How are Images Compressed? [46MB ↘↘ 4.07MB] JPEG In Depth

You've probably saved 1000s of JPEG images, but do you know what exactly JPEG does?  Our smartphones and cameras save images in JPEG format, furthermore, the majority of images you see on the internet are saved using JPEG compression.  This format is everywhere, but do you know exactly how it works?  Well in this video we're going to explore the JPEG compression format.  This is a rather complicated video, so it may take watching it a few times through to understand it all.

Table of Contents:

00:00 - Intro into JPEG

01:24 - What does JPEG do?

02:35 - What are the Steps of JPEG?

04:06 - Color Space Conversion

06:06 - Discrete Cosine Transform

09:32 - Quantization

11:02- Run Length and Huffman Encoding

12:04 - H.264 Video Compression

13:25 - Rebuilding an Image

15:01 - Notes and Caveats on JPEG

17:06 - Sponsored by Brilliant

18:20 - Outro

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