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chenguohuichenguohui
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Chapter 17 finished
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‎17-image/README.md‎

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# Pillow
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`pip install pillow`
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<pre>
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from PIL import ImageColor
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from PIL import Image
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</pre>
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‎17-image/catlogo.png‎

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‎17-image/cropped.png‎

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‎17-image/drawAndText.py‎

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from PIL import Image, ImageDraw
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im = Image.new('RGBA', (200, 200), 'white')
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draw = ImageDraw.Draw(im)
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draw.line([(0, 0), (199, 0), (199, 199), (0, 199), (0, 0)], fill='black')
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draw.rectangle((20, 30, 60, 60), fill='blue')
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draw.ellipse((120, 30, 160, 60), fill='red')
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draw.polygon(((57, 87), (79, 62), (94, 85), (120, 90), (103, 113)),
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fill='brown')
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for i in range(100, 200, 10):
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draw.line([(i, 0), (200, i - 100)], fill='green')
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im.save('drawing.png')
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from PIL import ImageFont
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import os
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im = Image.new('RGBA', (200, 200), 'white')
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draw = ImageDraw.Draw(im)
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draw.text((20, 150), 'Hello', fill='purple')
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fontsFolder = 'C:/Windows/Fonts'
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arialFont = ImageFont.truetype(os.path.join(fontsFolder, 'arial.ttf'), 32)
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draw.text((100, 150), 'Howdy', fill='gray', font=arialFont)
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im.save('text.png')

‎17-image/drawing.png‎

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‎17-image/imageOp.py‎

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catIm = Image.open('zophie.png')
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width, height = catIm.size
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catIm.save('zophie.jpg')
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im = Image.new('RGBA', (100,200), 'purple')
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im.save('purpleImage.png')
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im2 = Image.new('RGBA', (20, 20))
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im2.save('transparentImage.png')
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croppedIm = catIm.crop((335,345, 565,560))
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croppedIm.save('cropped.png')
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catCopyIm = catIm.copy()
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facedIm = catIm.crop((335,345, 565,560))
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faceIm = catIm.crop((335,345, 565,560))
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catCopyIm.paste(faceIm, (0, 0))
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catCopyIm.paste(faceIm, (400, 500))
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catCopyIm.save('pasted.png')
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w, h = catIm.size
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fw, fh = faceIm.size
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catCopyTwo = catIm.copy()
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for left in range(0, w, fw):
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for top in range(0, h, fh):
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print(left, top)
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catCopyTwo.paste(faceIm, (left, top))
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catCopyTwo.save('tiled.png')
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qIm = catIm.resize((int(w/2), int(h/2)))
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qIm.save('quartersized.png')
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sveltedIm = catIm.resize((w, h+300))
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sveltedIm.save('svelte.png')
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catIm.rotate(90).save('rotated90.png')
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catIm.rotate(180).save('rotated180.png')
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catIm.rotate(270).save('rotated270.png')
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catIm.rotate(6).save('rotated6.png')
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catIm.rotate(6, expand=True).save('rotated6_expanded.png')
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im = Image.new('RGBA', (100, 100))
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im.getpixel((0,0))
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(0, 0, 0, 0)
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for x in range(100):
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for y in range(50):
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im.putpixel((x, y), (210, 210, 210))
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for x in range(100):
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for y in range(50, 100):
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im.putpixel((x, y), ImageColor.getcolor('darkgray', 'RGBA'))
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from PIL import ImageColor
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for x in range(100):
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for y in range(50, 100):
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im.putpixel((x, y), ImageColor.getcolor('darkgray', 'RGBA'))
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im.save('putPixel.png')

‎17-image/pasted.png‎

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‎17-image/png2jpg.py‎

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from PIL import Image
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catIm = Image.open('zophie.png')
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catIm.save('zophie.jpg')

‎17-image/purpleImage.png‎

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‎17-image/putPixel.png‎

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