January 2023
Intermediate to advanced
288 pages
6h 6m
Chinese
Content preview from 移动端AI与ML应用开发：基于iOS和Android
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,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
19
第
2
章
计算机视觉简介
虽然本书的目的不是教你构建和训练机器学习模型的所有基础知识，但我确实想涵盖
一些基本场景，以便本书仍然可以独立使用。如果你想了解更多关于使用 TensorFlow
的模型创建过程，我推荐我的书籍
AI and Machine Learning for Coders
（由 O
’
Reilly 出
版），如果你想深入探究，那么 Aurélien Géron 的优秀著作《机器学习实战：基于 Scikit-
Learn、Keras 和 TensorFlow 》一书是必需的！
在本章中，我们将越过你在第 1 章创建的非常基本的模型，查看两个更复杂的模型，你
将在其中处理计算机视觉
—
计算机如何“看到”对象。与术语“人工智能”和“机器
学习”类似，短语“计算机视觉”和“看”可能会导致人们误解模型的基本原理。
计算机视觉是一个巨大的研究领域，本章我们将重点关注几个核心场景，我们将使用技
术来解析图像的内容，或者标记图像的主要内容，或者在图像中查找物体。
它并不是真正的“视觉”或“看”，而是更多的结构化算法，允许计算机解析图像的像
素。它不会“理解”图像，就像它将单词解析为单个字符串时理解句子的含义一样！
如果我们尝试使用传统的基于规则的方法来完成这项任务，即使是最简单的图像，我们
最终也会有很多代码行。机器学习是这里的关键参与者，正如你在本章中看到的，通过
使用我们在第 1 章用到的相同代码模式，更深入一点，我们可以创建解析图像内容的模
型……只需几行代码。让我们开始吧。
2.1
为视觉使用神经元
在第 ...
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.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.