add PIL samples

michaelliao · michaelliao · commit 855b0185cee9 · 2015-04-28T21:39:54.000+08:00
diff --git a/samples/packages/pil/README b/samples/packages/pil/README
@@ -0,0 +1,26 @@
+Install PIL
+===========
+
+### Windows
+
+Open web page: https://pypi.python.org/pypi/Pillow/2.8.1
+
+Find link of "Pillow-2.8.1.win-amd64-py3.4.exe" and download it:
+
+https://pypi.python.org/packages/3.4/P/Pillow/Pillow-2.8.1.win-amd64-py3.4.exe
+
+### Mac OS X
+
+Step 1: Install dependencies by brew:
+
+$ brew install libtiff libjpeg webp little-cms2
+
+Step 2: Install Pillow by pip:
+
+$ sudo pip3 install Pillow
+
+### Linux
+
+For Debian/Ubuntu:
+
+$ sudo apt-get install python3-pil
diff --git a/samples/packages/pil/test.jpg b/samples/packages/pil/test.jpg
diff --git a/samples/packages/pil/use_pil_blur.py b/samples/packages/pil/use_pil_blur.py
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+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+from PIL import Image, ImageFilter
+
+# 打开一个jpg图像文件，注意是当前路径:
+im = Image.open('test.jpg')
+# 应用模糊滤镜:
+im2 = im.filter(ImageFilter.BLUR)
+im2.save('blur.jpg', 'jpeg')
diff --git a/samples/packages/pil/use_pil_draw.py b/samples/packages/pil/use_pil_draw.py
@@ -0,0 +1,37 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+from PIL import Image, ImageDraw, ImageFont, ImageFilter
+
+import random
+
+# 随机字母:
+def rndChar():
+    return chr(random.randint(65, 90))
+
+# 随机颜色1:
+def rndColor():
+    return (random.randint(64, 255), random.randint(64, 255), random.randint(64, 255))
+
+# 随机颜色2:
+def rndColor2():
+    return (random.randint(32, 127), random.randint(32, 127), random.randint(32, 127))
+
+# 240 x 60:
+width = 60 * 4
+height = 60
+image = Image.new('RGB', (width, height), (255, 255, 255))
+# 创建Font对象:
+font = ImageFont.truetype('Arial.ttf', 36)
+# 创建Draw对象:
+draw = ImageDraw.Draw(image)
+# 填充每个像素:
+for x in range(width):
+    for y in range(height):
+        draw.point((x, y), fill=rndColor())
+# 输出文字:
+for t in range(4):
+    draw.text((60 * t + 10, 10), rndChar(), font=font, fill=rndColor2())
+# 模糊:
+image = image.filter(ImageFilter.BLUR)
+image.save('code.jpg', 'jpeg')
diff --git a/samples/packages/pil/use_pil_resize.py b/samples/packages/pil/use_pil_resize.py
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+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+from PIL import Image
+
+# 打开一个jpg图像文件，注意是当前路径:
+im = Image.open('test.jpg')
+# 获得图像尺寸:
+w, h = im.size
+print('Original image size: %sx%s' % (w, h))
+# 缩放到50%:
+im.thumbnail((w//2, h//2))
+print('Resize image to: %sx%s' % (w//2, h//2))
+# 把缩放后的图像用jpeg格式保存:
+im.save('thumbnail.jpg', 'jpeg')
