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1d Convolution using Matlab's conv() function
According to the documentation(https://www.mathworks.com/help/matlab/ref/conv.html), len(output) = len(input) + len(kern...

bijna 6 jaar ago | 2 answers | 0

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Can anyone explain this output of 1d conv() function?
>> u = [1 2 3]; >> v = [1 2 3]; >> w = conv(u, v) w = 1 4 10 12 9 >> Can anyone explain this output? ...

bijna 6 jaar ago | 1 answer | 0

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answer

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Why is this Gaussian function has nonconformant arguments error?
function m=gaussian(med, var, n) if ( mod(n, 2)==0 ) n=n+1; end; med=double(med); var=double(var); m...

ongeveer 6 jaar ago | 0 answers | 0

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2D convolution in in Matlab.
I = imread ("lena.jpg"); %imshow(I); K = I; C = conv2(I, K); imshow(C); I am expecting something like the follo...

ongeveer 6 jaar ago | 2 answers | 0

2

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Explanation of source code written in Matlab
What does the following function accomplish? Can anyone tell me what the following code is doing and how is it doing that? ...

ongeveer 7 jaar ago | 1 answer | 0

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How do I know when to use loops and when to use vectorization?
In *<https://www.mathworks.com/matlabcentral/answers/359415-how-can-i-convert-matrix-to-cell-array-of-strings this question>*, t...

ongeveer 7 jaar ago | 1 answer | 0

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Question

How can I convert matrix to cell array of strings?
I want to convert the following: mat = [1 2 3; 4 5 6 ; 7 8 9]; into the following array of strings, arr = {'1,2(3)', ...

ongeveer 7 jaar ago | 2 answers | 0

2

answers

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What does the following code do?
If we have, [row_num, col_num] = size(img); What does the following code do? function length_vec = compute_angular_l...

ongeveer 7 jaar ago | 1 answer | 0

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answer

Question

Is this the proper way of using ListBox?
I am learning Matlab GUI programming. I have written the following basic program to test ListBox GUI control. The following p...

ongeveer 7 jaar ago | 1 answer | 0

1

answer

Question

what is repmat() doing in the following code?
function handles = Open_Image(hObject, eventdata, handles, type, axesIm) % if the file-name and path-name are not epty....

ongeveer 7 jaar ago | 1 answer | 0

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Question

hslider=findobj('Tag', 'xText') returns 0x0 empty GraphicsPlaceholder array.
>> SliderTool >> hslider=findobj('Tag', 'xText') hslider = 0x0 empty GraphicsPlaceholder array. >> Why is t...

ongeveer 7 jaar ago | 2 answers | 0

2

answers

Question

Undefined operator '*' for input arguments of type 'matlab.ui.control.UIControl'.
The following function is giving an error, function tf = GUI_ListBoxAdd(vH, bUni, vStr, vID); % Add an entry to a GUI li...

ongeveer 7 jaar ago | 1 answer | 0

1

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Question

How can I eliminate as many loops as possible from the following code?
The following source code uses 4 loops at a time. My program is deadly slow. *How can I eliminate as many loops as possible ...

ongeveer 7 jaar ago | 1 answer | 0

1

answer

Question

How can I vectorize the following code?
*main.m* I = imread('bear.png'); J = rgb2gray(imread('marked_bear.png')); mask = I-J; for r=1:size(I,1) ...

ongeveer 7 jaar ago | 1 answer | 0

1

answer

Question

Showing multiple images in one window in Matlab
Why doesn't the following code show the images? clear all; image_name = 'woman.png'; I = gray_imread(image_nam...

ongeveer 7 jaar ago | 1 answer | 0

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answer

Question

How can I reduce the space between images?
The following source code has three problems: # it can't show only one image. # it doesn't preserve the original aspect rati...

ongeveer 7 jaar ago | 1 answer | 0

1

answer

Question

Drawing a white line on an image using (rho, theta).
I want to draw a line on the following image using |(| |rho| |,| |theta| |)| of the detected line using the Hough transformation...

meer dan 7 jaar ago | 1 answer | 0

1

answer

Question

Finding the angle of inclination from two end points of a line.
<</matlabcentral/answers/uploaded_files/80859/Scratch1.png>> point1 = [22, 114]; point2 = [693, 233]; x1 = point1(1); ...

meer dan 7 jaar ago | 1 answer | 1

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Question

Hough Transform source code explanation
I couldn't understand the following code's *|for|* loop. What is the purpose of the for loop here? Why is *|for|* iterati...

meer dan 7 jaar ago | 1 answer | 0

1

answer

Question

Why is empty string test failing?
<</matlabcentral/answers/uploaded_files/75690/Untitled.png>> . This GUI's source code is giving me error message: func...

meer dan 7 jaar ago | 1 answer | 0

1

answer

Question

Image processing code explanation.
lambda = 4;%8 theta = 0; psi = [0 pi/2]; gamma = 0.5; bw = 1; N = 12; ...

meer dan 7 jaar ago | 1 answer | 0

1

answer

Question

Edge detection error message
Why isn't the following code working? >> str=sprintf('Scratch1.jpg'); >> img_ORG = imread(str); >> fsc = edge(img_OR...

meer dan 7 jaar ago | 1 answer | 0

1

answer

Question

Image enhancement MATLAB code.
% Adjust image intensity values or colormap. f = imadjust(uint8(scratched_image), stretchlim(scratched_image), [0 1]); ...

meer dan 7 jaar ago | 1 answer | 0

1

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Question

Convolution of a color image to itself.
'Untitled.png' is a color image of 48x48 size. >> i = imread('Untitled.png'); >> v = i(:); >> c = conv2(v, v); War...

meer dan 7 jaar ago | 1 answer | 0

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meer dan 7 jaar ago | 1 answer | 0

1

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Question

Error using besselj. NU and Z must be the same size or one must be a scalar.
What is wrong with the following program? Z = (0:0.2:9)'; NU = 0:5; y = besselj(NU, Z); % Bessel function plo...

meer dan 7 jaar ago | 1 answer | 0

1

answer

Question

Optimization is generating error plotting pareto front
The following code is generating the following error, >> main Optimization terminated: average change in the spread of P...

meer dan 7 jaar ago | 1 answer | 0

1

answer

Question

Multi objective optimization of a 2D function.
I need to optimize the following function, <</matlabcentral/answers/uploaded_files/67093/Untitled.png>> . I have writte...

meer dan 7 jaar ago | 1 answer | 0

1

answer

Question

Finding Pareto Front of Shaffer's 2nd function.
I couldn't understand what was wrong with the following code of mine, *|main.m|* x = -5:0.1:5; y = schaffer2(x); ...

meer dan 7 jaar ago | 2 answers | 0

2

answers

Question

Objective function vs fitness function.
What is the difference between an Objective Function and a Fitness Function? Are Objective Functions only used in Linear Prog...

meer dan 7 jaar ago | 2 answers | 0

2

answers

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