本書第一章介紹多媒體技術(shù)的基礎知識，包括相關概念和常用的多媒體素材；第二章介紹數(shù)字圖像處理的相關知識，包括數(shù)字圖像的成像原理、數(shù)字圖像的修正、美化、摳圖、數(shù)字圖像的合成；第三章介紹數(shù)字音頻處理的相關知識，包括音頻的基礎知識、音頻的錄制、音頻的剪輯、音頻的特效處理；第四章介紹數(shù)字視頻處理相關知識，包括視頻的基礎知識、視頻制作素材的編輯、視頻特效和字幕的添加、視頻的輸出；第五章以PowerPoint軟件為例介紹多媒體平臺軟件相關知識，包括多媒體平臺軟件的種類及作用，多媒體素材在PowerPoint軟件中的基本運用，PowerPoint作品設計的基本技巧。
PrefaceMultimedia technology is a comprehensive product of both computer technology and social needs. In the early stages of computer development, people used computers to solve numerical computing problems in military and industrial production. With the development of computer technology, especially the development of hardware equipment, people began to use computers to process and represent images and graphics, so that computers can reflect natural things and calculation results in a more vivid way.This textbook strives to combine basic theory and practical operation, focusing on cultivating the processing ability and material application ability of multimedia materials. There are five chapters and the main content includes the basic knowledge of multimedia technology, digital image processing, digital audio processing, digital video processing, and taking PowerPoint software as an example to introduce the related knowledge of multimedia platform software. This book is written by Li Ting, Lv Jianhong, Wang Yinlong, and translated by Liu Xiaofei, Wu Jie, Zhang Ying, Peng Qi, Liu Ling, and Wang Huan. Chapter One, Chapter Two, and Chapter Three are written by Li Ting. Chapter Three is written by Li Ting and Wang Yinlong. Chapter Five is written by Lv Jianhong. Chapter One is translated by Liu Ling. Chapter Two and Chapter Five are translated by Liu Xiaofei. Chapter Three and Chapter Four are translated by Wu Jie. Zhang Ying, Peng Qi, and Wang Huan are responsible for the amendment.Grateful thanks to the leaders and professors who have provided valuable guidance and help in the process of compiling and translating this book.This book is an application-oriented textbook that teaches profound knowledge in a simple way, focusing on application, and ability cultivation. Due to the limited knowledge of editors and translators, mistakes and flaws are inevitable in the compilation and translation. Readers are welcome to make comments and corrections.Textbook compilation group of Multimedia Technology Basics
CONTENTS
Chapter 1 Preliminary Study on Multimedia Technology
Section 1 Multimedia Technology and Multimedia System
I. Media
II. Multimedia
III. Multimedia Technology
IV. Multimedia System
Section 2 Basic Elements of Multimedia Information
I. Text
II. Graphic
III. Image
IV. Audio
V. Video
VI. Animation
Chapter 2 Digital Image Processing
Section 1 Basic Knowledge of Digital Image
I. Digitalization of Image
II. Basic Properties of Images
III. Color Principle of Image
IV. File Format of Image
Section 2 Image Correction
I. Basic Editing Process of Digital Photos
II. Correction of Deformation and Secondary Composition
III. Adjust Size and Resolution
IV. Correct Exposure
V. Adjust Color
VI. Enhance Image Clarity
Section 3 Image Beautification
I. Stamp Clone
II. Restore Texture
III. Beautify the Details
Section 4 Establishment of Selected Area
I. Rectangular Marquee Tool Group
II. Lasso Tool Group
III. Quick Selection Tool Group
Section 5 Multiple Layer Blending
I. Draw Shapes
II. Input Text
III. Layer Blending
IV. Layer Style
Chapter 3 The Operations of Digital Audio Frequency
Section 1 The Fundamental Knowledge of Audio
I. The Fundamental Knowledge of Sound
II. The Digitization of Sound Signal
III. The Storage of Audio File
Section 2 Sound Recording and Noise Reduction
I. Sound Recording
II. Sound Editing
III. The Noise Reduction of Audio File
Section 3 Sound Editing and Synthesis
I. The Adjustment of Sound
II. Sound Synthesis (supplement)
Section 4 The Special Effect Processing of Sound
I. Adding Echo (Supplement)
II. Adding Reverb Effect (Supplement)
III. Adjustment of Pitch
Chapter 4 Digital Video Processing
Section 1 Fundamental Knowledge of Video Frequency
I. Analog Video and Digital Video
II. Linear Editing and Non-linear Editing
III. Digitalization of Audio Signal
IV. Digital VideoFile Format
Section 2 The Basic Editing Procedures of Video Footage
I. Obtaining Footage
II. Editing the Footage
III. Adding Transition
Section 3 The Operation of Special Effect of Video
I. Adding Filter
II. Picture-in-picture Effect
III. The Processing of Blue Curtain
Section 4 Adding Subtitles
Section 5 Saving and Output
I. Saving
II. Video Output
Chapter 5 The Application of Materials on PowerPoint of Multimedia Platform
Section 1 Introduction to Multimedia Platform Software
I. Types of Multimedia Platform Software
II. Functions of Multimedia Platform Software
Section 2 Insertion and Editing of Materials
I. Image Material
II. Audio Material
III. Video Material
IV. Comprehensive Applications of Materials
Section 3 Slide Design
I. Frame Design
II. Page Design
III. The Way of Design for Beginners
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