How to protect game images from theft and spoilers during apk decompilation?

ENG

I want to create protection for images to avoid theft and spoilers for the game.

Uploading images online via a URL would be bad in my case! I need to make sure that there is nothing in the sprite folder. Are there any options for protecting images?

RU

Я хочу создать защиту для изображений, чтобы избежать кражу и спойлеры для игры

Загружать изображения онлайн через URL в моем случае будет плохо! Мне нужно сделать так, чтобы в папке со спрайтами ничего не было. Есть какие-нибудь варианты защиты изображений?

It's not worth the time.

Look at any game, Ps1, Dreamcast, Wii. You'd think "oh yeah those files are locked down, not even for Windows or x86 computers!", but there's tools to extract textures and sprites, there always is.

I pretty sure there's a tool called 3DDXRipper to capture models and textures of any DirectX game.

I do agree things in C3 exports/html5 games, they are a bit too easy to snoop around the image files, but I think it's better to ignore this and focus on the game design first.