keeping black pixels INSIDE a floodfill region...

tep's icon

I use cv.jit.floodfill to make a "magic lasso" and pick up shapes in pictures (thanks JM Pelletier !), which i put back the original texture with cc.alphaglue.jxs

Nice.

Max Patch
Copy patch and select New From Clipboard in Max.

Now, how can i keep those black pixels which are INSIDE this selected "zone" ?