I believe this is done automatically by some software process and would appreciate any ideas about how it's done. Thanks.
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Thanks for the quick reply. I understand that it's done with a filter. What I am looking for is a technical explanation of what software is used and how it works.
I have a wild guess. Maybe they conclude whether an image is pixelated or not through its dimensions. It's more likely for a 100x100 px image to pixelate if used in Hubbages compared to those with 1000x1000 or more dimensions.