schplingidy

im trying to create an interactive color tracking patch that can pick up on whatever color you specify and draw on the lcd object wherever that color was detected from a live feed.

i modified the color tracking tutorial to draw on the lcd when it detects red from the redball movie. i applied the jit.grab object into the patch and was able to use a red lighter in place of the redball.mov to draw on top of the live feed display/lcd

i cannot figure out an easy way to specify which color is tracked, for now i can only track red. i would like to use the swatch object to specify which color will be tracked, but i cannot figure out how to do so.

[mod edit - removed uncompressed patch. please use copy-compressed format to past in forums]

i modified the color tracking tutorial to draw on the lcd when it detects red from the redball movie. i applied the jit.grab object into the patch and was able to use a red lighter in place of the redball.mov to draw on top of the live feed display/lcd 

[mod edit - removed uncompressed patch. please use copy-compressed format to past in forums]


color-tracking-patch

your patch won't open. I guess it was too much. use copy compressed from the edit menu if you post patches.

I found a very old patch that might do what you are asking for. I ripped out the necessary part.... you have to excuse the mess.

just click anywhere on the video and that color will be tracked. hope this helps.

your patch won't open. I guess it was too much. use copy compressed from the edit menu if you post patches.
I found a very old patch that might do what you are asking for. I ripped out the necessary part.... you have to excuse the mess.

just click anywhere on the video and that color will be tracked. hope this helps.


this time i used copy compressed... take a peek if you want, im looking into your post now. thanks!

i got the patch working more like i intended. ive come across a few problems tho:

when i track a color and try to draw with it, the drawing actions are not displayed on the lcd exactly as i draw them, they are opposite

i would like to be able to change the pen type and color modes so that i dont have to always use the circles for drawing

when i track a color and try to draw with it, the drawing actions are not displayed on the lcd exactly as i draw them, they are opposite 

i still cant figure out how to get the left/right coordination correct when attempting to draw on the lcd with a tracked color. up/down seems to get tracked/drawn fine, but if i move left and right then the drawing is opposite on the lcd...

if i disable "use source dimensions" then everything gets tracked and drawn like i intended, but i need to use source dimensions for the mirrored effect...

i cannot figure out how to change the color that is being drawn onto lcd

i am still have mirrored image issues from earlier ^^^

i cannot figure out how to create a simultaneous fullscreen function for lcd, suckah, and jit.pwindow objects

i cannot figure out how to change the size of the pen

 i cannot figure out how to change the color that is being drawn onto lcd

http://post.monome.org/comments.php?DiscussionID=6985&page=1#Comment_82374

have you you seen this? not sure if it helps or not but theres an object called cv.jit.label which can be found here:

oh sweet i just played with your patch a bit - nice work - not sure how to make the lcd show up on the jit window either

Try jit.lcd, it will eliminate one unneeded object. Your mirroring problem should be solvable using [scale] with the right values, you probably need to swap the X axis somewhere. For "fullscreen" it's a bit tricky, but start with fullscreen $1 to [thispatcher], and send patching_rect (or presentation_rect if you use Presentation Mode) messages to the suckah and the jit.lcd. You should be able to get them just the right size, but on a different monitor this may not work. To ensure that it does, look to [jit.displays].

I'm not sure how to change the pen size, but you can make the ovals any size, or use rectangles, so you can emulate most sizes that way.

I need to track a certain color in the live video to effect the jit.lcd graphics i've created.

Let me get this straight.
What exactly did you use to track color?
I'm mixing both jit.lcd and live video. 

Great patch MIB, I've been looking for something like this for a while!!

Great patch MIB, I've been looking for something like this for a while!!
many thanks


If you want to reverse the source data - thus stopping it being mirrored, then you need to, at some point inverse the values being used to draw one the lcd. Preferable before any calculations.