You can create your own vertical/horizontal edge detect by using the Matrix node to create a basic Sobel filter.
Create a Matrix node, and set it to be 3x3. For a vertical edge detect, enter the following values: [ -1 0 1 ] [ -2 0 2 ] [ -1 0 1 ] For a horizontal edge detect, enter these values: [ -1 -2 -1 ] [ 0 0 0 ] [ 1 2 1 ] Then follow this with an Merge node set to Difference. Make sure the B input is plugged into the Matrix node, and leave the A input disconnected. This will make the negative values that came out of the Matrix node positive. Hugh Macdonald nvizible – VISUAL EFFECTS [email protected] +44(0) 207 659 2038 +44(0) 7773 764 708 www.nvizible.com On 21 Apr 2011, at 14:12, Renato Carone wrote: > Hi, > > If you use a Erode node after your Edge Detect, you can select vertical or > horizontal lines. > > Cheers, > Renato carone > > On 21/04/2011, at 06:44, Spider <[email protected]> wrote: > >> Hi everyone, >> >> I'd like to kow if there is a way to select only vertical and/or horizontal >> lines after an edge detect node, cause i'd like to apply a node only for >> these selection. >> Any hint ? >> >> Thanks for your help. >> >> Spider >> >> >> -- >> Luddnel Spider Magne | Director - Lead Motion Compositor >> 555Lab – Alchemy between you and us >> 24 rue du Pré St-Gervais 93500 Pantin >> Office (+33)148 453 555 | Fax (+33)171 864 387 >> Mobile (+33)699 434 555 | 555lab.com >> _______________________________________________ >> Nuke-users mailing list >> [email protected] >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > _______________________________________________ > Nuke-users mailing list > [email protected] > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
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