> The high frequency information is *gone* diminished in power. It's only *gone*... | Hacker News

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radarsat1 on May 31, 2020 | parent | context | favorite | on: Image Scrubber: tool for anonymizing photographs t...

> The high frequency information is gone

diminished in power.

It's only gone if it goes below the quantization threshold. Depends on the filter.

okamiueru on June 1, 2020 [–]

True. I think the reasonable assumption would be a low-pass filter that removes high frequencies altogether. A gaussian filter wouldn't be a particularly good idea.

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