"atomic bomb" commit. Reorganized OpenCV directory structure

samples/python/numpy_warhol.py

@@ -0,0 +1,47 @@
+#!/usr/bin/python
+import urllib2
+import sys
+import cv
+import numpy
+
+if __name__ == "__main__":
+    cv.NamedWindow("camera", 1)
+
+    capture = cv.CaptureFromCAM(0)
+
+    paste = cv.CreateMat(960, 1280, cv.CV_8UC3)
+    topleft = numpy.asarray(cv.GetSubRect(paste, (0, 0, 640, 480)))
+    topright = numpy.asarray(cv.GetSubRect(paste, (640, 0, 640, 480)))
+    bottomleft = numpy.asarray(cv.GetSubRect(paste, (0, 480, 640, 480)))
+    bottomright = numpy.asarray(cv.GetSubRect(paste, (640, 480, 640, 480)))
+
+    while True:
+        img = cv.GetMat(cv.QueryFrame(capture))
+
+        n = (numpy.asarray(img)).astype(numpy.uint8)
+
+        red = n[:,:,0]
+        grn = n[:,:,1]
+        blu = n[:,:,2]
+
+        topleft[:,:,0] = 255 - grn
+        topleft[:,:,1] = red
+        topleft[:,:,2] = blu
+
+        topright[:,:,0] = blu
+        topright[:,:,1] = 255 - red
+        topright[:,:,2] = grn
+
+        bottomright[:,:,0] = red
+        bottomright[:,:,1] = grn
+        bottomright[:,:,2] = 255 - blu
+
+        fgrn = grn.astype(numpy.float32)
+        fred = red.astype(numpy.float32)
+        bottomleft[:,:,0] = blu
+        bottomleft[:,:,1] = (abs(fgrn - fred)).astype(numpy.uint8)
+        bottomleft[:,:,2] = red
+
+        cv.ShowImage("camera", paste)
+        if cv.WaitKey(6) == 27:
+            break