Generate Impulse

Menu:   Processing > Generate… > Noise

Script:   genImpulse

Use this command to generate a random impulse noise and superimpose it on an image. You can choose the maximum intensity level of the noise and its average spatial density. If the image is a color one, the noise will be generated independently for each color component.

If you choose this command, the following options will become available:

Input

Displays the input image frame number. If you want to apply impulse noise to another image, type or select the corresponding value.

Output

Displays the number of the frame in which the output image will be created. Depending on the Preferences. ImageWarp will set it either to the first available value or to the Input frame number. Type or select another value if you want the output image to be created in a different frame.

Level – the maximum level of the noise. This value is given in percentage of the maximum pixel value for the current image type.

Density – the spatial density of the noise in relative units.

Preview

Select this check box to watch the Preview of the output image.

Level

Lets you indicate the maximum level of noise impulses. The actual intensities of the impulses are randomly distributed between -Level and +Level.

Density

Lets you adjust the average spatial density of the noise in relative units. The coordinates of noise impulses are randomly distributed over the image or selection area.

Also see Also see Noise