1.利用python绘制一个小猪佩奇

turtle库是一个很好的python图形绘制库,利用它我们可以绘制各种各样的图形、小动物。这个库其实并不难,实际你怎么绘制这个图形,对应的代码,就跟着你的实际绘制图形的方向走下去,即可。

from turtle import *

# 绘制鼻子
def nose(x,y):
    penup()
    goto(x,y)
    pendown()
    setheading(-30)
    begin_fill()
    a=0.4
    for i in range(120): if 0<=i<30 or 60<=i<90:
            a=a+0.08 left(3) 
            forward(a) else:
            a=a-0.08 left(3)
            forward(a)
        end_fill()

    penup()
    setheading(90)
    forward(25)
    setheading(0)
    forward(10)
    pendown()
    pencolor(255,155,192)
    setheading(10)
    begin_fill()
    circle(5)
    color(160,82,45)
    end_fill()
    penup()
    setheading(0)
    forward(20)
    pendown()
    pencolor(255,155,192)
    setheading(10)
    begin_fill()
    circle(5)
    color(160,82,45)
    end_fill() # 绘制头部
def head(x,y):
    color((255,155,192),"pink")
    penup()
    goto(x,y)
    setheading(0)
    pendown()
    begin_fill()
    setheading(180)
    circle(300,-30)
    circle(100,-60)
    circle(80,-100)
    circle(150,-20)
    circle(60,-95)
    setheading(161)
    circle(-300,15)
    penup()
    goto(-100,100)
    pendown()
    setheading(-30)
    a=0.4
    for i in range(60): if 0<=i<30 or 60<=i<90:
            a=a+0.08 left(3) 
            forward(a) else:
            a=a-0.08 left(3)
            forward(a)
    end_fill() # 绘制耳朵
def ears(x,y): 
    color((255,155,192),"pink")
    penup()
    goto(x,y)
    pendown()
    begin_fill()
    setheading(100)
    circle(-50,50)
    circle(-10,120)
    circle(-50,54)
    end_fill()
    penup()
    setheading(90)
    forward(-12)
    setheading(0)
    forward(30)
    pendown()
    begin_fill()
    setheading(100)
    circle(-50,50)
    circle(-10,120)
    circle(-50,56)
    end_fill() # 绘制眼睛
def eyes(x,y):
    color((255,155,192),"white")
    penup()
    setheading(90)
    forward(-20)
    setheading(0)
    forward(-95)
    pendown()
    begin_fill()
    circle(15)
    end_fill()
    color("black")
    penup()
    setheading(90)
    forward(12)
    setheading(0)
    forward(-3)
    pendown()
    begin_fill()
    circle(3)
    end_fill()
    color((255,155,192),"white")
    penup()
    setheading(90)
    forward(-25)
    setheading(0)
    forward(40)
    pendown()
    begin_fill()
    circle(15)
    end_fill()
    color("black")
    penup()
    setheading(90)
    forward(12)
    setheading(0)
    forward(-3)
    pendown()
    begin_fill()
    circle(3)
    end_fill() # 绘制腮帮
def cheek(x,y):
    color((255,155,192))
    penup()
    goto(x,y)
    pendown()
    setheading(0)
    begin_fill()
    circle(30)
    end_fill() # 绘制嘴巴
def mouth(x,y): 
    color(239,69,19)
    penup()
    goto(x,y)
    pendown()
    setheading(-80)
    circle(30,40)
    circle(40,80) # 绘制身体
def body(x,y):
    color("red",(255,99,71))
    penup()
    goto(x,y)
    pendown()
    begin_fill()
    setheading(-130)
    circle(100,10)
    circle(300,30)
    setheading(0)
    forward(230)
    setheading(90)
    circle(300,30)
    circle(100,3)
    color((255,155,192),(255,100,100))
    setheading(-135)
    circle(-80,63)
    circle(-150,24)
    end_fill() # 绘制手
def hands(x,y):
    color((255,155,192))
    penup()
    goto(x,y)
    pendown()
    setheading(-160)
    circle(300,15)
    penup()
    setheading(90)
    forward(15)
    setheading(0)
    forward(0)
    pendown()
    setheading(-10)
    circle(-20,90)
    penup()
    setheading(90)
    forward(30)
    setheading(0)
    forward(237)
    pendown()
    setheading(-20)
    circle(-300,15)
    penup()
    setheading(90)
    forward(20)
    setheading(0)
    forward(0)
    pendown()
    setheading(-170)
    circle(20,90) # 绘制脚
def foot(x,y):
    pensize(10)
    color((240,128,128))
    penup()
    goto(x,y)
    pendown()
    setheading(-90)
    forward(40)
    setheading(-180)
    color("black")
    pensize(15)
    forward(20)
    pensize(10)
    color((240,128,128))
    penup()
    setheading(90)
    forward(40)
    setheading(0)
    forward(90)
    pendown()
    setheading(-90)
    forward(40)
    setheading(-180)
    color("black")
    pensize(15)
    forward(20) # 绘制尾巴
def tail(x,y):
    pensize(4)
    color((255,155,192))
    penup()
    goto(x,y)
    pendown()
    setheading(0)
    circle(70,20)
    circle(10,330)
    circle(70,30) # 设置画布和画笔
def setting(): 
    pensize(4)
    hideturtle()
    colormode(255)
    color((255,155,192),"pink")
    setup(840,500)
    speed(10) def main():
    setting() # 画布和画笔设置
    nose(-100,100)    # 鼻子
    head(-69,167)     # 头
    ears(0,160)       # 耳朵
    eyes(0,140)       # 眼睛
    cheek(80,10)      # 腮帮
    mouth(-20,30)     # 嘴巴
    body(-32,-8)      # 身体
    hands(-56,-45)    # 手
    foot(2,-177)      # 脚
    tail(148,-155)    # 尾巴
    done()            # 结束
if __name__ == '__main__':
    main()

