunty ou karmic)
            Detection

                Exception

               Your camera
            Is not recognized.

             Open a terminal
                  Click in
   Applications / accessories / terminal
(like the MSDOS command under MS Windows)
  Case of non automatic detection


                 Some useful commands

                            tail
                           dmesg
                           mkdir

  To download photos, use the following command:

                     gphoto2 --get-all-files

More commands on : http://www.asiephotos.com/spip.php?article12
In case of non automatic detection
  In case of non automatic detection

To launch the already installed software
In case of non automatic detection




                    Click on
                 Import / camera

     With Digikam you can capture your photos
                  from the USB key
             or from a distant computer
Organization




     Backup

 Useful information
     Backup your Photos


                Important
              save your photos.
             The original photos.
use another hard-disk or another support like a
   CD or a DVD of large storage capacity.
  Organization of your albums




               To manage your photos albums,
           click on Shortcuts / Personal File
  to see the Directory ”Photos” or " My albums " or
"Images", following the Linux distribution or the used
                       software.
Organization of the Albums



            Range of Albums

   1 Album = 1 file for High resolution
            + 1 file for WEB
Organization of the Albums




                For Web

   Need to reduce the size and quality
Organization of the albums



     Photos presented on internet.

   Priority on the download speed.
  Maximum size of the photo 1024X768
     Quality reduced down to 50 %
The essential information




      On the camera used

       The IT environment.

 The storage and its management
              The essential information


                                              Format files

    RESOLUTION             JPEG           JPEG          RAW        RAW +        TIFF
                           Normal          Fine                    JPEG
    12 Megapixels            3Mo            6Mo         18Mo        24Mo       36Mo

    8 Megapixels             2Mo            4Mo         12Mo        16Mo       24Mo


    4 Megapixels             1Mo            2Mo          6Mo        8Mo        12Mo


It is necessary to select the appropriate image resolution and file format in accordance
to the final use of photography: Web, printing, constraints from a job's order.
            The essential information

The RAW format is often the proprietary format of a manufacturer.
Examples:
                Manufacturer        Extension
                Canon               .CR2
                Canon Pro           .CRW
                Fuji                .RAF
                Konika Minolta      .MRV
                Leica               .RAW
                Nikon               .NEF
                Pentax              .PEF
                Sigma               .X3F
                Sony                .SRF
Learn about the digital photo




 The format RAW in digital photography

                   =

The negative film in argentic photography
     The photo




From amateur to professional
     Software to show picture
           and retouch



The choice of the software of treatment of image
  is essential for exploiting the RAW format.

     A tool of retouch as GIMP requires
                 good training.
  Working on a RAW picture




                F - spot
software to visualize the RAW pictures

             Rawstudio
balancing and retouching the pictures.
F-Spot
Rawstudio
         Working a RAW picture

3 essential criterions:
                       Exposure
                        Contrast
                  Balance of the whites

                 JPEG-Fine or RAW ??

  The JPEG format generates a standard automatic
    treatment of the picture with loss of information.
The RAW format is the raw file of the picture without any
          treatment nor loss of information.
Working a RAW picture
       Weight and many measures



The raw photography has specific characteristics :

            a file format : JPEG, RAW
        a dimension in pixels : 4288x2848
  a variable file weight (following the resolution)
               After RAW



After obtaining your photo in your desired format
              you can use retouch
                       with
                      GIMP
GIMP
      GIMP



http://docs.gimp.org/fr/

http://docs.gimp.org/en/
   Working photos for
  publishing on the WEB


       Don't forget the internet rules

 (1) – Working photos in automatic mode

(2) – Working photos with the command line
Transmission of photos




           Sending by e-mail

   On-line presentation (photo gallery)
Transmission of photos


    Resize the images with :
            Gthumb
            Digikam

           Or in
       Command mode
Case of Digikam
Transmission of photos(3)
           In command mode (script bash)
#!/bin/bash
N=10000
# You work in directory ALBUM
cd /home/francis/photos/ALBUM
# you create new directory
mkdir 1024
# with the command ls take care of file suffixes jpg JPG JPEG
# and modify in consequence
ls *.jpg | while read f
do
          N=`expr $N + 1 `
         NOM=ethno${N:1}.jpg
convert -quality 50 -resize 1024X768 $f /home/francis/photos/ALBUM/1024/$NOM
done
      Script bash in terminal


The script is created with a text editor as Vim

          The name of the script is
             convert_image.sh

               Run in a terminal
             . / convert_image.sh
    What free softwares available for
                photos ?
For visualization:
      GimageView

Managing photos :
    F-spot
    Gthumb
    RawTherapee

For the retouch:
      Hugin (creation of panorama)
      Rawstudio (retouch photo in raw format)
      UFRaw (retouch photo in raw format)
      Gimp (the free software most commonly used).
How to create a Web site


A lot of software implements photo albums.

                Digikam
               BlueMarine

Digikam can export your album to Facebook.
   To create your photo albums
     at home or on a Web site



Digikam allows you to create your album which is
             displayed on screen

           and also allows to export
              to another support.
To create photo albums
at home or on a Web site
   There are a multitude of free products :

  Coppermine http://coppermine-gallery.net
        Piwigo http://fr.piwigo.org
    Zenphoto http://www.zenphoto.org

These softwares are specialized in web publishing of
                  photo albums

          Details on Framasoft web site :

  http://www.framasoft.net/rubrique387.html
To create photos album at
  home or on a Web site

        Other alternative products :

      Picasa : http://picasa.google.fr
      Pbase : http://www.pbase.com/
         Flickr : http://flickr.com/

On these sites photos can be commented on.
Your photo albums on a WEB site

              Asie Photos has chosen
                       SPIP
                  http://www.spip.net/

                 Digikam (example)
http://www.asiephotos.com/albums/vieRueHanoi/index.html

                      Hosting
            http://hebergement-canada.net/

              Domain name registering
                 http://www.gandi.net/
        Tips and URL

One of the best sites for photo and image :
        http://www.linuxgraphic.org/

   And the one of the Linux distribution
         http://www.ubuntu-fr.org/

   Also some forums for photographers
      http://www.nikonpassion.com/
        http://www.virusphoto.com/
       http://www.chassimages.com
           Tips and URL


          The research on internet
          In your favorite browser.

The majority of the softwares presented above
     have versions that can be used with
       MS Windows and Mac Intosh.
Downloading from the WEB


   Albums on the site of Asie Photos are under
license Copyleft and Free Art, all the references
           can be found on the site :

                              http://artlibre.org/
  With the License Free Art, the authorization is given to copy, to distribute and to modify
  freely the works in the respect of the rights of the author.
   Non free softwares
     but for Linux

               LightZone
  http://www.lightcrafts.com/lightzone/

                   Bibble
          http://bibblelabs.com/

And another software partialy license free
                Jalbum
           http://jalbum.net/
         Acknowledgements
   I thank you, and hope you will check out
                    my site
             www.asiephotos.com

                          Freely yours,
                         Francis DUFEIL


 This document was created using free softwares downloadable freely
                                at
           http://www.asiephotos.com/spip.php?article21

 I would like to thank Pascal ROCHE and Fabrice CLERC for their precious help.
I don't forget Vu Do Quynh and Stephanie Desormes for the help has translation.

				
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