Tag
“alpha channel”
4 posts
- Technical Deep Dives··8 min read
How to Remove Backgrounds from Photos with Hair and Fur
Hair, fur, and fine strands are the hardest subjects for background removal AI. This guide covers why it's difficult, how RMBG-1.4 and BiRefNet handle it, and how to get the cleanest results using edge refinement.
- Technical Deep Dives··9 min read
The Difference Between Straight Alpha and Premultiplied Alpha (And Why It Matters)
A clear technical explanation of straight alpha vs premultiplied alpha — what each means, why premultiplied alpha causes the "black fringe" problem, and how to tell which one your tool produces.
- Tutorials··10 min read
Working with Transparent PNGs in Photoshop: The Definitive Guide
Everything you need to know about transparent PNGs in Photoshop — why they show black, how straight vs premultiplied alpha works, and how to verify your export has true transparency.
- Technical Deep Dives··8 min read
Why Your Transparent PNG Shows Black in Photoshop (And How to Fix It)
The premultiplied alpha problem explained: why most free background removers produce PNGs that show black in Photoshop, and what to look for in a tool that gets it right.