Joan León Read the Original Article in English
This comprehensive guide about JPEG compression was originally written by Christoph Erdmann and is available in English on his website.
→ Finally understanding JPG (compress-or-die.com)
The Spanish version on this blog is a translation I made to make this excellent technical content accessible to Spanish-speaking readers.
What You’ll Learn
The original article provides an in-depth technical explanation of:
- How JPEG compression works at a fundamental level
- The DCT (Discrete Cosine Transform) process
- Chroma subsampling and its impact on image quality
- Quantization and how it affects file size
- Practical optimization techniques for web images
It’s one of the most comprehensive and well-illustrated guides to understanding JPEG compression available online.