Python 2种方法实现叠加矩形框图层

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我是靠谱客的博主忧郁豌豆，这篇文章主要介绍Python 2种方法实现叠加矩形框图层，现在分享给大家，希望可以做个参考。

两种方式以及效果：

方式一，使用PIL.Image.blend方式：

复制代码from PIL import Image, ImageDraw
im = Image.open('d:/tmp/58.249.0.220_01_20200604141800866_TIMING.jpg', 'r')
im2 = Image.open('d:/tmp/58.249.0.220_01_20200604141800866_TIMING.jpg', 'r')
draw = ImageDraw.Draw(im2)
draw.rectangle([(1000, 500), (1200, 800)], fill=(255, 0, 0), width=2)
out = Image.blend(im, im2, 0.5)
out.save('d:/tmp/demo1.jpg')
im.close()
im2.close()
out.show()
out.close()1
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from PIL import Image, ImageDraw
im = Image.open('d:/tmp/58.249.0.220_01_20200604141800866_TIMING.jpg', 'r')
im2 = Image.open('d:/tmp/58.249.0.220_01_20200604141800866_TIMING.jpg', 'r')
draw = ImageDraw.Draw(im2)
draw.rectangle([(1000, 500), (1200, 800)], fill=(255, 0, 0), width=2)
out = Image.blend(im, im2, 0.5)
out.save('d:/tmp/demo1.jpg')
im.close()
im2.close()
out.show()
out.close()
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方式二：直接进行像素叠加：

复制代码from PIL import Image, ImageDraw

im = Image.open('d:/tmp/58.249.0.220_01_20200604141800866_TIMING.jpg', 'r')
b = (255, 0, 0)
opacity = 0.5

for x in range(1000, 1200):
  for y in range(500, 800):
    p = im.getpixel((x, y))
    p = [int(p[i]*(1-opacity) + b[i]*opacity) for i in range(3)]
    im.putpixel((x, y), tuple(p))

im.save('d:/tmp/demo2.jpg')
im.show()
im.close()1
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from PIL import Image, ImageDraw

im = Image.open('d:/tmp/58.249.0.220_01_20200604141800866_TIMING.jpg', 'r')
b = (255, 0, 0)
opacity = 0.5

for x in range(1000, 1200):
  for y in range(500, 800):
    p = im.getpixel((x, y))
    p = [int(p[i]*(1-opacity) + b[i]*opacity) for i in range(3)]
    im.putpixel((x, y), tuple(p))

im.save('d:/tmp/demo2.jpg')
im.show()
im.close()
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