python pillow 绘制图片

demo1

#coding=utf-
from PIL import Image
img = Image.new("RGB",(,))###创建一个5*5的图片
pixTuple = (,,,)###三个参数依次为R,G,B,A   R：红 G:绿 B:蓝 A:透明度
for i in range():
    for j in range():
        img.putpixel((i,j),pixTuple)
img.save("bb.png")

demo2

import time
from PIL import Image
with open("aa-1.log","r") as f:
    costlist=eval(f.read())
img = Image.new("RGB",(,))###创建图片
single=[]
count=
for i in range():
    for j in range():
        x=int(costlist[count])
        #if(x not in single):
            #single.append(x)
        if(x<):
            pixTuple = (,,,x)
            img.putpixel((i,j),pixTuple)
        elif(x<):
            pixTuple = (,,,x)
            img.putpixel((i,j),pixTuple)
        elif(x<):
            pixTuple = (,,,x)
            img.putpixel((i,j),pixTuple)
        elif(x<):
            pixTuple = (,,,x)
            img.putpixel((i,j),pixTuple)
        elif(x<):
            pixTuple = (,,,x)
            img.putpixel((i,j),pixTuple)
        elif(x<):
            pixTuple = (,,,x)
            img.putpixel((i,j),pixTuple)
        elif(x<):
            pixTuple = (,,,x)
            img.putpixel((i,j),pixTuple)
        elif(x<):
            pixTuple = (,,,x)
            img.putpixel((i,j),pixTuple)
        elif(x<):
            pixTuple = (,,,x)
            img.putpixel((i,j),pixTuple)
        elif(x<=):
            pixTuple = (,,,x)
            img.putpixel((i,j),pixTuple)
        count+=
img.save("bb.png")
#print(single)

参考：
https://blog.csdn.net/caobin0825/article/details/80338438