Skip to Content
Raspberry Pi 3 Cookbook for Python Programmers - Third Edition
book

Raspberry Pi 3 Cookbook for Python Programmers - Third Edition

by Steven Lawrence Fernandes, Tim Cox
April 2018
Beginner content levelBeginner
552 pages
13h 58m
English
Packt Publishing
Content preview from Raspberry Pi 3 Cookbook for Python Programmers - Third Edition

How to do it...

  1. Import the necessary packages:
import cv2 
import numpy as np   
from sklearn import preprocessing 
  1. Load the encoding and decoding task operators:
class LabelEncoding(object): 
  # Method to encode labels from words to numbers 
  def encoding_labels(self, label_wordings): 
    self.le = preprocessing.LabelEncoder() 
    self.le.fit(label_wordings) 
  1. Implement word-to-number conversion for the input label:
  def word_to_number(self, label_wordings): 
    return int(self.le.transform([label_wordings])[0]) 
  1. Convert the input label from a number to word:
  def number_to_word(self, label_number): 
    return self.le.inverse_transform([label_number])[0] 
  1. Extract images and labels from the input path:
def getting_images_and_labels(path_input): label_wordings ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Raspberry Pi for Python Programmers Cookbook - Second Edition

Raspberry Pi for Python Programmers Cookbook - Second Edition

Tim Cox

Publisher Resources

ISBN: 9781788629874Supplemental Content