Python生成隨機驗證碼,須要使用PIL模塊.python
安裝:app
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pip3 install pillow
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1. 建立圖片dom
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from
PIL
import
Image
img
=
Image.new(mode
=
'RGB'
, size
=
(
120
,
30
), color
=
(
255
,
255
,
255
))
# 在圖片查看器中打開
# img.show()
# 保存在本地
with
open
(
'code.png'
,
'wb'
) as f:
img.save(f,
format
=
'png'
)
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2. 建立畫筆,用於在圖片上畫任意內容字體
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img
=
Image.new(mode
=
'RGB'
, size
=
(
120
,
30
), color
=
(
255
,
255
,
255
))
draw
=
ImageDraw.Draw(img, mode
=
'RGB'
)
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3. 畫點spa
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img
=
Image.new(mode
=
'RGB'
, size
=
(
120
,
30
), color
=
(
255
,
255
,
255
))
draw
=
ImageDraw.Draw(img, mode
=
'RGB'
)
# 第一個參數:表示座標
# 第二個參數:表示顏色
draw.point([
100
,
100
], fill
=
"red"
)
draw.point([
300
,
300
], fill
=
(
255
,
255
,
255
))
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4. 畫線code
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img
=
Image.new(mode
=
'RGB'
, size
=
(
120
,
30
), color
=
(
255
,
255
,
255
))
draw
=
ImageDraw.Draw(img, mode
=
'RGB'
)
# 第一個參數:表示起始座標和結束座標
# 第二個參數:表示顏色
draw.line((
100
,
100
,
100
,
300
), fill
=
'red'
)
draw.line((
100
,
100
,
300
,
100
), fill
=
(
255
,
255
,
255
))
|
5. 畫圓orm
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img
=
Image.new(mode
=
'RGB'
, size
=
(
120
,
30
), color
=
(
255
,
255
,
255
))
draw
=
ImageDraw.Draw(img, mode
=
'RGB'
)
# 第一個參數:表示起始座標和結束座標(圓要畫在其中間)
# 第二個參數:表示開始角度
# 第三個參數:表示結束角度
# 第四個參數:表示顏色
draw.arc((
100
,
100
,
300
,
300
),
0
,
90
,fill
=
"red"
)
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6. 寫文本blog
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img
=
Image.new(mode
=
'RGB'
, size
=
(
120
,
30
), color
=
(
255
,
255
,
255
))
draw
=
ImageDraw.Draw(img, mode
=
'RGB'
)
# 第一個參數:表示起始座標
# 第二個參數:表示寫入內容
# 第三個參數:表示顏色
draw.text([
0
,
0
],
'python'
,
"red"
)
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7. 特殊字體文字圖片
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img
=
Image.new(mode
=
'RGB'
, size
=
(
120
,
30
), color
=
(
255
,
255
,
255
))
draw
=
ImageDraw.Draw(img, mode
=
'RGB'
)
# 第一個參數:表示字體文件路徑
# 第二個參數:表示字體大小
font
=
ImageFont.truetype(
"kumo.ttf"
,
28
)
# 第一個參數:表示起始座標
# 第二個參數:表示寫入內容
# 第三個參數:表示顏色
# 第四個參數:表示顏色
draw.text([
0
,
0
],
'python'
,
"red"
, font
=
font)
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import
random
def
check_code(width
=
120
, height
=
30
, char_length
=
5
, font_file
=
'kumo.ttf'
, font_size
=
28
):
code
=
[]
img
=
Image.new(mode
=
'RGB'
, size
=
(width, height), color
=
(
255
,
255
,
255
))
draw
=
ImageDraw.Draw(img, mode
=
'RGB'
)
def
rndChar():
"""
生成隨機字母
:return:
"""
return
chr
(random.randint(
65
,
90
))
def
rndColor():
"""
生成隨機顏色
:return:
"""
return
(random.randint(
0
,
255
), random.randint(
10
,
255
), random.randint(
64
,
255
))
# 寫文字
font
=
ImageFont.truetype(font_file, font_size)
for
i
in
range
(char_length):
char
=
rndChar()
code.append(char)
h
=
random.randint(
0
,
4
)
draw.text([i
*
width
/
char_length, h], char, font
=
font, fill
=
rndColor())
# 寫干擾點
for
i
in
range
(
40
):
draw.point([random.randint(
0
, width), random.randint(
0
, height)], fill
=
rndColor())
# 寫干擾圓圈
for
i
in
range
(
40
):
draw.point([random.randint(
0
, width), random.randint(
0
, height)], fill
=
rndColor())
x
=
random.randint(
0
, width)
y
=
random.randint(
0
, height)
draw.arc((x, y, x
+
4
, y
+
4
),
0
,
90
, fill
=
rndColor())
# 畫干擾線
for
i
in
range
(
5
):
x1
=
random.randint(
0
, width)
y1
=
random.randint(
0
, height)
x2
=
random.randint(
0
, width)
y2
=
random.randint(
0
, height)
draw.line((x1, y1, x2, y2), fill
=
rndColor())
img
=
img.
filter
(ImageFilter.EDGE_ENHANCE_MORE)
return
img,''.join(code)
if
__name__
=
=
'__main__'
:
# 1. 直接打開
# img,code = check_code()
# img.show()
# 2. 寫入文件
# img,code = check_code()
# with open('code.png','wb') as f:
# img.save(f,format='png')
# 3. 寫入內存(Python3)
# from io import BytesIO
# stream = BytesIO()
# img.save(stream, 'png')
# stream.getvalue()
# 4. 寫入內存(Python2)
# import StringIO
# stream = StringIO.StringIO()
# img.save(stream, 'png')
# stream.getvalue()
pass
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注意:字體文件下載,猛擊這裏ip