The Math Behind JPEG | Complete Visual Guide
📚 What You'll Learn:
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00:00 - Introduction
00:45 - RGB to YCbCr Color Space Conversion
02:15 - Chroma Subsampling (4:2:0)
03:30 - 8×8 Block Splitting
04:45 - Discrete Cosine Transform (DCT)
06:30 - Quantization (The Lossy Step)
08:00 - Zigzag Scanning
09:15 - Entropy Encoding (RLE + Huffman)
10:30 - Complete Recap
🔑 Key Concepts:
• Why YCbCr separates brightness from color
• How human vision limitations enable 50% data reduction
• The mathematical magic of DCT energy compaction
• Why quantization creates artifacts at low quality
• How zigzag ordering optimizes compression