Elementi

I was wondering whether it was possible to have a web-cam picking up say the color red from a white background and then displaying a video that automatically plays. If someone could just point me to a tutorial or in the general direction it would be greatly appreciated. I'm guessing that it has to do with pixel comparison between the current frame and the previous frame with a value range for the color to look for. Am I way off or close?

I was wondering whether it was possible to have a web-cam picking up say the color red from a white background and then displaying a video that automatically plays.  If someone could just point me to a tutorial or in the general direction it would be greatly appreciated.  I'm guessing that it has to do with pixel comparison between the current frame and the previous frame with a value range for the color to look for.  Am I way off or close?


color-recognition-to-play-a-video

Tutorial 25: Tracking the Position of a Color in a Movie

The thing i dont really need the tracking part so much. I just need the program to recognize red has appeared on the screen and then play a video to show that.

The thing i dont really need the tracking part so much.  I just need the program to recognize red has appeared on the screen and then play a video to show that.


as always with jitter you can reach the goal in diferent ways..

this is one,,, almost a cut and paste from the helpfile..

use a white background and put a red object in front of the camera..

as always with jitter you can reach the goal in diferent ways..
this is one,,, almost a cut and paste from the helpfile..
use a white background and put a red object in front of the camera..

ok so i get the detection part but how do i then tell max to play a video once red is detected?

First, read and understand jitter tutorial 1 and 4.

Once you set up a video you have a number of different choices with jit.qt.movie. Probably good to start with an if statement.

1) if numbers are greater than -1 sent the start message to jit.qt.movie, otherwise send a stop message.

2) you could always use the if statement to send a 1 or a 0 and then use that to change the rate attribute of the movie.

Once you set up a video you have a number of different choices with jit.qt.movie.  Probably good to start with an if statement.
1) if numbers are greater than -1 sent the start message to jit.qt.movie, otherwise send a stop message.
2) you could always use the if statement to send a 1 or a 0 and then use that to change the rate attribute of the movie.


Color Recognition to play a video