EXPLAIN RELATIONSHIP TOTAL PIXEL AND PICTURE RESOLUTION QUALITY

EXPLAINING BASICS VIDEO SIGNALBy Sarbini, S.Pd (SMK Muh 3 Yogyakarta)

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ELEMENT PICTURE

Image basically compiled from a group colour dots.

To understand one image, first principle is by divide an image become color dots by zooms in become many times overs so descry box.

Our brain automatically will reassemble that dot as one images.

But if enlarged to return, appear image different and seen there image shaper boxes. Image shaper dot composition

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On television or computer, this dot is called pixel (picture element) of the size horizontal dot total x vertical dot total.

E.g. display with 1024x768's rev pixel, its mean available 1024 horizontal dots for every 1 vertical dot. So total it there is 786.432 pictured patronising dots.

Because so dots quantity element picture, so picture is seen softer.

Smaller resolution (total pixel) so picture more seen coarse (less soft)

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MONITOR PIXEL

There 2 manners describes measures of one displays which is aspect ratio and screen size

Computer display or TV generally has one ratio aspect (compare of wide and display high) 4:3.

For widescreen having ratio's aspect 16:9( to feature DVD film that have widescreen's format, and HDTV'S System).

All type of display comprises projection surface, known as display (screen). Display measure normally been measured by unit inch, begun of one angle until corner of other cross diagonally.

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For crt screen, screen size is measured diagonally of steps aside body's extern display (coat most extern comes on to be measured).

For LCD'S display, display is measured diagonally from side in the frame (side outside doesn't come along to measures)

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Standard type Pixel Using up

XGA (Extended Graphics Array)

1024x768 15- and 17-inch CRT monitors15-inch LCD monitors

SXGA (Super XGA) 1280x1024 15- and 17-inch CRT monitors17-and 19-inch LCD monitors

UXGA (Ultra XGA) 1600x1200 19-, 20-, 21-inch CRT monitors20-inch LCD monitors

QXGA (Quad XGA) 2048x1536 21-inch and larger CRT monitors

WXGA (Wide XGA) 1280x800 Wide aspect 15.4-inch laptopsLCD displays

WSXGA+ (Wide SXGA plus)

1680x1050 Wide aspect 20-inch LCD monitors

WUXGA (Wide Ultra XGA)

1920x1200 Wide aspect 22-inch and larger LCD monitors

STANDARD DISPLAY REV OLUTION