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Image Processing

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Nikon re-evaluates Small World contest winner over AI manipulation claims

Nikon is reviewing the winning video in its Small World In Motion microscopy contest after scientists alleged it was partly AI-generated. The clip, submitted by Dr Ning Xu of Tsinghua University, purports to show cilia moving in a child's airway, but critics flagged structures appearing and vanishing oddly and a possible AI-generation watermark on the source image. Xu has denied breaking contest rules, acknowledging AI was used only to enhance grayscale images, not to generate the cilia or their motion.

Blog post explains drawing shapes like a llama using Fourier epicycles

A technical blog post walks through how the Fourier transform can be used to reconstruct a hand-drawn path, such as a llama, by summing rotating vectors (epicycles) of different frequencies, radii, and starting angles connected tip to tail. The author shows progressively complex examples, from a straight line and square to a fish, culminating in a llama drawn using 1024 circles.

Apple to give iPhone 18 Pro users more control over photo processing

Apple is reportedly shifting its iPhone camera strategy toward giving users more manual control over how photos are processed, rather than relying solely on automatic computational adjustments. The change is expected to arrive with the iPhone 18 Pro, allowing photographers greater flexibility in shaping the final look of their images.