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# Sir, there's a cat in your mirror dimension

**[Lobsters](https://daily.dev/sources/lobsters)** · 3 min read · 1 upvotes · 0 comments

## Summary

The article discusses the frequency domain transform and its reversibility, the use of the discrete cosine transform in compositing images, and the impact of lossy compression on images.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://lcamtuf.substack.com/p/sir-theres-a-cat-in-your-mirror-dimension>

---

Tags: [#math](https://daily.dev/tags/math), [#image-processing](https://daily.dev/tags/image-processing)

[View this post on daily.dev](https://daily.dev/posts/sir-there-s-a-cat-in-your-mirror-dimension-soyzacwno)

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