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Plotting PSNR (Peak Signal-to-Noise Ratio) against payload size to measure quality.

Based on the technical context often associated with such file identifiers in digital research, likely refers to a specific figure or data artifact within the domain of JPEG Reversible Data Hiding (RDH) and image compression research. 1_038.jpeg

Advanced algorithms use these metrics to determine which parts of an image can hide data with the least amount of visual distortion or "file expansion". 1_038.jpeg

A technique where a message is embedded into a JPEG image in such a way that the original image can be perfectly restored after the data is extracted. 1_038.jpeg