This directory contains a demonstration of the perceptual hash functionality used by Reddit Deduplicator to detect duplicate thumbnails. Try it out at https://nickgaya.github.io/rededup/phdemo/.
To use the demo, select one or more image files to open using the file chooser. The images will be added to the table along with visualizations of the perceptual hash functions.
To compare hash values, select an image by clicking a radio button in the "Compare" column. The other rows will be updated to compare their hash values with the selected row. To clear comparison information, click the radio button in the header row.