Display and Resolution

Aspect Ratio: Is an indicator of the proportional relationship of the width to the height of the screen and is depicted with the expression x:y, where x equals the number of units wide and y is equal to the number of units high. The aspect ration remains constant even though the display screen may vary.

What are the aspect ratios for the following formats?

10" tablet (9.7" display)- 4:3

Smartphone (4.7" display)-  16:9

Leaderboard Ad- 728:90 (pg.285 in textbook)

HDTV 16:9 -  16:9

Interlaced Scanning: Raster scanning that minimizes both bandwidth and flickering. Each frame of an image is captured with two parts, odd line appearing first followed by even lines second.

Interlaced Scanning

Progressive Scanning: Consecutively scanning the lines of the picture from top to bottom, just as you would type on a typewriter. This help combat eyestrain, which is why it's a given on computer monitors.

Progressive Scanning