The application view does not render from the resources directory, only the public directory where the build outputs to. if your build outputs images to an assets directory, then you could manually copy the /assets directory into the /public directory.
I normally skip putting my images in the /resources directory, because it's all going to end up in the /public directory after the npm / vite build process.
So what you're looking for is the folder and location of the image within the public directory, it also means that you are placing your images where they will end up eventually. So if your images are in /public/images/welcome/splash.png then you will want to refer to the image as src="/images/welcome/splash.png"