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comparison transformations/ttf2jpg.py @ 43:05145f4fb609

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Added : generation of random character with random font file from a specified folder
author Guillaume Sicard <guitch21@gmail.com>
date Wed, 03 Feb 2010 21:24:05 -0500
parents 6d432a5010a2
children 9c45e0071b52
comparison
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42:7f5133e1fd23 43:05145f4fb609
6 download fonts from http://www.dafont.com for exemple 6 download fonts from http://www.dafont.com for exemple
7 7
8 Author: Guillaume Sicard 8 Author: Guillaume Sicard
9 ''' 9 '''
10 10
11 import sys, os, fnmatch 11 import sys, os, fnmatch, random
12 import Image, ImageFont, ImageDraw, numpy 12 import Image, ImageFont, ImageDraw, numpy
13 13
14 class ttf2jpg(): 14 class ttf2jpg():
15 def __init__(self, font_file = ''): 15 def __init__(self, font_file = ''):
16 self.w = 32 16 self.w = 32
17 self.h = 32 17 self.h = 32
18 self.font_dir = '/usr/share/fonts/truetype/ttf-liberation/' 18 self.font_dir = '/usr/share/fonts/truetype/ttf-liberation/'
19 self.font_file = font_file 19 self.font_file = font_file
20 self.image_dir = './images/' 20 self.image_dir = './images/'
21 self.pattern = '*.ttf' 21 self.pattern = '*.ttf'
22 self.char_list = []
23 for i in range(0,26):
24 self.char_list.append(chr(ord('a') + i) )
25 for i in range(0,26):
26 self.char_list.append(chr(ord('A') + i) )
27 for i in range(0,10):
28 self.char_list.append(chr(ord('0') + i) )
22 29
23 # get font name 30 # get font name
24 def get_settings_names(self): 31 def get_settings_names(self):
25 return [self.font_file] 32 return [self.font_file]
26 33
30 image = Image.fromarray(image).convert('L') 37 image = Image.fromarray(image).convert('L')
31 if (filename != ''): 38 if (filename != ''):
32 image.save(filename) 39 image.save(filename)
33 else: 40 else:
34 image.show() 41 image.show()
42
43 # set a random font for character generation
44 def set_random_font(self):
45 files = os.listdir(self.font_dir)
46 font_files = fnmatch.filter(files, self.pattern)
47 i = random.randint(0, len(font_files) - 1)
48 self.font_file = self.font_dir + font_files[i]
35 49
36 # return a picture array of "text" with font "font_file" 50 # return a picture array of "text" with font "font_file"
37 def create_image(self, text): 51 def create_image(self, text):
38 # create a w x h black picture, and a drawing space 52 # create a w x h black picture, and a drawing space
39 image = Image.new('L', (self.w, self.h), 'Black') 53 image = Image.new('L', (self.w, self.h), 'Black')
51 65
52 return image 66 return image
53 67
54 # write all the letters and numbers into pictures 68 # write all the letters and numbers into pictures
55 def process_font(self): 69 def process_font(self):
56 for i in range(0, 26): 70 for i in range(0, len(self.char_list) ):
57 image = self.create_image(chr(ord('a') + i)) 71 image = self.create_image(self.char_list[i])
58 self.save_image(image, self.image_dir + chr(ord('a') + i) + '-' + os.path.basename(self.font_file) + '.jpg') 72 self.save_image(image, self.image_dir + self.char_list[i] + '-' + os.path.basename(self.font_file) + '.jpg')
59 sys.stdout.write('.') 73 sys.stdout.write('.')
60 sys.stdout.flush() 74 sys.stdout.flush()
61 for i in range(0, 26): 75 return (len(self.char_list))
62 image = self.create_image(chr(ord('A') + i))
63 self.save_image(image, self.image_dir + chr(ord('A') + i) + '-' + os.path.basename(self.font_file) + '.jpg')
64 sys.stdout.write('.')
65 sys.stdout.flush()
66 for i in range(0, 10):
67 image = self.create_image(chr(ord('0') + i))
68 self.save_image(image, self.image_dir + chr(ord('0') + i) + '-' + os.path.basename(self.font_file) + '.jpg')
69 sys.stdout.write('.')
70 sys.stdout.flush()
71 return (26 + 26 + 10)
72 76
73 # generate the character from the font_file and returns a numpy array 77 # generate the character from the font_file and returns a numpy array
74 def generate_image(self, character, font_file = ''): 78 def generate_image_from_char(self, character, font_file = ''):
75 if (font_file != ''): 79 if (font_file != ''):
76 self.font_file = font_file 80 self.font_file = font_file
77 81
78 return self.create_image(character) 82 return self.create_image(character)
79 83
80 # test method, create character images for all fonts in "font_dir" 84 # generate random character from random font file as a numpy array
85 def generate_image(self):
86 self.set_random_font()
87 i = random.randint(0, len(self.char_list) - 1)
88 return self.generate_image_from_char(self.char_list[i])
89
90 # test method, create character images for all fonts in "font_dir" in dir "image_dir"
81 def test(self): 91 def test(self):
82 import time 92 import time
83 93
84 # look for ttf files 94 # look for ttf files
85 files = os.listdir(self.font_dir) 95 files = os.listdir(self.font_dir)
104 sys.stdout.write('\nall done!\n' + str(n) + ' images generated in ' + str(t) + 's (average : ' + str(1000 * t / n) + ' ms/im)\n') 114 sys.stdout.write('\nall done!\n' + str(n) + ' images generated in ' + str(t) + 's (average : ' + str(1000 * t / n) + ' ms/im)\n')
105 115
106 if __name__ == '__main__': 116 if __name__ == '__main__':
107 117
108 myttf2jpg = ttf2jpg() 118 myttf2jpg = ttf2jpg()
109 myttf2jpg.test() 119 #myttf2jpg.test()
120 image = myttf2jpg.generate_image()
121 myttf2jpg.save_image(image, '')