/matlab_tools/Converted/krc_seqsim.m

%krc_seqsim 'sequential similarity detection algorithm'
% This MatLab function was automatically generated by a converter (KhorosToMatLab) from the Khoros rc_seqsim.pane file
%
% Parameters: 
% InputFile: iref 'Input Reference Image', required: 'input reference image'
% InputFile: idist 'Input Distorted Image', required: 'input distorted image'
% OutputFile: o 'Output', required: 'Resulting output data object'
% Double: sum_fraction 'fraction of min sum', default: 0.75: 'set threshold to fraction of minimum sum '
% Integer: seed 'seed', default: 1234567: 'seed for krandom'
% Double: threshold 'Set explicit threshold', default: 100: 'similarity metric threshold'
% Integer: pix_number 'number of pixels', default: 20: 'number of pixels to sample for auto-threshold'
% Double: pix_fraction 'fraction of pixels', default: 0.01: 'fraction of pixels to sample for auto-threshold'
%
% Example: o = krc_seqsim({iref, idist}, {'iref','';'idist','';'o','';'sum_fraction',0.75;'seed',1234567;'threshold',100;'pix_number',20;'pix_fraction',0.01})
%
% Khoros helpfile follows below:
%
%  PROGRAM
% rc_seqsim - sequential similarity detection algorithm
%
%  DESCRIPTION
% This program finds the translation correction needed to register the
% distorted image to the reference image.  It operates much like
% standard correlation, but with two exceptions: (1) rather than summing
% the squared differences, the absolute differences are summed, and (2)
% rather than summing over the entire window, the algorithm sums until a
% threshold is exceeded.  The output image consists of the number of
% terms summed until the threshold was exceeded at each offset.
% 
% The threshold is established in one of three ways.  First, you may
% enter the threshold directly with the -threshold flag.  Second, a
% number of pixels are randomly sampled (set the number with
% -pix_number) and the sum over all the pixels in the window
% established.  Then the threshold is set at the frac'th percentile of
% this sampled population, where frac is set with the -sum_fraction
% flag.  Finally, the third method is the same as the second, except
% instead of setting the absolute number of pixels to sample, the sample
% size is some fraction of the total number of pixels determined by the
% -pix_fraction flag.
%
%  
%
%  EXAMPLES
% See the html tutorial in $REGISTER/examples/html/README_FIRST.html
%
%  "SEE ALSO"
%
%  RESTRICTIONS 
%
%  REFERENCES 
%
%  COPYRIGHT
% Copyright (C) 1996 - 1997, University of New Mexico.  All rights reserved.
% 


function varargout = krc_seqsim(varargin)
if nargin ==0
  Inputs={};arglist={'',''};
elseif nargin ==1
  Inputs=varargin{1};arglist={'',''};
elseif nargin ==2
  Inputs=varargin{1}; arglist=varargin{2};
else error('Usage: [out1,..] = krc_seqsim(Inputs,arglist).');
end
if size(arglist,2)~=2
  error('arglist must be of form {''ParameterTag1'',value1;''ParameterTag2'',value2}')
 end
narglist={'iref', '__input';'idist', '__input';'o', '__output';'sum_fraction', 0.75;'seed', 1234567;'threshold', 100;'pix_number', 20;'pix_fraction', 0.01};
maxval={0,0,0,1,2,0,2,1};
minval={0,0,0,0,2,0,2,0};
istoggle=[0,0,0,1,1,1,1,1];
was_set=istoggle * 0;
paramtype={'InputFile','InputFile','OutputFile','Double','Integer','Double','Integer','Double'};
% identify the input arrays and assign them to the arguments as stated by the user
if ~iscell(Inputs)
Inputs = {Inputs};
end
NumReqOutputs=1; nextinput=1; nextoutput=1;
  for ii=1:size(arglist,1)
  wasmatched=0;
  for jj=1:size(narglist,1)
   if strcmp(arglist{ii,1},narglist{jj,1})  % a given argument was matched to the possible arguments
     wasmatched = 1;
     was_set(jj) = 1;
     if strcmp(narglist{jj,2}, '__input')
      if (nextinput > length(Inputs)) 
        error(['Input ' narglist{jj,1} ' has no corresponding input!']); 
      end
      narglist{jj,2} = 'OK_in';
      nextinput = nextinput + 1;
     elseif strcmp(narglist{jj,2}, '__output')
      if (nextoutput > nargout) 
        error(['Output nr. ' narglist{jj,1} ' is not present in the assignment list of outputs !']); 
      end
      if (isempty(arglist{ii,2}))
        narglist{jj,2} = 'OK_out';
      else
        narglist{jj,2} = arglist{ii,2};
      end

