# HG changeset patch # User Guillaume Sicard # Date 1265082919 18000 # Node ID 6d432a5010a29d475b52e3601f9320849a0c8486 # Parent 4d4248f7e2fbb24751cb28d2afc72ab0806fcf94 Modified font generator script : module creation. Not fully compliant with testmod.py though (transformation != generation) diff -r 4d4248f7e2fb -r 6d432a5010a2 transformations/ttf2jpg.py --- a/transformations/ttf2jpg.py Mon Feb 01 19:08:32 2010 -0500 +++ b/transformations/ttf2jpg.py Mon Feb 01 22:55:19 2010 -0500 @@ -1,78 +1,109 @@ -#!/usr/bin/python -# -*- coding: iso-8859-1 -*- -# ttf2jpg.py converts font files to jpg images -# download fonts from http://www.dafont.com +#!/usr/bin/python +# -*- coding: iso-8859-1 -*- -################## -# import libraries -################## +''' + Implementation of font image generator + download fonts from http://www.dafont.com for exemple + + Author: Guillaume Sicard +''' import sys, os, fnmatch -import Image -import ImageFont, ImageDraw - -########### -# variables -########### -# don't forget the "/" at the end of directories +import Image, ImageFont, ImageDraw, numpy -font_dir = "/usr/share/fonts/truetype/ttf-liberation/" -image_dir = "./images/" -pattern = "*.ttf" +class ttf2jpg(): + def __init__(self, font_file = ''): + self.w = 32 + self.h = 32 + self.font_dir = '/usr/share/fonts/truetype/ttf-liberation/' + self.font_file = font_file + self.image_dir = './images/' + self.pattern = '*.ttf' -########### -# functions -########### + # get font name + def get_settings_names(self): + return [self.font_file] -# save a picture of "text" with font "font_file" -def write_image(text, font_file): -# print "Writing \"" + text + "\" with " + font_file + "..." - sys.stdout.write(".") - sys.stdout.flush() + # save an image + def save_image(self,array, filename = ''): + image = (array * 255.0).astype('int') + image = Image.fromarray(image).convert('L') + if (filename != ''): + image.save(filename) + else: + image.show() - # create a 32x32 white picture, and a drawing space - image = Image.new("L", (32, 32), "White") - draw = ImageDraw.Draw(image) + # return a picture array of "text" with font "font_file" + def create_image(self, text): + # create a w x h black picture, and a drawing space + image = Image.new('L', (self.w, self.h), 'Black') + draw = ImageDraw.Draw(image) - # load the font with the right size - font = ImageFont.truetype(font_dir + font_file, 28) - w,h = draw.textsize(text, font=font) + # load the font with the right size + font = ImageFont.truetype(self.font_file, 28) + d_w,d_h = draw.textsize(text, font=font) - # write text and aligns it - draw.text(((32 - w) / 2, ((32 - h) / 2)), text, font=font) + # write text and aligns it + draw.text(((32 - d_w) / 2, ((32 - d_h) / 2)), text, font=font, fill='White') + + image = numpy.asarray(image) + image = (image / 255.0).astype(numpy.float32) + + return image - # show image, xv must be installed - #image.show() - - # save the picture - image.save(image_dir + text + "-" + font_file + ".jpg") + # write all the letters and numbers into pictures + def process_font(self): + for i in range(0, 26): + image = self.create_image(chr(ord('a') + i)) + self.save_image(image, self.image_dir + chr(ord('a') + i) + '-' + os.path.basename(self.font_file) + '.jpg') + sys.stdout.write('.') + sys.stdout.flush() + for i in range(0, 26): + image = self.create_image(chr(ord('A') + i)) + self.save_image(image, self.image_dir + chr(ord('A') + i) + '-' + os.path.basename(self.font_file) + '.jpg') + sys.stdout.write('.') + sys.stdout.flush() + for i in range(0, 10): + image = self.create_image(chr(ord('0') + i)) + self.save_image(image, self.image_dir + chr(ord('0') + i) + '-' + os.path.basename(self.font_file) + '.jpg') + sys.stdout.write('.') + sys.stdout.flush() + return (26 + 26 + 10) -# write all the letters and numbers into pictures -def process_font(font_file): - for i in range(0, 26): - write_image(chr(ord('a') + i), font_file) - for i in range(0, 26): - write_image(chr(ord('A') + i), font_file) - for i in range(0, 10): - write_image(chr(ord('0') + i), font_file) + # generate the character from the font_file and returns a numpy array + def generate_image(self, character, font_file = ''): + if (font_file != ''): + self.font_file = font_file + + return self.create_image(character) -###### -# main -###### + # test method, create character images for all fonts in "font_dir" + def test(self): + import time -# look for ttf files -files = os.listdir(font_dir) -font_files = fnmatch.filter(files, pattern) + # look for ttf files + files = os.listdir(self.font_dir) + font_files = fnmatch.filter(files, self.pattern) + + # create "image_dir" if it doesn't exist + if not os.path.isdir(self.image_dir): + os.mkdir(self.image_dir) + + sys.stdout.write( str(len(font_files)) + ' fonts found, generating jpg images in folder ' + self.image_dir ) + sys.stdout.flush() -# create "image_dir" if it doesn't exist -if not os.path.isdir(image_dir): - os.mkdir(image_dir) + # main loop + t = time.time() + n = 0 -sys.stdout.write( str(len(font_files)) + " fonts found, generating jpg images in folder " + image_dir ) -sys.stdout.flush() + for font_file in font_files: + self.font_file = self.font_dir + font_file + n += self.process_font() + t = time.time() - t -# main loop -for font_file in font_files: - process_font(font_file) + sys.stdout.write('\nall done!\n' + str(n) + ' images generated in ' + str(t) + 's (average : ' + str(1000 * t / n) + ' ms/im)\n') -sys.stdout.write("\nall done!\n") \ No newline at end of file +if __name__ == '__main__': + + myttf2jpg = ttf2jpg() + myttf2jpg.test()