Image Compression Visualizer

Overview

The Image Compression Visualizer demonstrates lossy and lossless compression techniques. Apply JPEG-style DCT compression, PNG-style deflate, or quantization and see compression ratios vs quality trade-offs. Perfect for understanding data compression, DCT transforms, and quality metrics.

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Tips

  • JPEG uses DCT (Discrete Cosine Transform) for lossy compression
  • PNG uses deflate (LZ77 + Huffman) for lossless compression
  • Quantization step in JPEG causes quality loss
  • Higher compression = smaller file but more artifacts
  • Compression ratio shows space savings (original size / compressed size)
  • PSNR and SSIM measure image quality after compression
  • Try different quality levels to see artifacts appear