Công cụ trích xuất hình ảnh tự động sử dụng lưới 3×3

Previously, I used to send a 3×3 grid to Nano Banana Pro and ask it to extract an image by “row and column” — and it failed way too often. So I ended up building a small tool myself: Just upload an image ✅ Automatically generate a 3×3 grid ✅ Split it instantly and export any single cell in high resolution ✅