def select_text(self):
if len(self._texts) == 1:
# 经过init_text后，如果还是只有一个元素，则认为这个元素就是可显示在验证中所有字符的集合
return ''.join([CaptchaUtils.random_choice_from(self._texts[0]) for i in range(self._num)])
elif len(self._texts) > 1:
# 否则，每个元素对应一张验证码的内容
return CaptchaUtils.random_choice_from(self._texts).strip("\n")
def joint_image(self):
average = int(self._width / self._num)
except_x = 0
for char in self._chars:
_char = char.char
# _char.show()
w, h = _char.size
except_y = int((self._height - h) / 2)
if char.position_x is None:
char.set_x(self.get_actual_x(except_x, w))
if char.position_y is None:
char.set_y(self.get_actual_y(except_y, h))
self._captcha.paste(_char, (char.position_x, char.position_y),
char.mask)
# self._captcha.show()
self._char_pos.append((char.position_x, char.position_y, w, h))
if self._outline_color:
color = CaptchaUtils.get_rgb(self._outline_color)
self.draw_outline(char.position_x, char.position_y, w, h,
color)
# 左对齐
if self._align == 1:
except_x += _char.width
else: # 两端对齐
except_x += average
def draw_noise_curve(self,
color="0x484848",
number=4,
width=3,
type="line"):
points = [
CaptchaUtils.random_point(self._width, self._height)
for i in range(number + 1)
]
if type == "line":
for idx in range(len(points) - 1):
CaptchaUtils.draw_line(self._captcha, points[idx],
points[idx + 1],
CaptchaUtils.get_rgb(color), width)
elif type == "curve":
pass
# CaptchaUtils.draw_curve()
else:
pass
def init_captcha(self):
tmp_captcha = None
if os.path.isfile(self._background):
tmp_captcha = Image.open(self._background).resize(
(self._width, self._height))
else:
bg = CaptchaUtils.get_rgb(self._background)
tmp_captcha = Image.new('RGB', (self._width, self._height), bg)
if self._bg_custom_fn:
tmp_captcha = self._bg_custom_fn(tmp_captcha)
return tmp_captcha
def create_character(self):
font = self.generate_true_font()
w, h = self._draw.textsize(self._char_text, font=font)
self._char_image = Image.new('RGB', (w, h), 0) # (255, 255, 255)
color = CaptchaUtils.get_rgb(self._color)
Draw(self._char_image).text((0, 0),
self._char_text,
font=font,
fill=color)
# self._char_image.show()
self._char_image = self._char_image.rotate(self._rotate,
Image.BILINEAR,
expand=1)
self._char_image = self._char_image.crop(self._char_image.getbbox())
if self._custom_fn:
tmp = self._char_image
self._char_image = self._custom_fn(tmp)
self._char_image = self._char_image.crop(
self._char_image.getbbox())
self._width = self._char_image.size[0]
self._height = self._char_image.size[1]
def select_bg_custom_fn(self):
fn = None
if self._bg_custom_fns:
fn = CaptchaUtils.random_choice_from(self._bg_custom_fns)
return fn
def select_background(self):
bg = CaptchaUtils.random_choice_from(self._bgs)
return bg
def init_font_size(self):
CaptchaUtils.random_choice_from(self._char_sizes)
def draw_outline(self, actual_x, actual_y, w, h, color):
CaptchaUtils.draw_rectangle(self._captcha, (actual_x, actual_y, w, h),
color)
def draw_noise_dot(self, color="0x484848", width=3, number=30):
while number:
CaptchaUtils.draw_dot(self._captcha,
color=CaptchaUtils.get_rgb(color),
width=width)
number -= 1
def select_color(self):
color = CaptchaUtils.random_choice_from(self._char_colors)
return color
def select_char_tran(self):
char_tran = CaptchaUtils.random_choice_from(self._char_tran)
return char_tran
def select_size(self):
size = CaptchaUtils.random_choice_from(self._char_sizes)
return size
def select_font(self):
font = CaptchaUtils.random_choice_from(self._char_fonts)
return font