Transcript of Graphics and Video File Types, Uses and Attributes Please take notes!
- Slide 1
- Graphics and Video File Types, Uses and Attributes Please take
notes!
- Slide 2
- Picture/Drawing File Types There are two main ways computers
handle and create images. There are two main ways computers handle
and create images. The first are the bit-mapped file types. The
first are the bit-mapped file types. Programs using this type
include: Photoshop Windows Paint Painter Classic Photo Editor
- Slide 3
- File Formats - Bit
Mapped.jpg.jpg.tif.tif.bmp.bmp.png.png.raw.raw.gif.gif And many
others And many others
- Slide 4
- Bit-Mapped Bit mapped images tend to be large files. Bit mapped
images tend to be large files. Many types are not good for use on
the Internet because of their size. Many types are not good for use
on the Internet because of their size. Compression can be used to
reduce the file size of the image. Compression can be used to
reduce the file size of the image. Examples:.tiff, jpg, gif Some
compression schemes lose noticeable amounts of quality. Some
compression schemes lose noticeable amounts of quality.
- Slide 5
- Vector-Based Graphics Vector-based graphics are based upon
mathematical formulas. Vector-based graphics are based upon
mathematical formulas. These scale very well. Some printers such as
post-script printers use vector-based images to create fonts. CAD
programs are vector-based. Vector-Based images do well with line
drawings, but do poorly with photo- realistic images
- Slide 6
- Vector-Based Programs All CAD Programs All CAD Programs
Freehand Freehand Adobe Illustrator Adobe Illustrator Corel Draw
Corel Draw Appleworks Draw Appleworks Draw Google SketchUp Google
SketchUp
- Slide 7
- Vector-Based File
Types.eps.eps.swf.swf.ai.ai.cdr.cdr.dwg.dwg
- Slide 8
- Some Graphic File Types.bmp.bmp Huge file size. Image broken
down into pixels. Used for wallpaper, etc. in Windows.tif.tif High
quality large file size, even when compressed. Used for
printing.
- Slide 9
- Graphics files.jpg.jpg Used for the Internet. Heavily
compressed. Looks okay on-screen. Not so good for printing..gif.gif
Used for the Internet. Very heavily compressed. Limited color
depth. Can support transparent color and limited animation.
- Slide 10
- Graphics files When you compress a file and overwrite it you
lose detail that cannot be restored. When you compress a file and
overwrite it you lose detail that cannot be restored. A 5kb.jpg
balloons to 250kb when saved as a bit map with no increase in image
quality. A 5kb.jpg balloons to 250kb when saved as a bit map with
no increase in image quality.
- Slide 11
- Graphics Files Always keep in mind your end use when selecting
a file type. Always keep in mind your end use when selecting a file
type. Use graphics programs to translate from one file-type to
another by doing a Save As. Use graphics programs to translate from
one file-type to another by doing a Save As.
- Slide 12
- Video files Video files by their nature are rather large. Video
files by their nature are rather large. .avi offers best quality At
full resolution count on 1.5 gig/minute Files can be compressed
into one of several file types. Each has its own
advantages/disadvantages
- Slide 13
- Video Files Major file types Major file types .avi .mpg (mp1,
mp2, mp3, mp4) .wma .divix HCL (HD file type from Sony) HDV
Quicktime
- Slide 14
- Video Files Streaming vs. Downloadable Streaming vs.
Downloadable Streaming can be viewed but cannot be saved without
special software. Downloadable files take a great deal of time to
copy. .wma file types support both.
- Slide 15
- Streaming Video files Realplayer files are strictly streaming.
Realplayer files are strictly streaming. Windows Media Player files
can be either. It comes in both flavors. Windows Media Player files
can be either. It comes in both flavors. Flash and Shockwave are
strictly streaming. Flash and Shockwave are strictly
streaming.
- Slide 16
- Non-Streaming Video Files These copy to your hard drive before
playing: These copy to your hard drive before playing: .avi Used
for full-resolution applications such as editing. Can be used in
PowerPoint. .mpg Used for compressed video. Has many variations.
Can be edited but it is not recommended. .wma Windows Media Player.
Can be used in PowerPoint. Offers different compression
levels.
- Slide 17
- Video Files DIVIX DIVIX Often used for movies Files highly
compressed Students like these files Player software used to be
free and widely available. Now most charge. Runs on Laptops and
portable devices
- Slide 18
- Video Files.VOB Used for DVDs - Video object file..VOB Used for
DVDs - Video object file. Special players can be used to play this
file type such as WinDVD. Special players can be used to play this
file type such as WinDVD. These files can also be edited. These
files can also be edited.
- Slide 19
- High Definition Video There are video formats that were created
specifically for HD. There are video formats that were created
specifically for HD. HCL HDV Others have been adapted for HD Others
have been adapted for HD AVI MP4/Quicktime
- Slide 20
- High Definition Video Special software may be needed to reduce
HD footage to SD. Special software may be needed to reduce HD
footage to SD. Some editing software may reduce the image quality
to fit on a standard DVD disc, but the format remains in HD. Some
editing software may reduce the image quality to fit on a standard
DVD disc, but the format remains in HD. This may cause
compatability issues. HD DVDs are Blu-Ray. HD DVDs are
Blu-Ray.
- Slide 21
- Next Class We will have a worksheet about graphics and video
files. We will have a worksheet about graphics and video files. You
may use your notes from today and the Internet. You may use your
notes from today and the Internet.