December 6, 2022

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PPI is Imaginary! PPI vs DPI vs Resolution

2 min read

Does changing the PPI really increase or decrease the image quality? How is DPI different from PPI? What actually is Resolution? In this lesson, we will answer all these questions, understand the difference between PPI, DPI, and Resolution, and delve deeper into what they actually mean with the help of fun examples, experiments, and a little bit of math. I hope you enjoy this video. Thank you so much for watching 🙂

00:00 Why PPI Doesn’t Make Sense?
03:19 What is Pixel?
04:09 Cameras and Resolution
05:52 What is the Length of a Pixel?
07:02 Is PPI Imaginary?
08:14 When PPI Makes Complete Sense
12:15 What is DPI?
12:58 Why Experiments are Important
13:36 Further Reading

► ARTICLE: “PPI vs. DPI: what’s the difference?” by Colette Pomerleau:

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