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0009
0010 function imagen = do_overlap(Im,M,N,ov)
0011
0012 a=(M-N)/2;
0013 v = [zeros(1,a-ov/2) linspace(0,1,ov) ones(1,M-2*(a-ov/2+ov)) linspace(1,0,ov) zeros(1,a-ov/2)];
0014 p = v'*v;
0015
0016 [nv nh]=size(Im);
0017
0018 nhor = nh/M;
0019 nver = nv/M;
0020
0021 imagen = zeros(nhor*N,nver*N);
0022
0023 for i=2:nver-1
0024 for j=2:nhor-1
0025 cf = 1;
0026 Algo = zeros(2*N+M);
0027 SumaPesos = zeros(2*N+M);
0028 for k=i-1:i+1
0029 cc = 1;
0030 for r=j-1:j+1
0031 B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0032 B = B.*p;
0033
0034 Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0035 SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0036 cc = cc+N;
0037 end
0038 cf = cf + N;
0039 end
0040
0041 Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0042
0043 Bloque = Algo(M/2+N/2+1:M/2+N/2+N,M/2+N/2+1:M/2+N/2+N);
0044
0045 imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0046
0047 end
0048 end
0049
0050 i=1;
0051
0052 for j=2:nhor-1
0053 cf = 1;
0054 Algo = zeros(M+N,2*N+M);
0055 SumaPesos = zeros(M+N,2*N+M);
0056 for k=i:i+1
0057 cc = 1;
0058 for r=j-1:j+1
0059 B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0060 B = B.*p;
0061
0062 Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0063 SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0064 cc = cc+N;
0065 end
0066 cf = cf + N;
0067 end
0068
0069 Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0070
0071 Bloque = Algo(M/2-N/2+1:M/2-N/2+N,M/2+N/2+1:M/2+N/2+N);
0072
0073 imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0074
0075 end
0076
0077 i=nver;
0078
0079 for j=2:nhor-1
0080 cf = 1;
0081 Algo = zeros(M+N,2*N+M);
0082 SumaPesos = zeros(M+N,2*N+M);
0083 for k=i-1:i
0084 cc = 1;
0085 for r=j-1:j+1
0086 B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0087 B = B.*p;
0088
0089 Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0090 SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0091 cc = cc+N;
0092 end
0093 cf = cf + N;
0094 end
0095
0096 Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0097
0098 Bloque = Algo(M/2+N/2+1:M/2+N/2+N,M/2+N/2+1:M/2+N/2+N);
0099
0100 imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0101
0102 end
0103
0104 j=1;
0105
0106 for i=2:nver-1
0107 cf = 1;
0108 Algo = zeros(2*N+M,M+N);
0109 SumaPesos = zeros(2*N+M,M+N);
0110 for k=i-1:i+1
0111 cc = 1;
0112 for r=j:j+1
0113 B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0114 B = B.*p;
0115
0116 Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0117 SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0118 cc = cc+N;
0119 end
0120 cf = cf + N;
0121 end
0122
0123 Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0124
0125 Bloque = Algo(M/2+N/2+1:M/2+N/2+N,M/2-N/2+1:M/2-N/2+N);
0126
0127 imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0128
0129 end
0130
0131 j=nhor;
0132
0133 for i=2:nver-1
0134 cf = 1;
0135 Algo = zeros(2*N+M,M+N);
0136 SumaPesos = zeros(2*N+M,M+N);
0137 for k=i-1:i+1
0138 cc = 1;
0139 for r=j-1:j
0140 B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0141 B = B.*p;
0142
0143 Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0144 SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0145 cc = cc+N;
0146 end
0147 cf = cf + N;
0148 end
0149
0150 Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0151
0152 Bloque = Algo(M/2+N/2+1:M/2+N/2+N,M/2+N/2+1:M/2+N/2+N);
0153
0154 imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0155
0156 end
0157
0158 cf = 1;
0159 Algo = zeros(M+N,M+N);
0160 SumaPesos = zeros(M+N,M+N);
0161
0162 i=1;
0163 j=1;
0164
0165 for k=i:i+1
0166 cc = 1;
0167 for r=j:j+1
0168 B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0169 B = B.*p;
0170
0171 Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0172 SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0173 cc = cc+N;
0174 end
0175 cf = cf + N;
0176 end
0177
0178 Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0179
0180 Bloque = Algo(M/2-N/2+1:M/2-N/2+N,M/2-N/2+1:M/2-N/2+N);
0181
0182 imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0183
0184 cf = 1;
0185 Algo = zeros(M+N,M+N);
0186 SumaPesos = zeros(M+N,M+N);
0187
0188 i=1;
0189 j=nhor;
0190
0191 for k=i:i+1
0192 cc = 1;
0193 for r=j-1:j
0194 B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0195 B = B.*p;
0196
0197 Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0198 SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0199 cc = cc+N;
0200 end
0201 cf = cf + N;
0202 end
0203
0204 Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0205
0206 Bloque = Algo(M/2-N/2+1:M/2-N/2+N,M/2+N/2+1:M/2+N/2+N);
0207
0208 imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0209
0210 cf = 1;
0211 Algo = zeros(M+N,M+N);
0212 SumaPesos = zeros(M+N,M+N);
0213
0214 i=nver;
0215 j=1;
0216
0217 for k=i-1:i
0218 cc = 1;
0219 for r=j:j+1
0220 B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0221 B = B.*p;
0222
0223 Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0224 SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0225 cc = cc+N;
0226 end
0227 cf = cf + N;
0228 end
0229
0230 Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0231
0232 Bloque = Algo(M/2+N/2+1:M/2+N/2+N,M/2-N/2+1:M/2-N/2+N);
0233
0234 imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0235
0236 cf = 1;
0237 Algo = zeros(M+N,M+N);
0238 SumaPesos = zeros(M+N,M+N);
0239
0240 i=nver;
0241 j=nhor;
0242
0243 for k=i-1:i
0244 cc = 1;
0245 for r=j-1:j
0246 B = Im( (k-1)*M+1:k*M, (r-1)*M+1:r*M);
0247 B = B.*p;
0248
0249 Algo(cf:cf+M-1,cc:cc+M-1) = Algo(cf:cf+M-1,cc:cc+M-1)+B;
0250 SumaPesos(cf:cf+M-1,cc:cc+M-1) = SumaPesos(cf:cf+M-1,cc:cc+M-1) +p;
0251 cc = cc+N;
0252 end
0253 cf = cf + N;
0254 end
0255
0256 Algo(SumaPesos~=0) = Algo(SumaPesos~=0)./SumaPesos(SumaPesos~=0);
0257
0258 Bloque = Algo(M/2+N/2+1:M/2+N/2+N,M/2+N/2+1:M/2+N/2+N);
0259
0260 imagen ((i-1)*N+1:i*N,(j-1)*N+1:j*N) = Bloque;
0261
0262