MTL002 Просмотр технического описания (PDF) - Myson Century Inc

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производитель

MTL002

XGA Flat Panel Controller

Myson Century Inc 

MYSON

TECHNOLOGY

MTL002

(Rev. 0.95)

3.2 Video Processor

General Description

MTL002 possesses a powerful and programmable video processor by providing the following functions:

Scaling Up, Gain Control, Brightness Control, Gamma Correction, and Dithering Control.

The block diagram of Video Processor is as follows:

Fig. 3.2.1 Video Processor BlockSDciaalginragmFactor

3.2.1 Scaling

SCALING

Interpolation Table

MTL002 provides scaling function ranging from 1 to 32 for up scaling, and for both horizontal and vertical

GAIN

Gain Factor

BRIGHTNESS

Brightness Factor

GAMMA

Gamma Table

DITHERING

Dithering Table

processing. For scaling up, both horizontal and vertical processing, MTL002 provides four methods:

¨ Pass Mode: Image will be passed through without taking scaling factor into account.

¨ Duplicate Mode: Image will be scaled up based on the scaling factor. Every point of output image

comes from the input. In this method, the output image will have a good contrast but the picture could be

non-uniformed.

¨ Bilinear Mode: Image will be scaled up based on the scaling factor. Every point of output image data

will be filtered by bilinear filter. In this method, the output image will have a good scaling quality but the

picture could be blurred.

¨ Interpolation Table Mode: Image will be scaled up based on the scaling factor. The user-defined filter

will filter every point of output image data. In this mode, every output point is calculated based on the 3

input points.

Input pixels:

Output pixels:

Revision 0.95

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- 10 -

2000/06/14

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