first worktin sobel filter in library

MANIFEST.in

@@ -0,0 +1 @@
+recursive-include cv2pynq/bitstreams *

cv2pynq/__init__.py

@@ -1,3 +1,20 @@
+import cv2
+from cv2 import *
+import numpy as np
+from .cv2pynq import *
 
-def Sobel():
-    return 1
+__version__ = 0.1
+
+c = cv2pynq()
+
+#def Sobel(src, ddepth, dx, dy[, dst[, ksize[, scale[, delta[, borderType]]]]]) :
+def Sobel(src, ddepth, dx, dy, dst=0, ksize=3, scale=1, delta=0, borderType=cv2.BORDER_DEFAULT):
+    """Executes the Sobel operator on hardware if input parameters fit to hardware constraints.
+    Otherwise the OpenCV Sobel function is called."""
+    if (dst == 0) and (ksize == 3) and (scale == 1) and (delta == 0) and (borderType == cv2.BORDER_DEFAULT) :
+        if (src.dtype == np.uint8) and (src.ndim == 2) :
+            if (src.shape[0] <= cv2pynq.MAX_HEIGHT) and (src.shape[0] > 0) and (src.shape[1] <= cv2pynq.MAX_WIDTH) and (src.shape[1] > 0) :
+                if ((ddepth == -1) and (dx == 1) and (dy == 0)) or ((ddepth == -1) and (dx == 0) and (dy == 1)) :
+                    return c.Sobel(src, ddepth, dx, dy)
+
+    return cv2.Sobel(src, ddepth, dx, dy, dst, ksize, scale, delta, borderType)