Why do I get this error?
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I = read_raw('D:\arstonFlowRateBPL\Dnoise\DnoiseA\Default');%% The folder path containing a set of dark count pictures
Nd = 5;% pixel window
[nd, vard] = estimate_darkcurrent(I,Nd);%% camera dark current and its variance£»
%% Target:relection standard ,Determine the system noise characteristics and the coherence factor
%sample_path is a collection of data paths of reflection standard,which can be observed from 'estimate_var'.
x1 = 250;x2 = 290;y1 = 450;y2 = 490; % The range selection is determined by the location of the fat emulsion
T = 20;t = 100; % T is the camera exposure time£¬t is the time between taking photos
function II = read_raw(sample_path)
Readfiles = dir(fullfile(sample_path, '*.raw'));%% Data Path
for number = 1:length(Readfiles)
filename = strcat(sample_path,Readfiles(number).name);
fid1 = fopen(filename);
data1 = fread(fid1,964*646,'uint16'); %% Data attributes
image1 = reshape(data1,646,964)';
fclose(fid1);
I1 = image1;
if number == 1
II = I1;
else
II(:,:,number) = I1;
end
if number>100
break
end
end
Output argument "II" (and maybe others) not assigned during call to "read_raw".
Error in main_program__Systemc_alibration (line 4)
I = read_raw('D:\arstonFlowRateBPL\Dnoise\DnoiseA\Default');%% The folder path containing a set of dark count pictures
回答（1 个）
Image Analyst
2022-1-28
You never got into the if block to set II. Try initializing it to null to avoid that particular error
I = read_raw('D:\arstonFlowRateBPL\Dnoise\DnoiseA\Default');%% The folder path containing a set of dark count pictures
Nd = 5;% pixel window
[nd, vard] = estimate_darkcurrent(I,Nd);%% camera dark current and its variance£»
%% Target:relection standard ,Determine the system noise characteristics and the coherence factor
%sample_path is a collection of data paths of reflection standard,which can be observed from 'estimate_var'.
x1 = 250;x2 = 290;y1 = 450;y2 = 490; % The range selection is determined by the location of the fat emulsion
T = 20;t = 100; % T is the camera exposure time£¬t is the time between taking photos
function II = read_raw(sample_path)
II = [];
Readfiles = dir(fullfile(sample_path, '*.raw'));%% Data Path
if isempty(Readfiles)
errorMessage = sprintf('No files found in folder "%s"!', sample_path);
uiwait(errordlg(errorMessage))
end
for number = 1:length(Readfiles)
filename = strcat(sample_path,Readfiles(number).name);
fid1 = fopen(filename);
data1 = fread(fid1,964*646,'uint16'); %% Data attributes
image1 = reshape(data1,646,964)';
fclose(fid1);
I1 = image1;
if number == 1
II = I1;
else
II(:,:,number) = I1;
end
if number>100
break
end
end
% Warn user if we never assigned II
if isempty(II)
errorMessage = 'You never assigned II to be anything!'
uiwait(errordlg(errorMessage))
end
end
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2022-1-28
2022-1-28
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