Full width image / NOT Header Slider

Hi there

I would love to be able to add full width images in my site. Just like the header slider, but other places on my site.

If I use the background image option it will be full width, but with black see through on top.

Is there a way of removing the back on top of the background image or some other way of adding full width images.

F.ex. this top image (see link) I would love to have as full width

Thanks for your time…