Matthew Worker

Active since 2013

Statistics

Content Feed

Question

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

5 maanden ago | 3 answers | 0

3

answers

Question

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...

5 maanden ago | 2 answers | 0

2

answers

Question

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...

6 maanden ago | 1 answer | 0

1

answer

Question

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) =...

10 maanden ago | 1 answer | 0

1

answer

Question

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. ...

10 maanden ago | 1 answer | 0

1

answer

Question

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...

ongeveer een jaar ago | 1 answer | 0

1

answer

Question

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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question

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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question

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 ...

meer dan een jaar ago | 1 answer | 0

1

answer

Question

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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question

meer dan een jaar ago | 1 answer | 0

1

answer

Question

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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question

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 ...

meer dan een jaar ago | 2 answers | 0

2

answers

Question

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...

meer dan een jaar ago | 2 answers | 0

2

answers

Question

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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question

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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question

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...

meer dan een jaar ago | 2 answers | 0

2

answers

Question

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

meer dan een jaar ago | 1 answer | 0

1

answer

Question

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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question

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...

meer dan een jaar ago | 1 answer | 0

1

answer

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

meer dan een jaar ago | 0

| accepted

Question

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? %% ...

meer dan een jaar ago | 2 answers | 0

2

answers

Question

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...

meer dan een jaar ago | 2 answers | 0

2

answers

Question

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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question

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])

meer dan een jaar ago | 2 answers | 0

2

answers

Question

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'); ...

meer dan een jaar ago | 1 answer | 0

1

answer

Question

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...

meer dan een jaar ago | 2 answers | 0

2

answers

Question

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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question

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...

meer dan een jaar ago | 1 answer | 0

1

answer

Question

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

meer dan een jaar ago | 0 answers | 0

0

answers

Matthew Worker

Statistics

First Review

File Exchange

Content Feed

3

2

1

1

1

1

1

1

1

1

1

1

2

2

1

1

2

1

1

1

2

2

1

2

1

2

1

1

0