I shall investigate them - thanks ! On Mon, Nov 17, 2008 at 4:15 AM, [EMAIL PROTECTED] <[EMAIL PROTECTED]>wrote:
> Hello, > > I once found two stacks with the names > > ImageTrans.rev > and one with > altMakeTrans.rev from altuit > > which both do what you want and have the necessary scripts within. > > Try altuit ... > > Mit freundlichen Grüßen > Franz Böhmisch > > [EMAIL PROTECTED] > http://www.animabit.de > GF Animabit Multimedia Software GmbH > Am Sonnenhang 22 > D-94136 Thyrnau > Tel +49 (0)8501-8538 > Fax +49 (0)8501-8537 > > > > > > Original Message processed by David InfoCenter > Subject: Re: Doing chromakey through Runrev (17-Nov-2008 9:47) > From: Jacques Hausser <[EMAIL PROTECTED]> > To: [EMAIL PROTECTED] > > > Hi Jonathan, > > I'm surprised that nobody answered till now. I did not try > chromakeying myself, but I would suggest > 1) to sample the color of blue background (perhaps at different places to > get an amplitude of variation of the color - it is never absolutely > constant) with the mouseColor function. Alternatively, put arbitrary > limits at + - n pixels of each channel of the sampled color. > 2) to identify pixels of the image of which the color is in these limits > 3) to set the corresponding pixels of the alphadata or ot the maskdata of > this image to 0. Then the image with be transparent except for what you want > to keep > 4) to replace the pixels of the imageData of your new background > image by the non-transparent pixels of the first image > -- or alternatively to put the partially transparent image over the > background image, what allow to change the scale, for example, and > then to use a snapshot to merge the two images (at screen definition) > 6) to use the alphadata or the maskdata of the first image to identify the > limits of the incrusted one, and to apply some blurring algorithm to the > pixels around this limit. Without that, the limit will appear > jaggered. > > The two images must of course have exactly the same dimensions in > pixel rows and columns. Look at the dictionnary for imageData,MaskData and > alphaData for details... and tell us about your experiences ! > > good luck > > Jacques > > Le 16 nov. 2008 à 21:59, Jonathan Lynch a écrit : > > > Does anyone have any suggestions on how to do professional-quality > > photographic chromakeying (like blue screen or green screen) with > > RunRev? > > > > -- > > Do all things with love > > _______________________________________________ > > use-revolution mailing list > > use-revolution@lists.runrev.com > > Please visit this url to subscribe, unsubscribe and manage your > > subscription preferences: > > http://lists.runrev.com/mailman/listinfo/use-revolution > > ****************************************** > Prof. Jacques Hausser > Department of Ecology and Evolution > Biophore / Sorge > University of Lausanne > CH 1015 Lausanne > please use my private address: > 6 route de Burtigny > CH-1269 Bassins > tel/fax: ++ 41 22 366 19 40 > mobile: ++ 41 79 757 05 24 > E-Mail: [EMAIL PROTECTED] > ******************************************* > > _______________________________________________ > use-revolution mailing list > use-revolution@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-revolution > > To: use-revolution@lists.runrev.com > _______________________________________________ > use-revolution mailing list > use-revolution@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-revolution > -- Do all things with love _______________________________________________ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution