Python中用PIL/Pillow裁剪图片

原文

如果系统中没有安装Pillow包，安装：

1	pip install pillow

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# 导入pillow from PIL import Image   # 加载原始图片 img = Image . open ( "lena.jpg" )   # 从左上角开始 剪切 200*200的图片 img2 = img . crop ( ( 0 , 0 , 200 , 200 ) ) img2 . save ( "lena2.jpg" )

从右下角开始(200*200)

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width = img . size [ 0 ]    # 图片大小 height = img . size [ 1 ] img3 = img . crop (      (          width - 200 ,          height - 200 ,          width ,          height      ) ) img3 . save ( "lena3.jpg" )

从中心开始（100*150）

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half_the_width = img . size [ 0 ] / 2 half_the_height = img . size [ 1 ] / 2 img4 = img . crop (      (          half_the_width - 50 ,          half_the_height - 75 ,          half_the_width + 50 ,          half_the_height + 75      ) ) img4 . save ( "lena4.jpg" )

把图片填充为正方形

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longer_side = max ( img4 . size ) horizontal_padding = ( longer_side - img4 . size [ 0 ] ) / 2 vertical_padding = ( longer_side - img4 . size [ 1 ] ) / 2 img5 = img4 . crop (      (          - horizontal_padding ,          - vertical_padding ,          img4 . size [ 0 ] + horizontal_padding ,          img4 . size [ 1 ] + vertical _padding      ) ) img5 . save ( "lena5.jpg" )