User Manual

Instruction Manual

Video Menu

There are three functions available under the Video menu: Auto ne-tune picture, Video Settings

and Save PNG snapshot.

Auto ne-tune picture

Use to automatically adjust the sampling phase of the video. This makes the picture sharper and

reduces USB trac. This is generally not required since this operation is automatically performed

when video is applied. The picture will freeze for about one second while the calibration is

performed.

Settings

Picture Positioning

These four arrows may be used to ne-tune the

position of the video image. These are the same as

the centering controls found on video monitors. Save

your changes with the Save button. The adjusted

values will be used automatically whenever this

same video mode is seen again. The Auto button

will attempt to automatically center the video image

within the program window.

Sampling Phase (Sharpness)

This slider allows you to override the automatic phase

adjustment. Press Auto to perform auto phase again.

The numbers shown under the slider are the phase

(angle) of the control.

Noise Filters

The hardware implements two lters to reduce USB trac and improve picture quality. By

default they are both enabled and set to one. You may override and save customized settings

(which will apply to all video modes).

The rst ‘Noise’ lter helps to remove speckle noise. There is usually no visual eect to this lter,

except that at high values, moving the mouse may leave some pixels behind.

The second ‘Flatness’ lter converts regions that are nearly all the same colour into exactly the

same colour to aid compression. At higher values, color banding will be much more visible.

Save PNG snapshot

Use this function to record a copy of the window contents and save it into a PNG, JPG or BMP le.

The snapshot happens as soon as the menu item (or toolbar ) is clicked. You are then given

a chance to choose where the image le should be stored. A default lename is provided based

on the current time.

Snapshots are always stored at full resolution and contain the whole screen.