What coding methods can prevent steganography attacks within image files

Question

I’m researching ways to secure image uploads against steganography, where attackers might hide sensitive data or commands within images. I’d like to know what programming techniques or methods could prevent such data from being embedded in images, or to detect steganographic content if it’s already present.

If there are specific libraries, scanning methods, or restrictions to apply to images during the upload process, I’d appreciate recommendations on best practices.