Tag
“lanczos”
2 posts
- Technical Deep Dives··6 min read
The Math Behind Upscaling a 176px Thumbnail to 2048px
A fixed "2×" turns 176px into a still-tiny 352px. Real upscaling of small inputs needs a pre-scale plan and cascaded passes. The arithmetic we use to get a thumbnail to a usable size.
- Technical Deep Dives··8 min read
AI Image Upscaling: Lanczos vs. Swin2SR vs. Real-ESRGAN — Which Is Best?
A practical comparison of three upscaling approaches — classic Lanczos interpolation, transformer-based Swin2SR, and GAN-based Real-ESRGAN. When each method wins, what to expect on different content types, and how to choose.