Stylizing Lena

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Original bitmap image	Importance painted by the user
Saliency image	Trixels, adapted to both the importance and saliency.
PDF Ardeco approximation with constant colors.	PDF Ardeco approximation with gradients.
PDF Create your own Lena painting (Haeberli's "painting by numbers" revisited).

ARDECO: Automatic Region DEtection and COnversion