Which product photos merit an upscaler credit: a test of eight enlargement methods

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Free upscaler tiers are metered, so a solo seller must decide which photos justify a credit. The author enlarged three test images, a portrait, a landscape and a self-made text page, down to 512 or 256 pixels and back to 1024, then scored eight methods against the originals. Mostly empty frames such as sky left little for any model to recover, while fine eyelashes and small type separated the methods more clearly. On the text page a GAN-based tier scored lowest on small type despite looking sharpest, and its redrawn strokes make it unsuitable for reading batch codes or prices. Images with hairlines or dense small text should instead be re-exported at the size actually needed.

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