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### DEMO1:

->

Step one : Run V.I.P.Scilab and open the image 'horce.jpg'

There are three methods for you to open the image, you can choose any one of them if you like:

• Click the button [open]

• Click the menu [File]->[Open]

• Use the hot key <Ctrl + O>

The follow graphic shows the first method mentioned above.

Step two: Change the image to GRAYSCALE image

Click menu [Image]->[Mode]->[GRAY Color] on the main window, and you will see the

truecolor image changed into a grayscale image showed like:

Step three : perform edge detection

Click menu [Filter] -> [Edge and Border] ->[Edge detection] on the main window, and the ¡°edge detection¡± window will jump up

Set the parameter data as the following graphic shows and click [preview] to get a view of the processed picture, then you can see it's the effect that we want it to be. Greatful ! Now what you should do is just to press the button [OK].

Step four : Save the processed image

There are also three methods for you to save the image, you can choose any one of them if you like:

• Click the button [Save]

• Click the menu [File]->[Save] or [File]->[Save as ¡]

• use the hot key <Ctrl + S> or <Ctrl + Shift + S>

The follow graphic shows the first method mentioned above.

### DEMO2 :

->

Step one : Run V.I.P.Scilab and open the image ' onca.jpg'

There are three methods for you to open the image, you can choose any one of them if you like:

• Click the button [open]

• Click the menu [File]->[Open]

• Use the hot key <Ctrl + O>

The follow graphic shows the first method mentioned above.

Step two :negate all pixels above the threshold level

Click menu [Filter]->[Special Effect]->[Color Change] on the main window, and a new window will jump up:

Choose the ¡°Solarize¡± operation and set the date 0.0 , press the button [Preview] to get a direct view of the processed picture.

That is just OK, then press the button [OK], and you will find how ScilabGraphic window shows:

Step three :alter the image along a sine wave

Click menu [Filter]->[Special Effect]->[Special Effect] on the main window, and a new window will jump up:

Choose the ¡°Wave¡± operation and set the date as the value show bellow, then press the button [Preview] to get a direct view of the processed graphic.

Great! That is just the effect that we want, now press the button [OK].

Step four : save the image processed.

There are also three methods for you to save the image, you can choose any one of them if you like:

• Click the button [Save]

• Click the menu [File]->[Save] or [File]->[Save as ¡]

• use the hot key <Ctrl + S> or <Ctrl + Shift + S>

The follow graphic shows the first method mentioned above.

'Special Effect' window:

The above window is different from Filter-window and video-window. It appears only under Linux , because the function 'mogrify' can now be used only under Linux. It appears when we click menu [Filter]->[Special Effect]->[Special Effect] .

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