Matthew Worker

2013 年からアクティブ

Statistics

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質問

how do I filter noise and background objects from images?
i have images that have these cylindrical objects that i want removed before doing analysis? How do I remove them? Thank you

2ヶ月前 | 3 件の回答 | 0

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質問

Optimization: Unable to perform assignment because value of type 'optim.problemdef.OptimizationExpression' is not convertible to 'double'.
Hello, I would like to perform a multiplication with a decision variable Yi. When doing so, I get the following error: Unabl...

3ヶ月前 | 2 件の回答 | 0

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質問

Why I'm I getting this error when I try to call the function myfourier in another m file?
myfourier.m file function [a0 an bn fs] = myfourier(f, flim, N) syms t syms N T = flim(end)-flim(1); w0 = 2*pi/T; fs = 0.0...

4ヶ月前 | 1 件の回答 | 0

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質問

Iterative code sequence error
f(i) = f(i-3)*f(i-1) - f(i-2) using f(1) = 1, f(2) = 1 and f(3) = 1. function f = iterativeSequence(n) f(1) = 1; f(2) =...

7ヶ月前 | 1 件の回答 | 0

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質問

How to add max and min data label of plot in matlab with help of annotation?
I want label max and min data label with use of annotation on gh bottom,middle and top plot to show the values of max and min. ...

8ヶ月前 | 1 件の回答 | 0

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質問

Fit and display multiple gaussians on a data set
I have a test data set (attached) that I want to display with two closely spaced gaussians. An example of how the data should lo...

12ヶ月前 | 1 件の回答 | 0

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質問

How do i read 60 .txt files into matlab?
I am trying to read experimental data in .txt format into matlab but so far, i get the following error message: Index in p...

約1年前 | 1 件の回答 | 0

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質問

How to randomly propagate 100 random targets with random headings (uniformly sampled over [0, 2π])
So I contructed a 2048x1024 pixel background image with the signal normally distribution at mean 0 and standard deviation 5 (arb...

約1年前 | 1 件の回答 | 0

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質問

put two matrices in one matrix, one will take the odd column and the other one take the even column.
A is a matrix 4x5 B is a matrix 4x5 C=[A B] 4x10 .. A and B will be combined in a matrix C where A take the odd column and B ...

1年以上前 | 1 件の回答 | 0

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質問

Sum 2 Matrices and take the average value of their summation and store them in another Matrix with the same dimension.
% in this code, I import 2 text files, C_Total_1 and C_Total_2. I want to take the average of the sum of these two variables, th...

1年以上前 | 1 件の回答 | 0

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1年以上前 | 1 件の回答 | 0

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質問

The left and right sides have a different number of elements
please help me fix the error~~~ this is my code and %% 3. Fourier descriptor %① Make the matrix above. %Find the positio...

1年以上前 | 1 件の回答 | 0

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質問

How do you write this "| "symbol in MATLAB?
How i would write that symbol in MATLAB? i left it out and even tried'/' but i keep getting warnings within the script ...

1年以上前 | 2 件の回答 | 0

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質問

Image segmentation but 'edge' does not work
i need this result, to outline it in red but i keep getting this error message. Error using activecontour>parse_inputs (lin...

1年以上前 | 2 件の回答 | 0

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質問

I want BER instead of SNR in the x-axis .. What is the relation that changes SNR to BER
This is the value of Signal to noise ratio ..... SNR = -20:6:10; %Signal to Noise Ratio I want BER instead of SNR in the x-ax...

1年以上前 | 1 件の回答 | 0

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質問

Why does my screen go black?
My region filled image and skeletonized image just appears black I fill in all the bones using the function below %% 3. Region...

1年以上前 | 1 件の回答 | 0

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質問

Why does dilate and erode images produce black images?
Did i do something wrong with nhood variable? %% 1. Dilation and Erosion %a. Apply dilation and erosion to “lung.jpg” using 3x...

1年以上前 | 2 件の回答 | 0

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質問

What is '1butter' in this Wiener Filter code?
MATLAB doesnt recognise the 1butter in this code of Wiener Filtering on an image in MATLAB

1年以上前 | 1 件の回答 | 0

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質問

How to turn code into a class?
I coded the program below for frequency domain filtering and functions well. I have to use it repeatedly to apply different fi...

1年以上前 | 1 件の回答 | 0

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質問

Frequency Domain Filtering by Convolution Theorem
So the program works but i get warning messages, i attached the imag as well %% 4. Perform frequency domain filtering by Convol...

1年以上前 | 1 件の回答 | 0

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回答済み
why is my difference image black?...
https://www.mathworks.com/matlabcentral/answers/1467816-why-is-my-difference-image-black#comment_1770511

1年以上前 | 0

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質問

why is my difference image black?...
the program works but my difference image is just black...did i do something wrong? or is there a way to make it visible? %% ...

1年以上前 | 2 件の回答 | 0

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質問

Why do I keep getting a black image when i dont use []?
What is the difference between using [] with imshow and dividing an image by a scalar before using imshow fxn? Is my code wrong...

1年以上前 | 2 件の回答 | 0

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質問

How to change a 3x3 median filter to 5x5?
My code works, but i need a 5x5 filter not 3x3. I tried to alter the code to get the 5x5 but keep getting an error %% 2. Median...

1年以上前 | 1 件の回答 | 0

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質問

Is there an alternative to 5x5 median filter in MATLAB?
I want the same result, but without using medfilt2 x=imread('sadimg.bmp'); y= medfilt2(x,[5 5])

1年以上前 | 2 件の回答 | 0

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質問

5 x 5 median filter with out inbuilt function
I am required to use just median() not medfilt2() Please help with the code %% 2. Median Filter sad1=imread('sadimg.bmp'); ...

1年以上前 | 1 件の回答 | 0

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質問

using median() instead of medfilt2()
I am not sure how to do part b and well hence c as well. can you help with how to code this my teacher requested using median...

1年以上前 | 2 件の回答 | 0

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質問

histogram specialization, imhist error
%5f)Make CDF of ‘hist_desired’ and ‘hist_xray2’ and store them into ‘cdf_desired’ and ‘cdf_input’ x_ray2=imread('x_ray2.pn...

1年以上前 | 1 件の回答 | 0

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質問

PWM measurement port conection
Hello! what block I have to connect to PWM generator (2-level 4 - pulses) to measure measurement port output? Thank you in advan...

1年以上前 | 1 件の回答 | 0

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質問

I have a problem with the figure, if you saw the picture below you will find it blurry.. How I can fix this problem

1年以上前 | 0 件の回答 | 0

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Matthew Worker

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