From 11ec35baaa2ee0d44f88c5ecab2a3ea71d3c4105 Mon Sep 17 00:00:00 2001 From: "N.N." Date: Wed, 1 Jul 2009 19:29:18 +0000 Subject: added parameters and identification svn path=/trunk/externals/pix_opencv/; revision=11840 --- pix_opencv_bgsubstract-help.pd | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) (limited to 'pix_opencv_bgsubstract-help.pd') diff --git a/pix_opencv_bgsubstract-help.pd b/pix_opencv_bgsubstract-help.pd index 2ad204f..cd3aa34 100644 --- a/pix_opencv_bgsubstract-help.pd +++ b/pix_opencv_bgsubstract-help.pd @@ -1,5 +1,5 @@ -#N canvas 510 70 691 547 10; -#X obj 286 -33 gemhead; +#N canvas 515 94 691 547 10; +#X obj 618 -33 gemhead; #X obj 364 374 pix_texture; #X obj 364 402 square 2; #X obj 20 159 cnv 15 220 70 empty empty empty 20 12 0 14 -195568 -66577 @@ -61,6 +61,19 @@ #X msg 472 288 set; #X text 508 288 set the background; #X text 572 320 threshold (default 13); +#X text 26 -2 This object takes an image as a background reference +and the compare each incomming frame with that. On the output you get +a bw image \, black pixels are considered as background and white poixels +as foreground.; +#X text 27 -94 pix_opencv_bgsubstract :: A simple background substract +and binarization object.; +#X text 26 -49 It is useful if you want to detect objects that are +in front of an static background and you want to isolate the foreground +silhouete of the foreground objects.; +#X text 26 59 pix_opencv_bgsubstract works comparing color values of +each pixel \, so it can fail if the foreground object has the same +color that the background \, and also if the light conditions or the +shadows changes since you SET the background image.; #X connect 0 0 21 0; #X connect 1 0 2 0; #X connect 4 0 5 0; -- cgit v1.2.1