do_overlapping

PURPOSE ^

function imagen = do_overlapping(Im,M,N,ov)

SYNOPSIS ^

function imagen = do_overlapping(Im,M,N,ov)

DESCRIPTION ^

   function imagen = do_overlapping(Im,M,N,ov)

 Given an image with blocks of size MxM, it gives back
 an image with NxN blocks taking into acount ovelapping
 between blocks (to relax the transitions)

 Overlapping is preformed as in pesos_overlapping

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 %   function imagen = do_overlapping(Im,M,N,ov)
0002 %
0003 % Given an image with blocks of size MxM, it gives back
0004 % an image with NxN blocks taking into acount ovelapping
0005 % between blocks (to relax the transitions)
0006 %
0007 % Overlapping is preformed as in pesos_overlapping
0008 %
0009 
0010 function imagen = do_overlapping(Im,M,N,ov)
0011 
0012 p=pesos_overlapping(M,N,ov);
0013 
0014 [nv nh]=size(Im);
0015 
0016 nhor = nh/M;
0017 nver = nv/M;
0018 
0019 imagen = zeros(nhor*N,nver*N);
0020 
0021 for i=2:nver-1
0022    for j=2:nhor-1
0023       cf = 1;
0024       Algo = zeros(2*N+M);
0025       SumaPesos = zeros(2*N+M);
0026       for k=i-1:i+1
0027          cc = 1;
0028          for r=j-1:j+1
0029             B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0030             B = B.*p;
0031 
0032             Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0033             SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0034             cc = cc+N;
0035          end
0036          cf = cf + N;
0037       end
0038 
0039       Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0040 
0041       Bloque = Algo(M/2+N/2+1:M/2+N/2+N,M/2+N/2+1:M/2+N/2+N);
0042 
0043       imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0044 
0045    end
0046 end
0047 
0048 i=1;
0049 
0050 for j=2:nhor-1
0051    cf = 1;
0052    Algo = zeros(M+N,2*N+M);
0053    SumaPesos = zeros(M+N,2*N+M);
0054    for k=i:i+1
0055       cc = 1;
0056       for r=j-1:j+1
0057          B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0058          B = B.*p;
0059 
0060          Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0061          SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0062          cc = cc+N;
0063       end
0064       cf = cf + N;
0065    end
0066 
0067    Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0068 
0069    Bloque = Algo(M/2-N/2+1:M/2-N/2+N,M/2+N/2+1:M/2+N/2+N);
0070 
0071    imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0072 
0073 end
0074 
0075 i=nver;
0076 
0077 for j=2:nhor-1
0078    cf = 1;
0079    Algo = zeros(M+N,2*N+M);
0080    SumaPesos = zeros(M+N,2*N+M);
0081    for k=i-1:i
0082       cc = 1;
0083       for r=j-1:j+1
0084          B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0085          B = B.*p;
0086 
0087          Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0088          SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0089          cc = cc+N;
0090       end
0091       cf = cf + N;
0092    end
0093 
0094    Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0095 
0096    Bloque = Algo(M/2+N/2+1:M/2+N/2+N,M/2+N/2+1:M/2+N/2+N);
0097 
0098    imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0099 
0100 end
0101 
0102 j=1;
0103 
0104 for i=2:nver-1
0105    cf = 1;
0106    Algo = zeros(2*N+M,M+N);
0107    SumaPesos = zeros(2*N+M,M+N);
0108    for k=i-1:i+1
0109       cc = 1;
0110       for r=j:j+1
0111          B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0112          B = B.*p;
0113 
0114          Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0115          SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0116          cc = cc+N;
0117       end
0118       cf = cf + N;
0119    end
0120 
0121    Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0122 
0123    Bloque = Algo(M/2+N/2+1:M/2+N/2+N,M/2-N/2+1:M/2-N/2+N);
0124 
0125    imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0126 
0127 end
0128 
0129 j=nhor;
0130 
0131 for i=2:nver-1
0132    cf = 1;
0133    Algo = zeros(2*N+M,M+N);
0134    SumaPesos = zeros(2*N+M,M+N);
0135    for k=i-1:i+1
0136       cc = 1;
0137       for r=j-1:j
0138          B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0139          B = B.*p;
0140 
0141          Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0142          SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0143          cc = cc+N;
0144       end
0145       cf = cf + N;
0146    end
0147 
0148    Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0149 
0150    Bloque = Algo(M/2+N/2+1:M/2+N/2+N,M/2+N/2+1:M/2+N/2+N);
0151 
0152    imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0153 
0154 end
0155 
0156 cf = 1;
0157 Algo = zeros(M+N,M+N);
0158 SumaPesos = zeros(M+N,M+N);
0159 
0160 i=1;
0161 j=1;
0162 
0163 for k=i:i+1
0164    cc = 1;
0165    for r=j:j+1
0166       B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0167       B = B.*p;
0168 
0169       Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0170       SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0171       cc = cc+N;
0172    end
0173    cf = cf + N;
0174 end
0175 
0176 Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0177 
0178 Bloque = Algo(M/2-N/2+1:M/2-N/2+N,M/2-N/2+1:M/2-N/2+N);
0179 
0180 imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0181 
0182 cf = 1;
0183 Algo = zeros(M+N,M+N);
0184 SumaPesos = zeros(M+N,M+N);
0185 
0186 i=1;
0187 j=nhor;
0188 
0189 for k=i:i+1
0190    cc = 1;
0191    for r=j-1:j
0192       B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0193       B = B.*p;
0194 
0195       Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0196       SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0197       cc = cc+N;
0198    end
0199    cf = cf + N;
0200 end
0201 
0202 Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0203 
0204 Bloque = Algo(M/2-N/2+1:M/2-N/2+N,M/2+N/2+1:M/2+N/2+N);
0205 
0206 imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0207 
0208 cf = 1;
0209 Algo = zeros(M+N,M+N);
0210 SumaPesos = zeros(M+N,M+N);
0211 
0212 i=nver;
0213 j=1;
0214 
0215 for k=i-1:i
0216    cc = 1;
0217    for r=j:j+1
0218       B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0219       B = B.*p;
0220 
0221       Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0222       SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0223       cc = cc+N;
0224    end
0225    cf = cf + N;
0226 end
0227 
0228 Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0229 
0230 Bloque = Algo(M/2+N/2+1:M/2+N/2+N,M/2-N/2+1:M/2-N/2+N);
0231 
0232 imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0233 
0234 cf = 1;
0235 Algo = zeros(M+N,M+N);
0236 SumaPesos = zeros(M+N,M+N);
0237 
0238 i=nver;
0239 j=nhor;
0240 
0241 for k=i-1:i
0242    cc = 1;
0243    for r=j-1:j
0244       B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0245       B = B.*p;
0246 
0247       Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0248       SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0249       cc = cc+N;
0250    end
0251    cf = cf + N;
0252 end
0253 
0254 Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0255 
0256 Bloque = Algo(M/2+N/2+1:M/2+N/2+N,M/2+N/2+1:M/2+N/2+N);
0257 
0258 imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0259 
0260

Generated on Fri 07-Mar-2014 13:28:33 by m2html © 2005