How Image Compression Works
Learn how image compression reduces file size while maintaining quality.
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Types of Compression
Lossless
Reduces file size without losing any data. Example: PNG, GIF
Lossy
Removes some data to achieve smaller file sizes. Example: JPEG, WebP
How It Works
JPEG uses discrete cosine transform to identify and remove data that the human eye cannot easily detect.
When to Use
Lossless: Graphics, text, screenshots
Lossy: Photographs, web images