'''Technote006:'''
A way to do this Draw the image into a canvas
http://developer.mozilla.org/En/Canvas_tutorial:Using_images
Then call toDataURL or getPixelData to get the pixels out.
It doesn't reverse-colour-correct the data read from canvas
methods which is incorrect, but useful. Reftests already
give a data URL when the test fails.
''toDataURL:''
http://cow.neondragon.net/index.php/681-Canvas-Todataurl
http://developer.mozilla.org/En/Code_snippets/Canvas
''getPixelData:''
no information
reftest can compare images now
'''Technote007:''' Use URI scheme for reftest [http://en.wikipedia.org/wiki/Data:_URI_scheme DATA URI Scheme Wiki]
'''Techtool001:''' layout/tools/reftest/reftest-to-html.pl