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“premultiplied alpha”
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Technical Deep Dives··9 min readThe 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.
Technical Deep Dives··8 min readWhy 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.