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• Title Page
• Copyright Page
• ACKNOWLEDGMENTS
• Contents
• Preface for the Fourth Edition
• Preface to the First Edition
• About the Authors
• 1 INTRODUCTION
• 1 Introduction to Computer Science and Media Computation
• 1.1 What Is Computer Science About?
• 1.2 Programming Languages
• 1.3 What Computers Understand
• 1.4 Media Computation: Why Digitize Media?
• 1.5 Computer Science for Everyone
• 1.5.1 It’s About Communication
• 1.5.2 It’s About Process
• 1.5.3 You Will Probably Need It
• 2 Introduction to Programming
• 2.1 Programming Is About Naming
• 2.1.1 Files and Their Names
• 2.2 Programming in Python
• 2.3 Programming in JES
• 2.4 Media Computation in JES
• 2.4.1 Showing a Picture
• 2.4.2 Playing a Sound
• 2.4.3 Naming Values
• 2.5 Making a Program
• 2.5.1 Functions: Real Math-Like Functions That Take Input
• 3 Creating and Modifying Text
• 3.1 Strings: Making Human Text in a Computer
• 3.1.1 Making Strings from Strings: Telling Stories
• 3.2 Taking Strings Apart with For
• 3.2.1 Testing the Pieces
• 3.2.2 Taking String Apart, and Putting Strings Together
• 3.2.3 Taking Strings Apart with Indices
• 3.2.4 Mirroring, Reversing, and Separating Strings with Index
• 3.2.5 Encoding and Decoding Strings Using a Keyword Cipher
• 3.3 Taking Strings Apart by Words
• 3.4 What’s Inside a String
• 3.5 What a Computer Can Do
• 4 Modifying Pictures Using Loops
• 4.1 How Pictures Are Encoded
• 4.2 Manipulating Pictures
• 4.2.1 Exploring Pictures
• 4.3 Changing Color Values
• 4.3.1 Using Loops in Pictures
• 4.3.2 Increasing/Decreasing Red (Green, Blue)
• 4.3.3 Testing the Program: Did That Really Work?
• 4.3.4 Changing One Color at a Time
• 4.4 Creating a Sunset
• 4.4.1 Making Sense of Functions
• 4.5 Lightening and Darkening
• 4.6 Creating a Negative
• 4.7 Converting to Grayscale
• 4.8 Specifying Pixels by Index
• 5 Picture Techniques with Selection
• 5.1 Replacing Colors: Red-Eye, Sepia Tones, and Posterizing
• 5.1.1 Reducing Red-Eye
• 5.1.2 Sepia-Toned and Posterized Pictures: Using Conditionals to Choose the Color
• 5.2 Comparing Pixels: Edge Detection
• 5.3 Background Subtraction
• 5.4 Chromakey
• 5.5 Coloring in ranges
• 5.5.1 Adding a Border
• 5.5.2 Lightening the Right Half of a Picture
• 5.6 Selecting without Retesting
• 6 Modifying Pixels by Position
• 6.1 Processing Pixels Faster
• 6.1.1 Looping across the Pixels with Range
• 6.1.2 Writing Faster Pixel Loops
• 6.2 Mirroring a Picture
• 6.3 Copying and Transforming Pictures
• 6.3.1 Copying
• 6.3.2 Copying Smaller and Modifying
• 6.3.3 Copying and Referencing
• 6.3.4 Creating a Collage
• 6.3.5 General Copying
• 6.3.6 Rotation
• 6.3.7 Scaling
• 6.4 Combining Pixels: Blurring
• 6.5 Blending Pictures
• 6.6 Drawing on Images
• 6.6.1 Drawing with Drawing Commands
• 6.6.2 Vector and Bitmap Representations
• 6.7 Programs as Specifying Drawing Process
• 6.7.1 Why Do We Write Programs?
• 2 SOUND
• 7 Modifying Sounds Using Loops
• 7.1 How Sound Is Encoded
• 7.1.1 The Physics of Sound
• 7.1.2 Investigating Different Sounds
• 7.1.3 Encoding the Sound
• 7.1.4 Binary Numbers and Two’s Complement
• 7.1.5 Storing Digitized Sounds
• 7.2 Manipulating Sounds
• 7.2.1 Open Sounds and Manipulating Samples
• 7.2.2 Using the JES Media Tools
• 7.2.3 Looping
• 7.3 Changing the Volume of Sounds
• 7.3.1 Increasing Volume
• 7.3.2 Did That Really Work?
