资源简介
Publications:
=============
1. M. Awrangjeb and G. Lu, An Improved Curvature Scale-Space Corner Detector and a Robust Corner Matching Approach for Transformed Image Identification,?IEEE Transactions on Image Processing, 17(12), 2425?441, 2008.
2. M. Awrangjeb, G. Lu, and M. M. Murshed, An Affine Resilient Curvature Scale-Space Corner Detector,?32nd IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2007), Hawaii, USA, 1233?236, 2007.
代码片段和文件信息
function [coutmarked_imgcurvature]=arcss(varargin)
[IHLGap_sizeEP] = parse_inputs(varargin{:});
%%
%When you give inputs manually then comment the two above lines and uncomment
%the following lines:
%function [coutmarked_imgcurvature]=arcss()%for manual input
%I = imread(‘Lena.bmp‘);
%H = 0.7;
%L = 0.2;
%Gap_size = 1;
%EP = 0;
%%
%{
Find corners in intensity image.
Publications:
=============
1. M. Awrangjeb and G. Lu 揂n Improved Curvature Scale-Space Corner Detector and a Robust Corner Matching Approach for Transformed Image Identification?IEEE Transactions on Image Processing 17(12) 2425?441 2008.
2. M. Awrangjeb G. Lu and M. M. Murshed 揂n Affine Resilient Curvature Scale-Space Corner Detector?32nd IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP 2007) Hawaii USA 1233?236 2007.
Better results will be found using following corner detectors:
==============================================================
1. M. Awrangjeb G. Lu and C. S. Fraser 揂 Fast Corner Detector based on the Chord-to-Point Distance Accumulation Technique?Digital Image Computing: Techniques and Applications (DICTA 2009) 519-525 2009 Melbourne Australia.
2. M. Awrangjeb and G. Lu 揜obust Image Corner Detection based on the Chord-to-Point Distance Accumulation Technique?IEEE Transactions on Multimedia 10(6) 1059?072 2008.
Source codes available:
=======================
http://www.mathworks.com/matlabcentral/fileexchange/authors/39158
% Syntax :
% [coutmarked_img curvature] = corner_css(I H L Gap_size End_Point)
% [coutmarked_img curvature] = corner_css(I 0.7 0.2 1 0)
%
% Input :
% I - the input image it could be gray color or binary image. If I is
% empty([]) input image can be get from a open file dialog box.
% HL - high and low threshold of Canny edge detector. The default value
% is 0.7 and 0.2.
% Gap_size - a paremeter use to fill the gaps in the contours the gap
% not more than gap_size were filled in this stage. The default
% Gap_size is 1 pixels.
% End_Point - 1 if you want to get the end points of the curves as
% corners 0 otherwise; default is 0.
%
% Output :
% cout - a position pair list of detected corners in the input image.
% marked_image - image with detected corner marked.
% curvature - curvature values at the corner locations
%}
%%
global GFP;
GFP{1} = [300 5 0.03]; % col1 = affine-length col2 = sigma col3 = Threshold
GFP{2} = [250 4 0.03];
GFP{3} = [200 3 0.03];
if size(I3)==3
I=rgb2gray(I); % Transform RGB image to a Gray one.
end
%detect edges
%tic
BW=edge(I‘canny‘[LH]); % Detect edges: [LH] low and high sensitivity thresholds if not specified canny selects
%time_for_detecting_edge=toc % automatically
%extract curves
%tic
[curvecurve_startcur
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