Defect Generator

Base class for all defect generators used by the Randomize Defects command.

Remarks

The DefectGenerator class provides a common interface and shared logic for all types of artificial defect generators used in the Randomize Defects command. Each subclass implements a specific type of image artifact, such as noise, skew, border, scaling, or alignment shift.

• Each generator can be enabled or disabled independently.
• The 'Defect Probability' property controls the likelihood that the defect will be applied to a given image.
• Subclasses define additional properties to configure the severity and characteristics of the defect.

Defect generators are applied in a fixed order (alignment, border, noise, scale, skew) if enabled. This allows you to simulate a wide range of real-world scanning artifacts for robust testing of image cleanup workflows.

Properties

Name	Type		Description
Defect Probability	Double	►	The probability that a defect will be applied to any given image. ConverterPercent Converter Default100% Specifies the likelihood (from 0.0 to 1.0) that this defect generator will be executed for a given image. A value of 1.0 means the defect is always applied; 0.0 means it is never applied. Use to control the frequency of simulated defects in your test set. Typical values are 0.5 (50% chance) or 1.0 (always). Example: To apply noise to half of your test images, set 'Defect Probability' to 0.5.

Derived Types

There are 5 implementations of Defect Generator.

Border Generator	Adds random black borders to an image to simulate edge artifacts.
Image Scaler	Randomizes small variances in image scaling to simulate photocopying or faxing artifacts.
Image Skewer	Applies a random skew (rotation) to the image to simulate misaligned scanning.
Image Translator	Randomizes small variances in image alignment to simulate misfeeds or misalignment.
Noise Generator	Adds random black specks to an image to simulate noise.