• 7.3.3 Decreasing Volume
• 7.3.4 Using Array Index Notation
• 7.3.5 Making Sense of Functions in Sounds
• 7.4 Normalizing Sounds
• 7.4.1 Generating Clipping
• 8 Modifying Samples in a Range
• 8.1 Manipulating Different Sections of the Sound Differently
• 8.1.1 Revisiting Index Array Notation
• 8.2 Splicing Sounds
• 8.3 General Clip and Copy
• 8.4 Reversing Sounds
• 8.5 Mirroring
• 8.6 On Functions and Scope
• 9 Making Sounds by Combining Pieces
• 9.1 Composing Sounds Through Addition
• 9.2 Blending Sounds
• 9.3 Creating an Echo
• 9.3.1 Creating Multiple Echoes
• 9.3.2 Creating Chords
• 9.4 How Sampling Keyboards Work
• 9.4.1 Sampling as an Algorithm
• 9.5 Additive Synthesis
• 9.5.1 Making Sine Waves
• 9.5.2 Adding Sine Waves Together
• 9.5.3 Checking Our Result
• 9.5.4 Square Waves
• 9.5.5 Triangular Waves
• 9.6 Modern Music Synthesis
• 9.6.1 MP3
• 9.6.2 MIDI
• 10 Building Bigger Programs
• 10.1 Designing Programs Top-Down
• 10.1.1 A Top-Down Design Example
• 10.1.2 Designing the Top-Level Function
• 10.1.3 Writing the Subfunctions
• 10.2 Designing Programs Bottom-Up
• 10.2.1 An Example Bottom-Up Process
• 10.3 Testing Your Program
• 10.3.1 Testing the Edge Conditions
• 10.4 Tips on Debugging
• 10.4.1 Finding Which Statement to Worry About
• 10.4.2 Seeing the Variables
• 10.4.3 Debugging the Adventure Game
• 10.5 Algorithms and Design
• 10.6 Connecting to Data Outside a Function
• 10.7 Running Programs Outside of JES
• 3 TEXT, FILES, NETWORKS, DATABASES, AND UNIMEDIA
• 11 Manipulating Text with Methods and Files
• 11.1 Text as Unimedia
• 11.2 Manipulating Parts of Strings
• 11.2.1 String Methods: Introducing Objects and Dot Notation
• 11.2.2 Lists: Powerful, Structured Text
• 11.2.3 Strings Have No Font
• 11.3 Files: Places to Put Your Strings and Other Stuff
• 11.3.1 Opening and Manipulating Files
• 11.3.2 Generating Form Letters
• 11.3.3 Reading and Manipulating Data from the Internet
• 11.3.4 Scraping Information from a Web Page
• 11.3.5 Reading CSV Data
• 11.3.6 Writing Out Programs
• 11.4 The Python Standard Library
• 11.4.1 More on Import and Your Own Modules
• 11.4.2 Adding Unpredictably to Your Program with Random
• 11.4.3 Reading CSV Files with a Library
• 11.4.4 A Sampling of Python Standard Libraries
• 12 Advanced Text Techniques: Web and Information
• 12.1 Networks: Getting Our Text from the Web
• 12.1.1 Automating Access to CSV Data
• 12.1.2 Accessing FTP
• 12.2 Using Text to Shift Between Media
• 12.3 Moving Information Between Media
• 12.4 Using Lists as Structured Text for Media Representations
• 12.5 Hiding Information ina Picture
• 12.5.1 Hiding a Sound Inside a Picture
• 13 Making Text for the Web
• 13.1 HTML: The Notation of the Web
• 13.2 Writing Programs to Generate HTML
• 13.2.1 Making Home Pages
• 13.3 Databases: A Place to Store Our Text
• 13.3.1 Relational Databases
• 13.3.2 An Example Relational Database Using Hash Tables
• 13.3.3 Working with SQL
• 13.3.4 Using a Database to Build Web Pages
• 4 MOVIES
• 14 Creating and Modifying Movies
• 14.1 Generating Animations
• 14.2 Working with Video Source
• 14.2.1 Video Manipulating Examples
• 14.3 Building a Video Effect Bottom-Up
• 15 Speed
• 15.1 Focusing on Computer Science
• 15.2 What Makes Programs Fast?
• 15.2.1 What Computers Really Understand
• 15.2.2 Compilers and Interpreters
• 15.2.3 What Limits Computer Speed?
• 15.2.4 Does It Really Make a Difference?
• 15.2.5 Making Searching Faster
• 15.2.6 Algorithms That Never Finish or Can’t Be Written
• 15.2.7 Why Is Photoshop Faster than JES?
• 15.3 What Makes a Computer Fast?
• 15.3.1 Clock Rates and Actual Computation
• 15.3.2 Storage: What Makes a Computer Slow?
• 15.3.3 Display
• 16 Functional Programming
• 16.1 Using Functions to Make Programming Easier
• 16.2 Functional Programming with Map and Reduce
• 16.3 Functional Programming for Media
• 16.3.1 Media Manipulation without Changing State
• 16.4 Recursion: A Powerful Idea
• 16.4.1 Recursive Directory Traversals
• 16.4.2 Recursive Media Functions
• 17 Object-Oriented Programming
• 17.1 History of Objects
• 17.2 Working with Turtles
• 17.2.1 Classes and Objects
• 17.2.2 Sending Messages to Objects
• 17.2.3 Objects Control Their State
• 17.3 Teaching Turtles New Tricks
• 17.3.1 Overriding an Existing Turtle Method
• 17.3.2 Working with Multiple Turtles at Once
• 17.3.3 Turtles with Pictures
• 17.3.4 Dancing Turtles
• 17.3.5 Recursion and Turtles
• 17.4 An Object-Oriented Slide Show
• 17.4.1 Making the Slide Class More Object-Oriented
• 17.5 Object-Oriented Media
• 17.6 Joe the Box
• 17.7 Why Objects?
• APPENDIX
• A Quick Reference to Python
• A.1 Variables
• A.2 Function Creation
• A.3 Loops and Conditionals
• A.4 Operators andRepresentation Functions
• A.5 Numeric Functions
• A.6 Sequence Operations
• A.7 String Escapes
• A.8 Useful String Methods
• A.9 Files
• A.10 Lists
• A.11 Dictionaries, Hash Tables, or Associative Arrays
• A.12 External Modules
• A.13 Classes
• A.14 Functional Methods
• Bibliography
• Index
• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Z