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python以环状形式组合排列图片并输出

python 水墨上仙 3064次浏览

这段代码可以自定义一个空白画板,然后将指定的图片以圆环状的方式排列起来,用到了pil库,可以通过:

pip install pil 的方式安装。

# -*- coding: utf-8 -*-
__author__ = 'www.75271.com'
import math
from PIL import Image

def arrangeImagesInCircle(masterImage, imagesToArrange):
    imgWidth, imgHeight = masterImage.size

    #we want the circle to be as large as possible.
    #but the circle shouldn't extend all the way to the edge of the image.
    #If we do that, then when we paste images onto the circle, those images will partially fall over the edge.
    #so we reduce the diameter of the circle by the width/height of the widest/tallest image.
    diameter = min(
        imgWidth  - max(img.size[0] for img in imagesToArrange),
        imgHeight - max(img.size[1] for img in imagesToArrange)
    )
    radius = diameter / 2

    circleCenterX = imgWidth  / 2
    circleCenterY = imgHeight / 2
    theta = 2*math.pi / len(imagesToArrange)
    for i in range(len(imagesToArrange)):
        curImg = imagesToArrange[i]
        angle = i * theta
        dx = int(radius * math.cos(angle))
        dy = int(radius * math.sin(angle))

        #dx and dy give the coordinates of where the center of our images would go.
        #so we must subtract half the height/width of the image to find where their top-left corners should be.
        pos = (
            circleCenterX + dx - curImg.size[0]/2,
            circleCenterY + dy - curImg.size[1]/2
        )
        masterImage.paste(curImg, pos)

img = Image.new("RGB", (500,500), (255,255,255))

#下面的三个图片是3个 50x50 的pngs 图片,使用了绝对路径,需要自己进行替换成你的图片路径
imageFilenames = ["d:/www.75271.com/images/1.png", "d:/www.75271.com/images/2.png", "d:/www.75271.com/images/3.png"] * 5
images = [Image.open(filename) for filename in imageFilenames]

arrangeImagesInCircle(img, images)

img.save("output.png")


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