From 2e76cf0f532ff89ffa58e5db264a14deb60db6da Mon Sep 17 00:00:00 2001 From: RaNaN Date: Mon, 10 Aug 2009 10:43:57 +0200 Subject: plugin fixes, core config functions --- captcha/captcha.py | 313 +++++++++++++++++++++++++++-------------------------- 1 file changed, 157 insertions(+), 156 deletions(-) (limited to 'captcha') diff --git a/captcha/captcha.py b/captcha/captcha.py index 5fa8bfc45..fbbf20fee 100644 --- a/captcha/captcha.py +++ b/captcha/captcha.py @@ -17,11 +17,12 @@ # along with this program; if not, see . # ### +import logging import subprocess import tempfile +import threading import Image -import threading class RunThread(threading.Thread): def __init__(self): @@ -47,7 +48,7 @@ class RunThread(threading.Thread): class OCR(object): def __init__(self): - pass + self.logger = logging.getLogger("log") def load_image(self, image): self.image = Image.open(image) @@ -71,207 +72,207 @@ class OCR(object): # "Error running: %s\n\n%s" % (command, errdata) # return outputdata - thread = RunThread() - result = thread.e(command, inputdata) - return result + thread = RunThread() + result = thread.e(command, inputdata) + return result - def run_gocr(self): - tmp = tempfile.NamedTemporaryFile(suffix=".jpg") - self.image.save(tmp) - self.result_captcha = self.run(['gocr', tmp.name]).replace("\n", "") +def run_gocr(self): + tmp = tempfile.NamedTemporaryFile(suffix=".jpg") + self.image.save(tmp) + self.result_captcha = self.run(['gocr', tmp.name]).replace("\n", "") - def run_tesser(self): - tmp = tempfile.NamedTemporaryFile(suffix=".tif") - tmpTxt = tempfile.NamedTemporaryFile(suffix=".txt") +def run_tesser(self): + tmp = tempfile.NamedTemporaryFile(suffix=".tif") + tmpTxt = tempfile.NamedTemporaryFile(suffix=".txt") - self.image.save(tmp.name, 'TIFF') - self.run(['tesseract', tmp.name, tmpTxt.name.replace(".txt", "")]) + self.image.save(tmp.name, 'TIFF') + self.run(['tesseract', tmp.name, tmpTxt.name.replace(".txt", "")]) - self.result_captcha = self.run(['cat', tmpTxt.name]).replace("\n", "") + self.result_captcha = self.run(['cat', tmpTxt.name]).replace("\n", "") - def get_captcha(self): - raise NotImplementedError +def get_captcha(self): + raise NotImplementedError - def to_greyscale(self): - if self.image.mode != 'L': - self.image = self.image.convert('L') +def to_greyscale(self): + if self.image.mode != 'L': + self.image = self.image.convert('L') - self.pixels = self.image.load() + self.pixels = self.image.load() - def eval_black_white(self, limit): - self.pixels = self.image.load() - w, h = self.image.size - for x in xrange(w): - for y in xrange(h): - if self.pixels[x, y] > limit: - self.pixels[x, y] = 255 - else: - self.pixels[x, y] = 0 +def eval_black_white(self, limit): + self.pixels = self.image.load() + w, h = self.image.size + for x in xrange(w): + for y in xrange(h): + if self.pixels[x, y] > limit: + self.pixels[x, y] = 255 + else: + self.pixels[x, y] = 0 - def clean(self, allowed): - pixels = self.pixels +def clean(self, allowed): + pixels = self.pixels - w, h = self.image.size + w, h = self.image.size - for x in xrange(w): - for y in xrange(h): - if pixels[x, y] == 255: continue - # no point in processing white pixels since we only want to remove black pixel - count = 0 - - try: - if pixels[x-1, y-1] != 255: count += 1 - if pixels[x-1, y] != 255: count += 1 - if pixels[x-1, y + 1] != 255: count += 1 - if pixels[x, y + 1] != 255: count += 1 - if pixels[x + 1, y + 1] != 255: count += 1 - if pixels[x + 1, y] != 255: count += 1 - if pixels[x + 1, y-1] != 255: count += 1 - if pixels[x, y-1] != 255: count += 1 - except: - pass - - # not enough neighbors are dark pixels so mark this pixel - # to be changed to white - if count < allowed: - pixels[x, y] = 1 - - # second pass: this time set all 1's to 255 (white) - for x in xrange(w): - for y in xrange(h): - if pixels[x, y] == 1: pixels[x, y] = 255 + for x in xrange(w): + for y in xrange(h): + if pixels[x, y] == 255: continue + # no point in processing white pixels since we only want to remove black pixel + count = 0 - self.pixels = pixels + try: + if pixels[x-1, y-1] != 255: count += 1 + if pixels[x-1, y] != 255: count += 1 + if pixels[x-1, y + 1] != 255: count += 1 + if pixels[x, y + 1] != 255: count += 1 + if pixels[x + 1, y + 1] != 255: count += 1 + if pixels[x + 1, y] != 255: count += 1 + if pixels[x + 1, y-1] != 255: count += 1 + if pixels[x, y-1] != 255: count += 1 + except: + pass - def derotate_by_average(self): - """rotate by checking each angle and guess most suitable""" + # not enough neighbors are dark pixels so mark this pixel + # to be changed to white + if count < allowed: + pixels[x, y] = 1 - w, h = self.image.size - pixels = self.pixels + # second pass: this time set all 1's to 255 (white) + for x in xrange(w): + for y in xrange(h): + if pixels[x, y] == 1: pixels[x, y] = 255 - for x in xrange(w): - for y in xrange(h): - if pixels[x, y] == 0: - pixels[x, y] = 155 + self.pixels = pixels + +def derotate_by_average(self): + """rotate by checking each angle and guess most suitable""" - highest = {} - counts = {} + w, h = self.image.size + pixels = self.pixels - for angle in range(-45, 45): + for x in xrange(w): + for y in xrange(h): + if pixels[x, y] == 0: + pixels[x, y] = 155 - tmpimage = self.image.rotate(angle) + highest = {} + counts = {} + + for angle in range(-45, 45): + + tmpimage = self.image.rotate(angle) - pixels = tmpimage.load() + pixels = tmpimage.load() - w, h = self.image.size + w, h = self.image.size - for x in xrange(w): - for y in xrange(h): - if pixels[x, y] == 0: - pixels[x, y] = 255 + for x in xrange(w): + for y in xrange(h): + if pixels[x, y] == 0: + pixels[x, y] = 255 - count = {} + count = {} - for x in xrange(w): - count[x] = 0 - for y in xrange(h): - if pixels[x, y] == 155: - count[x] += 1 + for x in xrange(w): + count[x] = 0 + for y in xrange(h): + if pixels[x, y] == 155: + count[x] += 1 - sum = 0 - cnt = 0 + sum = 0 + cnt = 0 - for x in count.values(): - if x != 0: - sum += x - cnt += 1 + for x in count.values(): + if x != 0: + sum += x + cnt += 1 - avg = sum / cnt - counts[angle] = cnt - highest[angle] = 0 - for x in count.values(): - if x > highest[angle]: - highest[angle] = x + avg = sum / cnt + counts[angle] = cnt + highest[angle] = 0 + for x in count.values(): + if x > highest[angle]: + highest[angle] = x - highest[angle] = highest[angle] - avg + highest[angle] = highest[angle] - avg - hkey = 0 - hvalue = 0 + hkey = 0 + hvalue = 0 - for key, value in highest.iteritems(): - if value > hvalue: - hkey = key - hvalue = value + for key, value in highest.iteritems(): + if value > hvalue: + hkey = key + hvalue = value - self.image = self.image.rotate(hkey) - pixels = self.image.load() + self.image = self.image.rotate(hkey) + pixels = self.image.load() - for x in xrange(w): - for y in xrange(h): - if pixels[x, y] == 0: - pixels[x, y] = 255 + for x in xrange(w): + for y in xrange(h): + if pixels[x, y] == 0: + pixels[x, y] = 255 - if pixels[x, y] == 155: - pixels[x, y] = 0 + if pixels[x, y] == 155: + pixels[x, y] = 0 - self.pixels = pixels + self.pixels = pixels - def split_captcha_letters(self): - captcha = self.image - started = False - letters = [] - width, height = captcha.size - bottomY, topY = 0, height - pixels = captcha.load() +def split_captcha_letters(self): + captcha = self.image + started = False + letters = [] + width, height = captcha.size + bottomY, topY = 0, height + pixels = captcha.load() - for x in xrange(width): - black_pixel_in_col = False - for y in xrange(height): - if pixels[x, y] != 255: - if started == False: - started = True - firstX = x - lastX = x + for x in xrange(width): + black_pixel_in_col = False + for y in xrange(height): + if pixels[x, y] != 255: + if started == False: + started = True + firstX = x + lastX = x - if y > bottomY: bottomY = y - if y < topY: topY = y - if x > lastX: lastX = x + if y > bottomY: bottomY = y + if y < topY: topY = y + if x > lastX: lastX = x - black_pixel_in_col = True + black_pixel_in_col = True - if black_pixel_in_col == False and started == True: - rect = (firstX, topY, lastX, bottomY) - new_captcha = captcha.crop(rect) + if black_pixel_in_col == False and started == True: + rect = (firstX, topY, lastX, bottomY) + new_captcha = captcha.crop(rect) - w, h = new_captcha.size - if w > 5 and h > 5: - letters.append(new_captcha) + w, h = new_captcha.size + if w > 5 and h > 5: + letters.append(new_captcha) - started = False - bottomY, topY = 0, height + started = False + bottomY, topY = 0, height - return letters + return letters - def correct(self, values, var=None): +def correct(self, values, var=None): - if var: - result = var - else: - result = self.result_captcha - - for key, item in values.iteritems(): + if var: + result = var + else: + result = self.result_captcha - if key.__class__ == str: - result = result.replace(key, item) - else: - for expr in key: - result = result.replace(expr, item) + for key, item in values.iteritems(): - if var: - return result + if key.__class__ == str: + result = result.replace(key, item) else: - self.result_captcha = result + for expr in key: + result = result.replace(expr, item) + + if var: + return result + else: + self.result_captcha = result if __name__ == '__main__': -- cgit v1.2.3