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+#X obj 40 55 shunt 2;
+#X obj 40 448 @out window;
+#X text 6 100 simple per-channel threshold;
+#X text 316 102 bluescreen luma threshold;
+#X text 381 255 here we have a mask;
+#X text 361 267 (alpha as separate image);
+#X obj 327 356 @join 2;
+#X text 386 295 make a RGBA image;
+#X obj 310 137 t b a a;
+#X text 218 398 = medium blue;
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+#X text 386 333 won't be necessary;
+#X text 319 117 with alpha channel;
+#X text 13 368 you could also load a picture;
+#X text 13 380 instead of using uniform blue;
+#X text 58 -31 1000/100 = 10 fps (max) (adjustable);
+#X text 281 22 see also color_detect.pd;
+#X obj 40 33 #camera;
+#X obj -13 -86 cnv 15 580 30 empty empty empty 20 12 0 14 -233017 -66577
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+#X text 0 -73 Copyright 2002 Mathieu Bouchard;
+#X obj -15 499 cnv 15 580 30 empty empty empty 20 12 0 14 -200249 -66577
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+#X text -7 506 GridFlow 0.8.0;
+#X text -7 506 GridFlow 0.8.0;
+#X text 0 -86 threshold.pd;
+#X obj 290 335 #store;
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+#X obj 354 162 #rgb_to_greyscale;
+#X text 384 320 this silly #finished;
+#X text 388 347 in GridFlow 1;
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