Graphics Programs Reference
In-Depth Information
Fit : This can be used to fit the distorted image to a size that covers the empty
pixels created due to distortion. Since this resizes the pixels to fit within the
resolution, a higher distortion value can show a pixelated image.
All these options can be used in cohesion to obtain multiple lens distortion effects,
thus simulating a real world lens and adding more realism to the image.
The following screenshot illustrates the effects that can be obtained using this node.
Observe the black/empty pixels created at the bottom corners due to distortion of the
perspective.
The Despeckle node
The Despeckle node simulates an effect of shattering the pixels. Threshold can be
used to limit the effect based on the luminance of the image. Alternatively, a gray-
scale image can be connected to factor input to control the effect of the Despeckle
node, as shown in the following screenshot:
The Filter node
The Filter node implements various image enhancement filters, producing a variety
of image distortion effects. The following is a list of filter types available in this node,
followed with a screenshot:
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