Context is here, talking about using an iPad to zoom in on video. [0] My initial thought is no, it just makes existing pixels bigger and blurrier. But then I saw this expert’s testimony[1] and I’m wondering if I’m missing something: “Wisconsin crime lab employee James Armstrong testified, under questioning from defense attorney Corey Chirafisi, that the software program adds pixels to the image and he cannot say with certainty what color the added pixels are.”
[0] https://arstechnica.com/tech-policy/2021/11/rittenhouse-trial-judge-disallows-ipad-pinch-to-zoom-read-the-bizarre-transcript/
[1] https://apnews.com/article/kyle-rittenhouse-technology-wisconsin-kenosha-homicide-b561bef68dc6aadaadc9b45a1bd93a19
(I don't think pinch-to-zoom adds sharpening, but it's something that could use an expert to double check.)