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本書第一章介紹多媒體技術(shù)的基礎(chǔ)知識，包括相關(guān)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(guān)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(guān)知識，包括音頻的基礎(chǔ)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(guān)知識，包括視頻的基礎(chǔ)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(guān)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(shè)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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