HDCBC Lesson 9: An Overview to Image Compression

In this lesson you'll learn all about compression, why compression is important and why you need to understand it. We'll cover lossless vs. lossy compression and the implications of adjusting various parameters. We'll also touch upon balancing compression against quality and speed. Finally, we'll look at artifacts, generation loss, metadata and how it affects media file sizes. 0:00 - Intro 1:08 - A picture is worth a million words 1:45 - Lossy vs Lossless 4:19 - Lossless compression: format features 6:12 - Lossless image compression: speed vs compression 8:03 - Sometimes useful for delivery too! 8:50 - Huffman entropy coding 9:57 - ANS and Arithmetic coding 10:15 - Run-length encoding (RLE) 10:55 - LZ77 encoding 11:48 - Prediction (filtering) 12:34 - Reversible color transforms (RCT) 13:09 - Context modeling 13:53 - Lossless image compression techniques 14:10 - Discrete Cosine Transform (DCT) 16:50 - Color transform 18:01 - Compression artifacts 22:03 - Variable block sizes 22:50 - Adaptive quantization 23:26 - Deblocking filters 24:18 - “Quality” 28:40 - Lossy image compression: visual quality vs compression 30:27 - Lossy image compression: encode speed 31:23 - So… which format to use? 33:48 - End ======================================== Cloudinary https://cloudinary.com/ Jon's Lesson 5: An Introduction to Image Formats https://www.headlesscreator.com/path-player?courseid=headless-dam-with-cloudinary-bootcamp&unit=6352adc89cc36144582eebbbUnit An Interview with Jon Sneyers about Image Formats https://www.headlesscreator.com/path-player?courseid=headless-dam-with-cloudinary-bootcamp&unit=634ed6f6482197379b2898e5Unit Headless DAM with Cloudinary Bootcamp and Bonus Material https://www.headlesscreator.com/course/headless-dam-with-cloudinary-bootcamp Liked what you saw? Why not register for a Free Account to discover all the free courses on Headless Creator. https://www.headlesscreator.com/ Sign up for our newsletter that focuses on everything Headless CMS and delivered directly to your inbox. https://www.headlesscreator.com/subscribe-to-our-newsletter ========================================

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