MTL005 查看數據表（PDF） - Myson Century Inc

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产品描述 (功能)

生产厂家

MTL005

XGA Flat Panel Controller

Myson Century Inc 

MYSON

TECHNOLOGY

MTL005

Rev 0.9

3.2 Video Processor

General Description

MTL005 possesses a powerful and programmable video processor by providing the following functions:

Scaling Up/Down, Gain Control, Brightness Control, Gamma Correction, Dithering Control, and Flip & Mirror.

The block diagram of Video Processor is as follows:

FLIP/MIRROR

SCALING

GAIN

BRIGHTNESS

GAMMA

DITHERING

Scaling Factor

Transition Table

Gain Factor

Brightness Factor

Gamma Table

Dithering Table

Fig. 3.2.1 Video Processor Block Diagram

3.2.1 Scaling

MTL005 provides scaling function up ranging from 1 to 32, and for both horizontal and vertical processing.

For scaling up, both horizontal and vertical processing, MTL005 provides four methods:

¨ Pass Mode: Image will be passed through without considering any scaling factor.

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

from the input. In this method, Output image will have the good contrast but may be non-uniformed.

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

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

blurred.

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

data will be filtered by user defined filter.

Revision 0.9

-8-

2000/12/29

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