如何将图像转换为CSS

Usually it's the other way around, but I'm a special kid.

So I was wondering what the most efficient way was to convert an entire image to a CSS-rendered image, I made a method that would

Get the image (using PHP's image create from JPEG)

Get the width / height of the image

Loop the height of the image, then in that loop -- loop the width

In width loop, get the color of the current position (current loop iteration / height loop iteration (x,y)) Display in a div (width=1px;height=1px;rgb(r,g,b))

But that seems to take a really long time to render, as it's displaying thousands if not millions of divs to render the one image, so I was wondering if there was another way to display an image from getting the hex / rgb colors from an image.

In a way -- Looking for the quickest way to display a pixel of data, I understand a div isn't the best for that because it's meant to hold data, etc...