Re: [PD] color tracking in Gem/Pd-extended?
You can use [pix_colormatrix] and [pix_blob]. ++ Jack Le 20 févr. 09 à 18:59, John Harrison a écrit : > Wondering the best solution for color tracking in Pd-extended. I'd > like > my solution to be cross-platform so that rules out PDP and friends. > > All I've come up with is to use [pix_blob] to track the color, and to > try to minimize the tracking color in the background. There's > probably a > Gem object where I can "gate" a color i.e. eliminate a color from a > pixel if it is less than a certain amount. In my rendering chain after > my webcam I'd gate the color I am trying to track, then use [pix_blob] > with a color weight of entirely the tracking color. > > Is there a better way? > > -John > > > > ___ > Pd-list@iem.at mailing list > UNSUBSCRIBE and account-management -> http://lists.puredata.info/ > listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Re: [PD] color tracking in Gem/Pd-extended?
did you have a look at pix_alpha? marius. John Harrison wrote: > Wondering the best solution for color tracking in Pd-extended. I'd like > my solution to be cross-platform so that rules out PDP and friends. > > All I've come up with is to use [pix_blob] to track the color, and to > try to minimize the tracking color in the background. There's probably a > Gem object where I can "gate" a color i.e. eliminate a color from a > pixel if it is less than a certain amount. In my rendering chain after > my webcam I'd gate the color I am trying to track, then use [pix_blob] > with a color weight of entirely the tracking color. > > Is there a better way? > > -John > > > > ___ > Pd-list@iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Re: [PD] color tracking in Gem/Pd-extended?
How will you avoid gating the color of the object you're trying to track as well? To use your method below I'd suggest using some combination of [separator] and [pix_background] to create a mask so that [pix_blob] (or the color gate, depending on the setup) only affects new objects introduced into the environment. That's very incomplete suggestion, but I don't have pd in front of me right now to toy with examples. Best of luck, let me know if you get a patch together, I'd like to see it. -Ben >Wondering the best solution for color tracking in Pd-extended. I'd like >my solution to be cross-platform so that rules out PDP and friends. >All I've come up with is to use [pix_blob] to track the color, and to >try to minimize the tracking color in the background. There's probably a >Gem object where I can "gate" a color i.e. eliminate a color from a >pixel if it is less than a certain amount. In my rendering chain after >my webcam I'd gate the color I am trying to track, then use [pix_blob] >with a color weight of entirely the tracking color. >Is there a better way? >-John ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
[PD] color tracking in Gem/Pd-extended?
Wondering the best solution for color tracking in Pd-extended. I'd like my solution to be cross-platform so that rules out PDP and friends. All I've come up with is to use [pix_blob] to track the color, and to try to minimize the tracking color in the background. There's probably a Gem object where I can "gate" a color i.e. eliminate a color from a pixel if it is less than a certain amount. In my rendering chain after my webcam I'd gate the color I am trying to track, then use [pix_blob] with a color weight of entirely the tracking color. Is there a better way? -John ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
