本文实例为大家分享了Python调用Matplotlib绘制分布点添加标签的具体代码,供大家参考,具体内容如下
- 添加标签的目的
- 代码
- 截图
目的
上文介绍了根据图像的大小作为坐标来绘制分布点图。老大又给了我一个任务,我绘制完,每次将图保存,发给她,但是图片中的点的坐标是不能显示了,所以她让我给每个点添加个label,而且label是该点的横纵坐标。
代码
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import matplotlib.pyplot as plt
from numpy.random import rand
import numpy
import os
import cv2
#setting plt
plt.xlim(xmax = 100 ,xmin = 0 )
plt.ylim(ymax = 100 ,ymin = 0 )
plt.xlabel( "height" )
plt.ylabel( "width" )
path_1 = r 'D:\zhangjichao\view\V7_scale_2\path_1'
x = []
y = []
files = os.listdir(path_1)
for f in files:
img = cv2.imread(path_1 + '\\' + f)
x.append(img.shape[ 0 ])
y.append(img.shape[ 1 ])
plt.plot(x,y, 'ro' ,color = 'red' ,label = 'path_1' )
path_2 = r 'D:\zhangjichao\view\V7_scale_2\path_2'
x = []
y = []
files = os.listdir(path_2)
for f in files:
img = cv2.imread(path_2 + '\\' + f)
x.append(img.shape[ 0 ])
y.append(img.shape[ 1 ])
plt.plot(x,y, 'ro' ,color = 'red' ,label = 'path_2' )
path_3 = r 'D:\zhangjichao\view\V7_scale_2\path_3'
x = []
y = []
files = os.listdir(path_3)
for f in files:
img = cv2.imread(path_3 + '\\' + f)
x.append(img.shape[ 0 ])
y.append(img.shape[ 1 ])
plt.plot(x,y, 'ro' ,color = 'red' ,label = 'path_3' )
path_4 = r 'D:\zhangjichao\view\V7_scale_2\path_4'
x = []
y = []
files = os.listdir(path_4)
for f in files:
img = cv2.imread(path_4 + '\\' + f)
x.append(img.shape[ 0 ])
y.append(img.shape[ 1 ])
plt.plot(x,y, 'ro' ,color = 'red' ,label = 'path_4' )
yujing = r 'D:\zhangjichao\view\V7_scale_2\xujing_org_scale_2'
x = []
y = []
files = os.listdir(yujing)
for f in files:
img = cv2.imread(yujing + '\\' + f)
x.append(img.shape[ 0 ])
y.append(img.shape[ 1 ])
plt.plot(x,y, 'ro' ,color = 'green' , label = 'xujing' )
for i in range ( 1 , len (x)):
plt.text(x[i],y[i], str ((x[i],y[i])), family = 'serif' , style = 'italic' , ha = 'right' , wrap = True )
plt.legend(loc = 'upper center' , shadow = True , fontsize = 'x-large' )
plt.grid( True )
plt.show()
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截图
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/u013139259/article/details/52141863