fulllink-solver/OpticalLoadRadiation/SNR/SNR_simulation.m

% <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD>

function [SNR_output, mmm_pho_SNR, Picture_output] = SNR_simulation(Sensor_input,Optic_input,T_imaging_input,Light_input,pho_input,pho_L_infor,site_str)

%% Sensor_input ̽<><CCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܲ<EFBFBD><DCB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
I_dark = Sensor_input(1); % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λe-/s
Fn = Sensor_input(2); % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
QE = Sensor_input(3); % ƽ<><C6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Gain = Sensor_input(4); % <20><><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Noise_read = Sensor_input(5); % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λe-
FWC = Sensor_input(6); % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λe-
ADC = Sensor_input(7); % <20><><EFBFBD><EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λbit

% <20><><EFBFBD><EFBFBD>δָ<CEB4><D6B8>̽<EFBFBD><CCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܲ<EFBFBD><DCB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD>HR4256<35><36><EFBFBD>ܲ<EFBFBD><DCB2><EFBFBD><EFBFBD><EFBFBD>
if isnan(I_dark)
    I_dark  = 100*1000; % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λe-/s
end
if isnan(Fn)
    Fn = 1; % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
end
if isnan(QE)
    QE = 0.6; % ƽ<><C6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
end
if isnan(Gain)
    Gain = 2.0; % <20><><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
end
if isnan(Noise_read)
    Noise_read = 120; % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λe-
end
if isnan(FWC)
    FWC = 140*1000; % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λe-
end
if isnan(ADC)
    ADC = 12; % <20><><EFBFBD><EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λbit
end



%% Optic_input <20><>ѧϵͳ<CFB5><CDB3><EFBFBD>ܲ<EFBFBD><DCB2><EFBFBD>
Lambda_center = Optic_input(1); % <20><><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD>,<2C><>λnm
D_aperture = Optic_input(2); % <20><>ѧϵͳ<CFB5>ھ<EFBFBD><DABE><EFBFBD><EFBFBD><EFBFBD>λm
GSD = Optic_input(3); % <20><><EFBFBD>µ<EFBFBD><C2B5>ֱ<EFBFBD><D6B1>ʣ<EFBFBD><CAA3><EFBFBD>λm
H_orbit = Optic_input(4); % <20><><EFBFBD><EFBFBD><EFBFBD>߶ȣ<DFB6><C8A3><EFBFBD>λkm
Tao0 = Optic_input(5); % <20><>ѧϵͳ͸<CDB3><CDB8><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Epslong = Optic_input(6); % <20><>ѧϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><C8A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

% <20><><EFBFBD><EFBFBD>δָ<CEB4><D6B8><EFBFBD><EFBFBD>ѧϵͳ<CFB5><CDB3><EFBFBD>ܲ<EFBFBD><DCB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD><EFBFBD>ܲ<EFBFBD><DCB2><EFBFBD><EFBFBD><EFBFBD>
if isnan(Lambda_center)
    Lambda_center = 650; % <20><><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD>,<2C><>λnm
end
if isnan(D_aperture)
    D_aperture = 1.2; % <20><>ѧϵͳ<CFB5>ھ<EFBFBD><DABE><EFBFBD><EFBFBD><EFBFBD>λm
end
if isnan(GSD)
    GSD = 0.25; % <20><><EFBFBD>µ<EFBFBD><C2B5>ֱ<EFBFBD><D6B1>ʣ<EFBFBD><CAA3><EFBFBD>λm
end
if isnan(H_orbit)
    H_orbit = 500; % <20><><EFBFBD><EFBFBD><EFBFBD>߶ȣ<DFB6><C8A3><EFBFBD>λkm
end
if isnan(Tao0)
    Tao0 = 0.8; % <20><>ѧϵͳ͸<CDB3><CDB8><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
end
if isnan(Epslong)
    Epslong = 0.15; % <20><>ѧϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><C8A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
end

%% <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
t_TDI = T_imaging_input(1); % <20><><EFBFBD><EFBFBD>ʱ<EFBFBD>䣬<EFBFBD><E4A3AC>λs<CEBB><73><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><D4B2><EFBFBD><EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ּ<EFBFBD><D6BC><EFBFBD>M
M_TDI = T_imaging_input(2); % <20><><EFBFBD>ּ<EFBFBD><D6BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>٣<EFBFBD><D9A3><EFBFBD><EFBFBD><EFBFBD>