结果如下:

python画一只猪的代码 怎么用python画猪_python画一只猪的代码

2.利用python给小猪佩奇换背景色

换背景色的原理:每一个图像都是由像素点构成的,我们想要替换他们的颜色,就是找到每个像素点对应的位置,然后用指定颜色,去替换它!一般证件照背景色并不是同一种蓝色像素点,无法完成像素点的定位,这就需要我们对图像进行【腐蚀】或【膨胀】,完成图片黑白话,这样白色的像素点是255,就可以很好的定位了。

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mport cv2 import numpy as np # 读取照片
img=cv2.imread('zhu.jpg') # 图像缩放
img = cv2.resize(img,None,fx=0.5,fy=0.5)
rows,cols,channels = img.shape print(rows,cols,channels)
cv2.imshow('img',img) # 图片转换为灰度图
hsv = cv2.cvtColor(img,cv2.COLOR_BGR2HSV)
cv2.imshow('hsv',hsv) # 图片的二值化处理
lower_blue=np.array([90,70,70])
upper_blue=np.array([110,255,255])
mask = cv2.inRange(hsv, lower_blue, upper_blue) #腐蚀膨胀
erode=cv2.erode(mask,None,iterations=1)
cv2.imshow('erode',erode)

dilate=cv2.dilate(erode,None,iterations=1)
cv2.imshow('dilate',dilate) #遍历替换
for i in range(rows): for j in range(cols): if erode[i,j]==255: # 像素点为255表示的是白色,我们就是要将白色处的像素点,替换为红色
      img[i,j]=(0,0,255)#此处替换颜色,为BGR通道
cv2.imshow('res',img) # 窗口等待的命令,0表示无限等待
cv2.waitKey(0)

结果如下:

python画一只猪的代码 怎么用python画猪_python画一只猪的代码_02

3.利用python将小猪佩奇切分为九宫格

将图片切分为九宫格的原理就是:找到图片对应位置的坐标,然后进行切割。由于是九宫格,我们切分的是3*3,然后利用双层循环遍历对应位置的坐标后,进行图片切割

from PIL import Image import sys #将图片填充为正方形
def fill_image(image):
    width, height = image.size #选取长和宽中较大值作为新图片的,小的地方,用图片填充为等宽等高
    new_image_length = width if width > height else height #生成新图片[白底]
    new_image = Image.new(image.mode, (new_image_length, new_image_length), color='white') #将之前的图粘贴在新图上,居中
    if width > height:#原图宽大于高,则填充图片的竖直维度
        #(x,y)二元组表示粘贴上图相对下图的起始位置
        new_image.paste(image, (0, int((new_image_length - height) / 2))) else:
        new_image.paste(image, (int((new_image_length - width) / 2),0)) return new_image #切图
def cut_image(image):
    width, height = image.size
    item_width = int(width / 3)
    item_height = int(height / 3)
    box_list = [] #双重循环,生成9张图片基于原图的位置
    # 注意:图片左上角是(0,0),右下角是(width,height)
    for i in range(0,3): for j in range(0,3): print((j*item_width,i*item_height,(j+1)*item_width,(i+1)*item_height))
            box = (j*item_width,i*item_height,(j+1)*item_width,(i+1)*item_height)
            box_list.append(box)

    image_list = [image.crop(box) for box in box_list] return image_list #保存
def save_images(image_list):
    index = 1
    for image in image_list:
        image.save(str(index) + '.jpg')
        index += 1 file_path = "zhuzhu.jpg" image = Image.open(file_path)
image = fill_image(image)
image_list = cut_image(image)
save_images(image_list)

结果如下:

python画一只猪的代码 怎么用python画猪_编程语言_03