Cannot read '*.tif ' file error message despite file being analyzed

Question

Lina Koronfel 2021-2-26

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/756644-cannot-read-tif-file-error-message-despite-file-being-analyzed

评论： Lina Koronfel 2021-3-30

I created a MATLAB code that analyzes and applies functions to multiple *.tif files in a for loop. Although the loop is executed for the desired number of iterations and a resulting figure that shows the product is displayed, the following error message is also displayed after the final iteration:

Error using imread (line 438)
TIFF library error - 'TIFFFetchDirectory:  Can not read TIFF directory count.'

This is problamatic because the product of this function must be used in anothe code. Even though I acquire the product from the function, I cannot proceed using it in the parent code because of the error message.

I would appreciate your help on how to solve this issue without the error message. Thank you!

4 个评论
显示 2更早的评论隐藏 2更早的评论

kameshwar saini 2021-2-26

在 MATLAB Online 中打开

clc; clear variables; close all;
N = 10^5;
d1 = 0:10:100; d2 = 500;    %Distances of users from base station (BS)
a1 = 0.75; a2 = 0.25;   %Power allocation factors
eta = 4;                %Path loss exponent
for d1=0:10:100
%Generate rayleigh fading coefficient for both users
h1 = sqrt(d1^-eta)*(randn(1,N)+1i*randn(1,N))/sqrt(2);
h2 = sqrt(d2^-eta)*(randn(1,N)+1i*randn(1,N))/sqrt(2);
end
g1 = (abs(h1)).^2;
g2 = (abs(h2)).^2;
Pt = 0:2:40;                %Transmit power in dBm
pt = (10^-3)*10.^(Pt/10);   %Transmit power in linear scale
BW = 10^6;                  %System bandwidth
No = -174 + 10*log10(BW);   %Noise power (dBm)
no = (10^-3)*10.^(No/10);   %Noise power (linear scale)
p = length(Pt);
p1 = zeros(1,length(Pt));
p2 = zeros(1,length(Pt));
d = length(d1);
rate1 = 1; rate2 = 2;       %Target rate of users in bps/Hz
  for u = 1:p
    %Calculate SNRs
    gamma_1 = a1*pt(u)*g1./(a2*pt(u)*g1+no);
    gamma_12 = a1*pt(u)*g2./(a2*pt(u)*g2+no);
    gamma_2 = a2*pt(u)*g2/no;
    
    %Calculate achievable rates
    R1 = log2(1+gamma_1);
    R12 = log2(1+gamma_12);
    R2 = log2(1+gamma_2);
    
    %Find average of achievable rates
    R1_av(u) = mean(R1);
    R12_av(u) = mean(R12);
    R2_av(u) = mean(R2);
    %Check for outage
    for k = 1:N
        if R1(k) < rate1
            p1(u) = p1(u)+1;
        end
        if (R12(k) < rate1)||(R2(k) < rate2)
            p2(u) = p2(u)+1;
        end
    end
  end
figure;
plot(d1, R1_av, 'linewidth', 1.5); hold on; grid on;

I want to plot the graph between d1 and R1_av but I am getting blank plot . Please help me

Walter Roberson 2021-3-2

@kameshwar saini You asked this at https://www.mathworks.com/matlabcentral/answers/756649-i-want-to-plot-the-graph-between-d1-and-r1_av-but-i-am-getting-blank-plot-please-help-me?s_tid=srchtitle and were given an answer there.

Lina Koronfel 2021-3-30

@Walter RobersonActually my mistake. You are right!!! Thank you!!

请先登录，再进行评论。

请先登录，再回答此问题。

Cannot read '*.tif ' file error message despite file being analyzed

4 个评论
显示 2更早的评论隐藏 2更早的评论

回答（0 个）

另请参阅

类别

标签

Community Treasure Hunt

Cannot read '*.tif ' file error message despite file being analyzed

4 个评论 显示 2更早的评论隐藏 2更早的评论

回答（0 个）

另请参阅

类别

标签

Community Treasure Hunt

4 个评论
显示 2更早的评论隐藏 2更早的评论