Change color of pixels using javascript

Question

Whether it is possible to change the color of pixels in an image using javascript. If so, how?

Answer 1

no not possible but you can use css filters.
a div with alpha set of color upon an image can make it look like image color is changed

Answer 2

Yes, since Html5 and the <canvas> element and JS API, you can do that kind of stuff... even on playing video if wanted :P