      nextoutput = nextoutput + 1;
      if (minval{jj} == 0)  
         NumReqOutputs = NumReqOutputs - 1;
      end
     elseif isstr(arglist{ii,2})
      narglist{jj,2} = arglist{ii,2};
     else
        if strcmp(paramtype{jj}, 'Integer') & (round(arglist{ii,2}) ~= arglist{ii,2})
            error(['Argument ' arglist{ii,1} ' is of integer type but non-integer number ' arglist{ii,2} ' was supplied']);
        end
        if (minval{jj} ~= 0 | maxval{jj} ~= 0)
          if (minval{jj} == 1 & maxval{jj} == 1 & arglist{ii,2} < 0)
            error(['Argument ' arglist{ii,1} ' must be bigger or equal to zero!']);
          elseif (minval{jj} == -1 & maxval{jj} == -1 & arglist{ii,2} > 0)
            error(['Argument ' arglist{ii,1} ' must be smaller or equal to zero!']);
          elseif (minval{jj} == 2 & maxval{jj} == 2 & arglist{ii,2} <= 0)
            error(['Argument ' arglist{ii,1} ' must be bigger than zero!']);
          elseif (minval{jj} == -2 & maxval{jj} == -2 & arglist{ii,2} >= 0)
            error(['Argument ' arglist{ii,1} ' must be smaller than zero!']);
          elseif (minval{jj} ~= maxval{jj} & arglist{ii,2} < minval{jj})
            error(['Argument ' arglist{ii,1} ' must be bigger than ' num2str(minval{jj})]);
          elseif (minval{jj} ~= maxval{jj} & arglist{ii,2} > maxval{jj})
            error(['Argument ' arglist{ii,1} ' must be smaller than ' num2str(maxval{jj})]);
          end
        end
     end
     if ~strcmp(narglist{jj,2},'OK_out') &  ~strcmp(narglist{jj,2},'OK_in') 
       narglist{jj,2} = arglist{ii,2};
     end
   end
   end
   if (wasmatched == 0 & ~strcmp(arglist{ii,1},''))
        error(['Argument ' arglist{ii,1} ' is not a valid argument for this function']);
   end
end
% match the remaining inputs/outputs to the unused arguments and test for missing required inputs
 for jj=1:size(narglist,1)
     if  strcmp(paramtype{jj}, 'Toggle')
        if (narglist{jj,2} ==0)
          narglist{jj,1} = ''; 
        end;
        narglist{jj,2} = ''; 
     end;
     if  ~strcmp(narglist{jj,2},'__input') && ~strcmp(narglist{jj,2},'__output') && istoggle(jj) && ~ was_set(jj)
          narglist{jj,1} = ''; 
          narglist{jj,2} = ''; 
     end;
     if strcmp(narglist{jj,2}, '__input')
      if (minval{jj} == 0)  % meaning this input is required
        if (nextinput > size(Inputs)) 
           error(['Required input ' narglist{jj,1} ' has no corresponding input in the list!']); 
        else
          narglist{jj,2} = 'OK_in';
          nextinput = nextinput + 1;
        end
      else  % this is an optional input
        if (nextinput <= length(Inputs)) 
          narglist{jj,2} = 'OK_in';
          nextinput = nextinput + 1;
        else 
          narglist{jj,1} = '';
          narglist{jj,2} = '';
        end;
      end;
     else 
     if strcmp(narglist{jj,2}, '__output')
      if (minval{jj} == 0) % this is a required output
        if (nextoutput > nargout & nargout > 1) 
           error(['Required output ' narglist{jj,1} ' is not stated in the assignment list!']); 
        else
          narglist{jj,2} = 'OK_out';
          nextoutput = nextoutput + 1;
          NumReqOutputs = NumReqOutputs-1;
        end
      else % this is an optional output
        if (nargout - nextoutput >= NumReqOutputs) 
          narglist{jj,2} = 'OK_out';
          nextoutput = nextoutput + 1;
        else 
          narglist{jj,1} = '';
          narglist{jj,2} = '';
        end;
      end
     end
  end
end
if nargout
   varargout = cell(1,nargout);
else
  varargout = cell(1,1);
end
global KhorosRoot
if exist('KhorosRoot') && ~isempty(KhorosRoot)
w=['"' KhorosRoot];
else
if ispc
  w='"C:\Program Files\dip\khorosBin\';
else
[s,w] = system('which cantata');
w=['"' w(1:end-8)];
end
end
[varargout{:}]=callKhoros([w 'rc_seqsim"  '],Inputs,narglist);