Learn Python programming: parse and draw Bingdundun code

Python Programming Tutorial: Draw Bingdundun’s Code Analysis

Introduction:
With the development of artificial intelligence, the Python programming language has become more and more popular in various fields. Applications are becoming more and more widespread. In the field of computer vision, Python can be used to create and process images, making image processing simpler and more efficient. This tutorial will take drawing a cute ice cube as an example, introduce the method of using Python programming to realize image drawing, and give specific code examples.

1. Preparation:
Before we start, we need to install two Python libraries with powerful functions: numpy and matplotlib. Numpy is a Python scientific computing library that provides a large number of tools for processing arrays. And Matplotlib is a Python library for drawing charts and images.
We can install these two libraries by entering the following commands on the command line:

pip install numpy
pip install matplotlib

2. Step analysis:

1. Import libraries and modules:
   First , we need to import the numpy and matplotlib libraries in the code. At the beginning of the code file, add the following code:

import numpy as np
import matplotlib.pyplot as plt

2. Create canvas and axis objects:
   Use the matplotlib library to create canvas and axis objects conveniently Draw the image. Add the following code to the code:

fig, ax = plt.subplots()

3. Draw the image:
   Next, we can start drawing the image. Images can be displayed using the imshow() function of the numpy library. The following is a sample code for drawing ice piers:

# 创建一个200x200大小的0矩阵作为画布
canvas = np.zeros((200, 200))

# 绘制冰墩墩的身体
canvas[50:100, 75:125] = 1

# 绘制冰墩墩的眼睛和嘴巴
canvas[65:75, 85:95] = 0.5
canvas[80:90, 85:95] = 0.5
canvas[95:105, 85:95] = 0.5

# 绘制冰墩墩的帽子
canvas[45:55, 65:135] = 0.8
canvas[55:65, 75:125] = 0.8

# 显示图像
ax.imshow(canvas, cmap='gray', vmin=0, vmax=1)

4. Set image properties:
   We can use some optional parameters to adjust the properties of the image, such as color, when drawing the image Mapping, axis scaling, etc. At the end of the sample code, add the following code:

# 设置坐标轴刻度和标签
ax.set_xticks([])
ax.set_yticks([])
ax.set_xlabel('X')
ax.set_ylabel('Y')

# 设置图像标题
ax.set_title('IceDunDun')

# 显示绘制好的图像
plt.show()

At this point, we have successfully drawn an icy image using Python code.

3. Complete code example:

import numpy as np
import matplotlib.pyplot as plt

# 创建画布和轴对象
fig, ax = plt.subplots()

# 创建一个200x200大小的0矩阵作为画布
canvas = np.zeros((200, 200))

# 绘制冰墩墩的身体
canvas[50:100, 75:125] = 1

# 绘制冰墩墩的眼睛和嘴巴
canvas[65:75, 85:95] = 0.5
canvas[80:90, 85:95] = 0.5
canvas[95:105, 85:95] = 0.5

# 绘制冰墩墩的帽子
canvas[45:55, 65:135] = 0.8
canvas[55:65, 75:125] = 0.8

# 显示图像
ax.imshow(canvas, cmap='gray', vmin=0, vmax=1)

# 设置坐标轴刻度和标签
ax.set_xticks([])
ax.set_yticks([])
ax.set_xlabel('X')
ax.set_ylabel('Y')

# 设置图像标题
ax.set_title('IceDunDun')

# 显示绘制好的图像
plt.show()

Through the above steps, we can use Python code to draw the image of ice. I hope this tutorial can help you get started in the field of Python image drawing. Welcome to further explore more interesting image processing operations!

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