From 9a30882032e80661fe6c69d7c50da0154e4e431f Mon Sep 17 00:00:00 2001 From: siddhu8990 Date: Thu, 22 Sep 2016 10:35:52 +0530 Subject: Image processing functions for blurring, thresholding and edge detection added --- macros/ImageProcessing/imgproc/CV_CornerHarris.sci | 54 ++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 macros/ImageProcessing/imgproc/CV_CornerHarris.sci (limited to 'macros/ImageProcessing/imgproc/CV_CornerHarris.sci') 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 -- cgit From 453598b49cb3d4a62b1797dbc90f0e3dd4521329 Mon Sep 17 00:00:00 2001 From: siddhu8990 Date: Wed, 19 Apr 2017 11:56:09 +0530 Subject: Copyright message updated in added files and libraries separated in 'thirdparty' folder --- macros/ImageProcessing/imgproc/CV_CornerHarris.sci | 1 - 1 file changed, 1 deletion(-) (limited to 'macros/ImageProcessing/imgproc/CV_CornerHarris.sci') diff --git a/macros/ImageProcessing/imgproc/CV_CornerHarris.sci b/macros/ImageProcessing/imgproc/CV_CornerHarris.sci index 1b7aabc4..fb25612b 100644 --- a/macros/ImageProcessing/imgproc/CV_CornerHarris.sci +++ b/macros/ImageProcessing/imgproc/CV_CornerHarris.sci @@ -5,7 +5,6 @@ // 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 -- cgit From aef4e8398f2b1848b0e4cdd9580dbbe93e4006f9 Mon Sep 17 00:00:00 2001 From: Jorawar Singh Date: Fri, 30 Jun 2017 11:28:58 +0530 Subject: Help files, modified Raspberry Pi code conversion --- macros/ImageProcessing/imgproc/CV_CornerHarris.sci | 49 +++++++++++----------- 1 file changed, 24 insertions(+), 25 deletions(-) (limited to 'macros/ImageProcessing/imgproc/CV_CornerHarris.sci') diff --git a/macros/ImageProcessing/imgproc/CV_CornerHarris.sci b/macros/ImageProcessing/imgproc/CV_CornerHarris.sci index fb25612b..ccb83cb7 100644 --- a/macros/ImageProcessing/imgproc/CV_CornerHarris.sci +++ b/macros/ImageProcessing/imgproc/CV_CornerHarris.sci @@ -12,42 +12,41 @@ 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) +// 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 +// 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. +// border_type: border mode used to extrapolate pixels outside of the image. +// // 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 +// 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"); +// border_type 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 +// +// +// This is curretly dummy function. It provides no functionality but is required +// for providing support for generating C code for OpenCV // +// 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 -- cgit