Convert an image to grayscale in HTML/CSS

Question

Is there a simple way to display a color bitmap in grayscale with just HTML/CSS?

It doesn\'t need to be IE-compatible (and I imagine it won\'t be) -- if

Answer 1

If you're willing to use Javascript, then you can use a canvas to convert the image to grayscale. Since Firefox and Safari support , it should work.

So I googled "canvas grayscale", and the first result was http://www.permadi.com/tutorial/jsCanvasGrayscale/index.html which seems to work.