Digital Video - PowerPoint PPT Presentation

Loading...

PPT – Digital Video PowerPoint presentation | free to view - id: 7d243e-OWJlY



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Digital Video

Description:

Digital Video Representing video An array of images Movie = video + audio How big is a movie Frames (pictures) per second 32 FPS faster than human eyes 24 FPS - OK 10 ... – PowerPoint PPT presentation

Number of Views:25
Avg rating:3.0/5.0
Slides: 14
Provided by: DanR55
Category:
Tags: digital | editing | video

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Digital Video


1
Digital Video
2
Representing video
  • An array of images
  • Movie video audio

3
How big is a movie
  • Frames (pictures) per second
  • 32 FPS faster than human eyes
  • 24 FPS - OK
  • 10 FPS - a little jerky
  • How big is a frame
  • This screen 1024x768
  • TV - 640 x 480

4
How big?
  • 640 x 480 x 10 minutes
  • 307,200 x 600 sec x 32 fps
  • 5.9 billion pixels x 3 (RGB)
  • 17 billion pixels
  • Audio - 48000 x 10 min x 60 sec/min x 2
  • 58 million bytes
  • Compression (reduce the size)

5
Video Standards
  • NTSC - American Television
  • Mostly black and white with a little color added
  • 460x360
  • VHS - video tapes
  • Cheat a lot on the color
  • 300x360
  • DVD - 720x480
  • HDTV - High definition TV
  • 1920x1080

6
Video Standards
  • Digital video
  • MPEG
  • Quicktime
  • AVI
  • PAL - European standard
  • More lines, better color

7
Basic video editing in Premiere
  • Project
  • A collection of clips and cuts of audio and video
  • Import
  • Bringing in clips
  • Tools
  • Timeline
  • Select
  • Razor
  • Export Timeline
  • Generate an edited movie

8
Starting Premiere
  • Select the resolution and rate for your work

9
Pieces of Premiere
10
Import
  • Bringing clips into the project
  • Movie clips
  • Audio files (from CoolEdit or elsewhere)

11
Creating a movie
  • Drag clips onto the Timeline
  • DEMO

12
Editing
  • Razor tool
  • Cuts clips into two pieces so that each can be
    used independently
  • Select
  • Select and moves a clip
  • Delete key
  • Removes clips from the time line

13
Timeline
  • How does the timeline relate to the video and
    audio array?
  • Each point on the timeline corresponds to an
    index in each of the arrays
  • Not necessarily the same index
About PowerShow.com