put word 1 of the short name of this card into maploc
put word 2 of the short name of this card into cardloc
end closecard
-- part 18 (button)
-- low flags: 00
-- high flags: 0000
-- rect: left=128 top=100 right=117 bottom=215
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: New Button
----- HyperTalk script -----
on mouseUp
go cd "gloassary 2"
end mouseUp
-- part contents for background part 9
----- text -----
Macintosh Display Card 4•8 and 8•24
-- part contents for background part 11
----- text -----
tech2
-- part contents for background part 4
----- text -----
Technology
-- part contents for background part 5
----- text -----
Convolution* is a formula that averages a pixel with the neighboring pixels that reside above and below it.
Convolution causes a blurring effect between scan lines so that any horizontal line contains at least a portion of the scan lines above and below it. A portion of the horizontal line remains visible to avoid flicker on interlaced displays.
The convolution formula follows a 1:2:1 ratio where the current pixel has twice the weight of its neighbors.