% <20><><EFBFBD><EFBFBD>δָ<CEB4><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD><EFBFBD>ܲ<EFBFBD><DCB2><EFBFBD><EFBFBD><EFBFBD> 
if isnan(M_TDI)
    M_TDI = 64; % <20><><EFBFBD>ּ<EFBFBD><D6BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>٣<EFBFBD><D9A3><EFBFBD><EFBFBD><EFBFBD>
end
if isnan(t_TDI)
    GM = 398603*10^9; % G:<3A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>M<EFBFBD><4D><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    R = 6371*1000; % R: <20><><EFBFBD><EFBFBD><EFBFBD>뾶
    H = H_orbit*1000; % H: <20><><EFBFBD><EFBFBD><EFBFBD>߶<EFBFBD>,<2C><>λm
    rs = R + H;% <20>볤<EFBFBD><EBB3A4>a<EFBFBD><61><EFBFBD><EFBFBD>λkm
    Vx = sqrt(GM/rs); % <20><><EFBFBD><EFBFBD><EFBFBD>ٶ<EFBFBD>
    ws = Vx/rs; % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶ<EFBFBD>
    GSD_Vx = R*ws; % <20><><EFBFBD>ٶ<EFBFBD> <20><>/ÿ<><C3BF>
    t_TDI_single = GSD/GSD_Vx; % <20><><EFBFBD>л<EFBFBD><D0BB><EFBFBD>ʱ<EFBFBD><CAB1>
    t_TDI = M_TDI*t_TDI_single ; % <20><><EFBFBD><EFBFBD>ʱ<EFBFBD>䣬<EFBFBD><E4A3AC>λs
end

%% <20><>ͫ<EFBFBD><CDAB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
% <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
% <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD><EBA3AC>Ĭ<EFBFBD>ϸ<EFBFBD><CFB8>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
if isnan(Light_input)
    Light_input = [4.35,13.36,55.7]; % 500-900nm,<2C><>γ<EFBFBD>ļ<EFBFBD><C4BC><EFBFBD>10<31><30>@0.05<EFBFBD><EFBFBD>30<EFBFBD><EFBFBD>@0.2<EFBFBD><EFBFBD> 60<36><30>@0.65<EFBFBD><EFBFBD><EFBFBD><EFBFBD>λW/m2/sr
end
h_planck = 6.63*1E-34; % <20><><EFBFBD>ʿ˳<CABF><CBB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λJs
c_light = 3.0*1E8; % <20><><EFBFBD>٣<EFBFBD><D9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λm/s

%% <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
S_signal_with_L = QE*(GSD/H_orbit/1000)^2*pi*(1-Epslong)/4*Tao0*(Lambda_center*1E-9)/(h_planck*c_light)*D_aperture^2*t_TDI; % <20>źŵ<C5BA><C5B5><EFBFBD><EFBFBD><EFBFBD>/<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ϵ<EFBFBD><CFB5>
S_signal = S_signal_with_L*Light_input; % <20>źŵ<C5BA><C5B5><EFBFBD><EFBFBD><EFBFBD>
S_signal(S_signal > FWC/Gain) = FWC/Gain; % <20>źŵ<C5BA><C5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>壬<EFBFBD><E5A3AC>ʾ̽<CABE><CCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
SNR_ratio = Gain*S_signal./sqrt(Fn^2*Gain^2*S_signal + Gain^2*I_dark*t_TDI+ Gain^2*Noise_read^2);  % <20><><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><C8A3><EFBFBD><EFBFBD><EFBFBD>
SNR_output = 20*log10(SNR_ratio); % <20><><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>dB


%% pho_input <20><><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼƬ<CDBC><C6AC><EFBFBD><EFBFBD>
% <20><><EFBFBD><EFBFBD><EFBFBD>ʷֲ<CAB7><D6B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
if isnan(pho_input)
    Picture_output = nan;
    mmm_pho_SNR = nan;
else
    if length(size(pho_input)) >= 3 % <20><>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>Ϊrgbͼ<62><CDBC>
        pho_input = rgb2gray(pho_input);
        pho_input = im2double(pho_input);
    else
        %         length(size(pho_input)) <= 2 % <20><>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>Ϊͼ<CEAA><CDBC><EFBFBD><EFBFBD><EFBFBD>߾<EFBFBD><DFBE><EFBFBD>
        if max(pho_input)<=1.0 % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0-1<>ľ<EFBFBD><C4BE><EFBFBD>,<2C>Ѿ<EFBFBD><D1BE><EFBFBD>double<6C><65>
            ;
        else
            pho_input = im2double(pho_input);
        end
    end
    
