Would like to be able to help but am rushing like mad for the next two weeks.
http://srufaculty.sru.edu/david.dailey/svg/text/offsetblur5.svg and http://srufaculty.sru.edu/david.dailey/svg/text/offsetblur4.svg and http://srufaculty.sru.edu/david.dailey/svg/text/chrome1.svg and http://srufaculty.sru.edu/david.dailey/svg/text/chrome2.svg were the last things I did -- the stuff comes in and out of focus in my mind, I rewriting the chapter on Filters, so perhaps that will help keep it in focus. The stuff in the primer (http://www.w3.org/Graphics/SVG/IG/resources/svgprimer.html ) is the best explanation I have to date and I know that's not great in terms of making it all clear . Basically there are severl different ways of shifting the palette - the discrete types Oh that reminds me - I just ran across these fairly simple ones" http://srufaculty.sru.edu/david.dailey/svg/svgopen2008/discrete2.svg http://srufaculty.sru.edu/david.dailey/svg/svgopen2008/blurdiscrete.svg They might be relatively self explanatory. Gotta run, sorry David From: [email protected] [mailto:[email protected]] On Behalf Of Colin Sent: Tuesday, October 11, 2011 6:41 PM To: [email protected] Subject: [svg-developers] Re: Palette and dithering David, I'm sorry to be dim, but I've been fiddling around with feColorMatrix and feComponentTransfer for two days and I just can't understand how they work! Could you please give some tips on how to use them to reduce the palette? Colin. --- In [email protected] <mailto:svg-developers%40yahoogroups.com> , "David Dailey" <ddailey@...> wrote: > > I would concentrate on feComponentTransfer and feColorMatrix for the palette > reduction: > > > > See > http://www.w3.org/Graphics/SVG/IG/resources/svgprimer.html#feComponentTransf > er - there are some examples of "posterizing" there I think. > > > > Also, the animated example at > http://srufaculty.sru.edu/david.dailey/svg/matrixFilter.svg may provide some > notion of how to combine these filters into chained effects (either Opera, > FF6 or IE/ASV should allow you to see it - I was very pleasantly surprised > to see FF now handling this!). > > > > For the dithering part, yes, I would look at feConvolveMatrix - and there > are some examples of using it in the example above. > > > > Webkit and IE are a bit behind the others in filter implementations. > > > > > > Cheers > > David > > > > From: [email protected] <mailto:svg-developers%40yahoogroups.com> [mailto:[email protected] <mailto:svg-developers%40yahoogroups.com> ] > On Behalf Of Colin > Sent: Friday, October 07, 2011 3:14 AM > To: [email protected] <mailto:svg-developers%40yahoogroups.com> > Subject: [svg-developers] Palette and dithering > > > > > > Hello, > > I realise this may go against the grain of what SVG is for, but is there any > way to give graphics an "8-bit look"? > > In raster this is generally done by reducing the colour range to about 256, > then using ordered dithering. The result is something like this: > > http://bisqwit.iki.fi/jutut/kuvat/ordered_dither/scenebayer.png > > Could the feConvolveMatrix filter do this? (I can't test it just now because > it appears to be broken in Chrome.) > > Thanks, > Colin. > > > > > > [Non-text portions of this message have been removed] > [Non-text portions of this message have been removed] ------------------------------------ ----- To unsubscribe send a message to: [email protected] -or- visit http://groups.yahoo.com/group/svg-developers and click "edit my membership" ----Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/svg-developers/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/svg-developers/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
