Image processing functions for blurring, thresholding and edge detection added

1 files changed, 54 insertions, 0 deletions

diff --git a/macros/ImageProcessing/imgproc/CV_CornerHarris.sci b/macros/ImageProcessing/imgproc/CV_CornerHarris.sci
new file mode 100644
index 00000000..1b7aabc4
--- /dev/null
+++ b/macros/ImageProcessing/imgproc/CV_CornerHarris.sci
@@ -0,0 +1,54 @@
+// Copyright (C) 2016 - IIT Bombay - FOSSEE
+//
+// This file must be used under the terms of the CeCILL.
+// This source file is licensed as described in the file COPYING, which
+// you should have received as part of this distribution.  The terms
+// are also available at
+// http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+// Author: Siddhesh Wani
+// Organization: FOSSEE, IIT Bombay
+// Email: toolbox@scilab.in
+
+function edges = CV_CornerHarris(srcimg,blocksize,ksize,k,border_type)
+//Finds edges in image using Harris algorithm
+//
+// Calling Sequence
+//		edges = CV_CornerHarris(srcimg,blocksize,ksize,k,border_type)
+//
+// Parameters
+//		srcimg -> Input single-channel 8-bit or floating-point image.
+//		blockSize -> Neighborhood size 
+//		ksize -> Aperture parameter for the Sobel() operator.
+//		k -> Harris detector free parameter. 
+//		borderType -> border mode used to extrapolate pixels outside of the 
+//				image. It can be :
+//						BORDER_REPLICATE:     	aaaaaa|abcdefgh|hhhhhhh
+//						BORDER_REFLECT:       	fedcba|abcdefgh|hgfedcb
+//						BORDER_REFLECT_101:   	gfedcb|abcdefgh|gfedcba
+//						BORDER_WRAP:          	cdefgh|abcdefgh|abcdefg
+//						BORDER_CONSTANT:		iiiiii|abcdefgh|iiiiiii  
+// Description
+// 		The function runs the Harris edge detector on the image. For each 
+//		pixel (x, y) it calculates a 2 * 2 gradient covariance matrix M(x,y)
+//		over a blockSize * blockSize neighborhood. Then, it computes the 
+//		following characteristic:
+//		dst(x,y) =  det(M(x,y)) - k .tr(M(x,y))^2
+//		Corners in the image can be found as the local maxima of this 
+//		response map
+//
+// Examples
+//		img = CV_LoadImage('~/test.jpg',0)
+//		dst = CV_CvtColor(img,"CV_RGB2GRAY");
+//		edge = CV_CornerHarris(dst,5,3,1,"BORDER_REPLICATE");
+//
+// See also
+//     	CV_LoadImage CV_CvtColor
+//
+// Authors
+//     Siddhesh Wani
+//
+edges = 0
+// This is curretly dummy function. It provides no functionality but is required 
+// for providing support for generating C code for OpenCV
+
+endfunction