Automating Image Captions and Alt Text in ASP.NET Core MVC with Gemini AI
Modern web apps rely heavily on images, but writing meaningful captions and alt text for every upload is tedious manual work. This article shows how to integrate Google's Gemini AI into ASP.NET Core MVC (.NET 10) to automatically analyze uploaded images and generate SEO-friendly captions and alt text in multiple languages. You'll build a GeminiService that sends base64 image data to the API, wire up upload and result views, register dependencies in Program.cs, and see how AI-generated descriptions improve accessibility scores and Google Image Search visibility.