    %% pho_L_infor <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>L<EFBFBD>뷴<EFBFBD><EBB7B4><EFBFBD><EFBFBD>pho<68><6F>k,b<><62><EFBFBD><EFBFBD>
    pho_max = pho_L_infor(1); % <20><><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD>
    if isnan(pho_max)
        pho_max = 0.9; % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD>ǾͰ<C7BE>0.9<EFBFBD><EFBFBD><EFBFBD>Ƶķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    end
    if ~isnan(pho_max)
        pho_input = pho_max*pho_input/max(max(pho_input)); % <20><>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>pho_max
    end    
    
    %% <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>  ͼƬΪPicture_output.tiff
    [sizeM,sizeN] = size(pho_input); %<25><><EFBFBD>ߴ<EFBFBD>
    pho_L_k = pho_L_infor(2);  % pho<68><6F><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>L<EFBFBD><4C>б<EFBFBD><D0B1>k
    pho_L_b = pho_L_infor(3);  % pho<68><6F><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>L<EFBFBD>ı<EFBFBD><C4B1><EFBFBD>b
    
    % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>/ƽ<><C6BD>/<2F><>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD>/ƽ<><C6BD>/<2F><>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    mmm_pho = [max(pho_input(:)),mean(pho_input(:)),min(pho_input(:))]; % ƽ<><C6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    S_signal_mmm = S_signal_with_L*(pho_L_k*mmm_pho + pho_L_b); % <20>źŵ<C5BA><C5B5><EFBFBD><EFBFBD><EFBFBD>
    S_signal_mmm(S_signal_mmm  > FWC/Gain) = FWC/Gain; % <20>źŵ<C5BA><C5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>壬<EFBFBD><E5A3AC>ʾ̽<CABE><CCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    SNR_ratio_mmm  = Gain*S_signal_mmm./sqrt(Fn^2*Gain^2*S_signal_mmm  + Gain^2*I_dark*t_TDI+ Gain^2*Noise_read^2);  % <20><><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><C8A3><EFBFBD><EFBFBD><EFBFBD>
    SNR_output_mmm  = 20*log10(SNR_ratio_mmm); % <20><><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>dB
    mmm_pho_SNR = [mmm_pho; SNR_output_mmm];
    
    % ͼ<><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>źš<C5BA>DN
    L_light = pho_L_k*pho_input + pho_L_b; % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    S_signal = S_signal_with_L*L_light; % <20>źŵ<C5BA><C5B5><EFBFBD><EFBFBD><EFBFBD>
    % noise_white = 1/0.289*(rand(sizeM,sizeN)-0.5); %  <20><>ֵΪ0<CEAA><30>rmsΪ1
    noise_S_signal = Fn*sqrt(S_signal).*(1/0.289*(rand(sizeM,sizeN)-0.5)); % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    noise_S_dark = sqrt(I_dark*t_TDI).*(1/0.289*(rand(sizeM,sizeN)-0.5));  % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    noise_S_read = Noise_read*(1/0.289*(rand(sizeM,sizeN)-0.5));  % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    S_signal_output = S_signal + I_dark*t_TDI + noise_S_signal + noise_S_dark + noise_S_read; % <20>ܵ<EFBFBD><DCB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD>+<2B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>+<2B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    S_signal_output(S_signal_output>FWC/Gain) = FWC/Gain; % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    DN_signal_output = round(S_signal_output/(FWC/Gain)*(2^ADC -1)); %
    
    %imwrite(uint8(DN_signal_output/max(DN_signal_output(:))*255),[site_str,'Picture_output_LaShen.png']);
    imwrite(uint8(DN_signal_output/max(DN_signal_output(:))*255),site_str+'Picture_output_LaShen.png');
    if ADC > 16;
        disp('<EFBFBD><EFBFBD>֧<EFBFBD><EFBFBD>16bit<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>')
    elseif (ADC >8)&&(ADC<=16)
        Picture_output = uint16(DN_signal_output); % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
        %imwrite(Picture_output,[site_str,'Picture_output.tiff']);
        imwrite(Picture_output,site_str+'Picture_output.tiff');
    else
        Picture_output = uint8(DN_signal_output); % <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
        %imwrite(Picture_output,[site_str,'Picture_output.tiff']);
        imwrite(Picture_output,site_str+'Picture_output.tiff');
    end
end