Digital Video Editing

25
Digital Video Editing Department of Computer Education KMUTNB

description

Digital Video Editing. Department of Computer Education KMUTNB. Video Editing. Capturing and Importing Source Clips. Source material exists in two main forms: - PowerPoint PPT Presentation

Transcript of Digital Video Editing

Digital Video Editing

Department of Computer EducationKMUTNB

271430 2

271430 3

VideoVideo EditingEditing

271430 4

271430 5

Capturing and Importing Source

ClipsSource material exists in two main forms:

• Digital media is stored in a file format that a computer can read and process directly. All digital-video (DV) camcorders and decks record video and audio in digital format.

• Analog media must be digitized, or converted to digital form, before a computer can store and process it.

271430 6

Understanding offline and online editing

•Online editing is the practice of doing all editing (including the rough cut) on the same clips that will be used to product the final cut.

• In offline editing, you edit video using low-quality clips and produce the final version using high-quality clips on a high-end system.

271430 7

Connecting the analog video source

271430 8

Connecting the analog video source

271430 9

Connecting the DV video source

IEEE1394 (FireWire/i.Link).

271430 10

271430 11

Connecting the DV video source

IEEE1394 (FireWire/i.Link).

271430 12

Video Resolution

271430 13

NTSC & PAL

271430 14

Aspect Ratio

Pixel aspect ratio specifies the ratio of width to height of one pixel in an image.

271430 15

Aspect Ratio

271430 16

Setting pixel aspect ratio

• Square Pixels Uses a 1.0 pixel (640 x 480 or 648 x 486)

• D1/DV NTSC Uses a 0.9 pixel (720 x 480 or 720 x 486)• D1/DV NTSC Widescreen Uses a 1.2 pixel (720 x 480

or 720 x 486) result is a 16:9 frame• D1/DV PAL Uses a 1.0666 pixel(720 x 576) result is a

4:3 frame• D1/DV PAL Widescreen Uses a 1.4222 pixel (720 x

576) result is a 16:9 frame• D4/D16 Standard Uses a 0.9481481 pixel (1440 x

1024 or 2880 x 2048) result is a 4:3 frame

271430 17

Transitions •The visual change from one

clip to another is called a transition.

271430 18

Image Mask

271430 19

Gradient Wipe transition

271430 20

Creating Titles• The safe zones indicated by

Premiere represent only NTSC video and are only guidelines for other video standards such as PAL or SECAM.

271430 21

Alpha Channel key

• An alpha channel is a fourth channel in an RGB image that defines what parts of the image are transparent or semitransparent.

271430 22

Garbage mattes• Sometimes the subject of a

scene is properly keyed except for undesired objects. Use a garbage matte to mask out those objects. You can then place the keyed subject in another scene for simple effects.

271430 23

Animating a Clip•Animate a clip by creating a

motion path in the Motion Settings dialog box.

• rotation, zooming, delays, and distortion

271430 24

Exporting video from Premiere

File types available for export• Video formats Microsoft AVI, Animated GIF,

QuickTime, MPEG, RealMedia, Windows Media, DV

• Audio-only formats AIFF, MP3, and Windows Audio Waveform

• Still-image and sequence formats Filmstrip, FLC/FLI (Windows only), GIF sequence, PICT and PICT sequence (Mac OS only), Targa and Targa sequence, TIFF and TIFF sequence, Windows Bitmap and Windows Bitmap sequence

271430 25