Overview Picture Elements General camera features Camera demo and download Image editing Picture samples – slide show

Picture Elements

General camera features

Camera demo and download

Image editing

Picture samples – slide show

Picture elements Long history of use in image creation Mosaics in ancient architecture Pointillist school of art Textiles Printing half tone pictures Electronic picture elements (pixels )

Long history of use in image creation

Mosaics in ancient architecture

Pointillist school of art

Textiles

Printing half tone pictures

Electronic picture elements (pixels )

6 th Century Italian Mosaics

19 th C. French Neo-impressionist painting The Pointillist School Image consists of small dots of paint Dots (pixels) made with point of brush as small as 1/16 inch Dots are unequal in size

Image consists of small dots of paint

Dots (pixels) made with point of brush as small as 1/16 inch

Dots are unequal in size

Other Pointillist works Georges Surrat Jean Volet M. Rysselberghe

Textile example – hand made stitchery

Image Printing Screen Photo screen can be course or fine Need black ink for single color Dots not equal size Eye reads dots as continuous tone image

Photo screen can be course or fine

Need black ink for single color

Dots not equal size

Eye reads dots as continuous tone image

Computer Picture Elements (Pixels) 36 blank pixels 36 colored pixels 2 pixel horiz line 2 pixel vert line 2 pixel diagonal You’ve got JAGGIES!

Low Resolution Computer Graphics Desktop icons are 32x32 Pixels, 1024 bytes

Image Resolution and File Size

24 and 32 bit color depth 24 bit = 3 bytes (the RGB model) 32 bit = 4 bytes (the CYMK model Red Green Blue Cyan Yellow Magenta Black Example (CorelDraw)

24 bit = 3 bytes (the RGB model)

32 bit = 4 bytes (the CYMK model

Example (CorelDraw)

Parameters of digital image quality Monitor dot pitch Monitor dots per inch Monitor calibration Screen resolution setting Monitor size Image resolution Color depth

Monitor dot pitch

Monitor dots per inch

Monitor calibration

Screen resolution setting

Monitor size

Image resolution

Color depth

Digital Cameras An exploding market Major camera makers now producing digitals Estimates of market to be 50% digital in 2002 Wide range of features and prices

An exploding market

Major camera makers now producing digitals

Estimates of market to be 50% digital in 2002

Wide range of features and prices

Canon Powershot G1 6 months on market 3.3 Mp sensor chip Under $1000 class Many features of satisfy beginners or experienced users High image quality

6 months on market

3.3 Mp sensor chip

Under $1000 class

Many features of satisfy beginners or experienced users

High image quality

Overview of mega-pixel cameras Type 1& 2 CF memory cards Full exposure control Resolution selection ISO selection Bright LCD screen External flash hot shoe Zoom capability Lens converters

Type 1& 2 CF memory cards

Full exposure control

Resolution selection

ISO selection

Bright LCD screen

External flash hot shoe

Zoom capability

Lens converters

LCD screen displays Record menu Play menu Setup menu

Image resolution/quality Small resolution 640x480 Fine compression Increases memory capacity Medium resolution 1078x760 Fine compression Good quality for prints or Net Large resolution 2048x1576 Fine compression Best quality for prints

Small resolution 640x480

Fine compression

Increases memory capacity

Medium resolution 1078x760

Fine compression

Good quality for prints or Net

Large resolution 2048x1576

Fine compression

Best quality for prints

ISO Selection Ability to vary “film speed” for lighting conditions ISO 50 ISO 400 G1is first digital to offer ISO 50

Exposure Mode Controls Auto (point & shoot) Program Shutter priority Aperture priority Manual setting

Auto (point & shoot)

Program

Shutter priority

Aperture priority

Manual setting

Exposure Bracketing Allows taking 3 shots at different exposures Bracket can be set in 1/3 stop increments Exposure range can be set to –2 to +2 stops - .7 stop Normal exposure +.7 stop

Allows taking 3 shots at different exposures

Bracket can be set in 1/3 stop increments

Exposure range can be set to –2 to +2 stops

White Balance WB corrects for different lighting conditions Controls on LCD from rear panel button

WB corrects for different lighting conditions

Controls on LCD from rear panel button

Zooming the image in LCD Feature allows close examination of image at 2 levels of zoom to check image details

Macro Mode This mode allows close-ups to 2.4 inches with normal lens at wide zoom Canon offers a macro lens attachment for closer macro images Normal mode Macro mode

This mode allows close-ups to 2.4 inches with normal lens at wide zoom

Canon offers a macro lens attachment for closer macro images

Play index Provides view of 9 thumbnails on screen Jump mode moves 9 thumbnails sequentially

Provides view of 9 thumbnails on screen

Jump mode moves 9 thumbnails sequentially

That is all folks, and thanks for watching