! /usr/local/bin/python
-*- coding: utf-8 -*- 
 
"""piwigo.py
 
Usefull for your Piwigo gallery (http://www.piwigo.org/).
 
./piwigo
 
    ./photos
        ./thumbnail/
        ./pwg_high/
            ./original_image01.jpg
            .
            .
            ./original_imageN.jpg
    ./piwigo.py
 
Resize images from /pwg_high (original images) directory in two size :
 
 - 128*128 pixels in ./piwigo/photos/thumbnail ;
 - 1024*768 pixels in ./piwigo/photos/ .
 
"""
 
__author__ = "Cedric Bonhomme"
__date__ = "$Date: 2009/03/22 $"
__copyright__ = "Copyright (c) 2009 Cedric Bonhomme"
__license__ = "GPL v3"
 
import re import os import Image
 
def search_files(motif, root_path):
 
    """Return a list of tuple (path, files).
 
    Search fo files containing 'motif' that
    aren't symbolic links.
    """
    result = []
    w = os.walk(root_path)
    for (path, dirs, files) in w:
        for f in files:
            if re.compile(motif).search(f):
                # if not a symbolic link
                if not os.path.islink(os.path.join(path, f)):
                    result.append((os.path.join(path, f), f))
    return result
 
images = search_files(".jpg", "./photos/pwg_high")
 
for image in images:
 
    im = Image.open(image[0])
 
    im_thumbnail = im.resize((128, 128), Image.ANTIALIAS)
    im_thumbnail.save("./photos/thumbnail/TN-" + image[1], quality = 100)
 
    im_slide = im.resize((1024, 768), Image.NEAREST)
    im_slide.save("./photos/" + image[1], quality = 100)
 
""" Filter options to resize the image :
 
    Use nearest neighbour :
        Image.NEAREST
    Linear interpolation in a 2x2 environment :
        Image.BILINEAR
    Cubic spline interpolation in a 4x4 environment :
        Image.BICUBIC
    Best down-sizing filter :
        Image.ANTIALIAS
 
"""

On peut facilement ajouter le transfert FTP du résultat dans le dossier distant qui va bien.

[cedric@localhost ~]$ convert 16-04-2008_0167.jpg -font Arial -pointsize 40 -draw "gravity south > fill black text 0,12 'Cédric Bonhomme' > fill white text 1,11 'Cédric Bonhomme' " wmark_text_drawn.jpg

convert picture.jpg -thumbnail 240 -bordercolor white -background black +polaroid picture-pola.png