Code covered by the BSD License  

Highlights from
Fingerprint matching algorithm using shape context and orientation descriptors

image thumbnail

Fingerprint matching algorithm using shape context and orientation descriptors

by

 

04 Nov 2010 (Updated )

Fingerprint matching code using a hybrid descriptor. EER < 1% (approx. 0.75%) on FVC2002 Db1_A.

show(im, figNo, Title)
% SHOW - Displays an image with the right size and colors and with a title.
%
% Usage:  show(im, figNo, title)
%
% Arguments:  im    - Either a 2 or 3D array of pixel values or the name
%                     of an image file;
%             figNo - Optional figure number to display image in. If
%                     figNo is 0 the current figure or subplot is
%                     assumed.
%             title - Optional string specifying figure title
%
% The function displays the image, automatically setting the colour map to
% grey if it is a 2D image, or leaving it as colour otherwise, and setting
% the axes to be 'equal'.  The image is also displayed as 'TrueSize', that
% is, pixels on the screen match pixels in the image (if it is possible
% to fit it on the screen, otherwise MATLAB rescales it to fit).
%
% Unless you are doing a subplot (figNo==0) the window is sized to match
% the image, leaving no border, and hence saving desktop real estate.
%
% If figNo is omitted a new figure window is created for the image.  If
% figNo is supplied, and the figure exists, the existing window is reused to
% display the image, otherwise a new window is created. If figNo is 0 the
% current figure or subplot is assumed.

% Copyright (c) 2000-2003 Peter Kovesi
% School of Computer Science & Software Engineering
% The University of Western Australia
% http://www.csse.uwa.edu.au/
% 
% Permission is hereby granted, free of charge, to any person obtaining a copy
% of this software and associated documentation files (the "Software"), to deal
% in the Software without restriction, subject to the following conditions:
% 
% The above copyright notice and this permission notice shall be included in 
% all copies or substantial portions of the Software.
%
% The Software is provided "as is", without warranty of any kind.

% October 2000  Original version
% March   2003  Tweeks to put figure name in window bar and allow for 
%               subplots 


function show(im, figNo, Title)
    
    warning('off');        % Turn off warnings that might arise if image
                           % has to be rescaled to fit on screen
    
    if nargin <= 2			   
	if ~isnumeric(im) & ~islogical(im) % Guess that an image name has
                                           % been supplied 
	    Title = im;
	    im = imread(im);
	else
	    Title = inputname(1);  % Get variable name of image data
	end
    end
    
    newWindow = 1;
    if nargin >= 2
	if figNo               % We have a valid figure number
	    figure(figNo);     % Reuse or create a figure window with
                               % this number
            subplot('position',[0 0 1 1]); % Use the whole window
	else                   
	    newWindow=0;       % figNo == 0
	end
    else
	figNo = figure;        % Create new figure window
	subplot('position',[0 0 1 1]); % Use the whole window
    end

    if ndims(im) == 2          % Display as greyscale
	imagesc(im)
	colormap('gray');
    else
%	imshow(im)             % Display as RGB
    end

    if newWindow            
	axis('image'), axis('off')
	set(figNo,'name', ['  ' Title]), truesize(figNo)
    else                          % Assume we are trying to do a subplot 
	axis('image'), axis('off')
	title(Title) % Use a title rather than rename the figure	
    end

    warning('on');  % Restore warnings
    


Contact us