python以環狀形式組合排列圖片並輸出的方法

 這篇文章主要介紹了python以環狀形式組合排列圖片並輸出的方法,涉及Python使用pil庫操作圖片的技巧,具有一定參考借鑒價值,需要的朋友可以參考下

   

本文實例講述了python以環狀形式組合排列圖片並輸出的方法。分享給大家供大家參考。具體分析如下：

這段代碼可以自定義一個空白畫板，然後將指定的圖片以圓環狀的方式排列起來，用到了pil庫，可以通過：
pip install pil 的方式安裝。

具體代碼如下：

代碼如下: # -*- coding: utf-8 -*-
__author__ = 'www.jb51.net'
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))
#下面的三個圖片是3個 50x50 的pngs 圖片，使用了絕對路徑，需要自己進行替換成你的圖片路徑
imageFilenames = ["d:/www.jb51.net/images/1.png", "d:/www.jb51.net/images/2.png", "d:/www.jb51.net/images/3.png"] * 5
images = [Image.open(filename) for filename in imageFilenames]
arrangeImagesInCircle(img, images)
img.save("output.png")

 

希望本文所述對大家的Python程序設計有所幫助。