Applying dehalo on a single snapshot ?

[lisztfr9]

Hi,

I was wondering how to apply Dehalo on a vlc snapshot, so i could create a video but it's cumbersome, i was rather playing with the Gimp.

In the Gimp, edge detection seems not able to extract the high contrast VHS artifacts (halo) from other edges... i need to know how to apply any smoothing to the appropriate region only.

Thanks, L

Edit, for the moment i'm coming up with a technique for smoothing the edges, through an edge mask, never mind. It's the opposite of "smart sharpening."

[lisztfr9]

I tried it with 5, 5 (first parameters, rx, ry)

First, applied anisotropic smoothing (Gimp) to both, then a bit sharpening, and 75% of auto contrast level.

The problem is that halo are difficult to extract, for example it's not always located in high contrast area (right arm of SL). It's related to edges, but if you diminish the edge contrast the whole image get soften.

Anyway the processed image is 3 times lighter than the original...

L

[Bloax]

AviSynth does support image sources (http://avisynth.nl/index.php/ImageSource), or is that not what you're looking for?

Because to apply the dehalo filters for avisynth to an image you'd just do ImageSource("blah") instead of your usual video source filter and then apply the filters as per usual.