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patch application operator
A patch application operator is a mathematical function used in adversarial machine learning and computer vision to superimpose an adversarial patch onto an input image. The operator accepts as inputs the patch pattern, a base image, a target spatial location, and optional transformations such as scaling, rotation, and lighting adjustments. It applies the specified transformations to the patch and overlays it onto the designated region of the image, replacing the original pixel values to produce a composite adversarial image. This operator is primarily utilized during attack generation and robustness evaluation to simulate real-world physical placements and train universal patches that remain effective across varying scenes, poses, and environmental conditions.
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