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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...

約6年前 | 2 件の回答 | 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? ...

約6年前 | 1 件の回答 | 0

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質問

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...

約6年前 | 0 件の回答 | 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...

6年以上前 | 2 件の回答 | 0

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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? ...

約7年前 | 1 件の回答 | 0

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質問

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...

約7年前 | 1 件の回答 | 0

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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)', ...

約7年前 | 2 件の回答 | 0

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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...

約7年前 | 1 件の回答 | 0

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質問

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...

約7年前 | 1 件の回答 | 0

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質問

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....

約7年前 | 1 件の回答 | 0

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質問

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

約7年前 | 2 件の回答 | 0

2

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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...

約7年前 | 1 件の回答 | 0

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質問

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 ...

7年以上前 | 1 件の回答 | 0

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質問

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) ...

7年以上前 | 1 件の回答 | 0

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質問

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...

7年以上前 | 1 件の回答 | 0

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質問

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...

7年以上前 | 1 件の回答 | 0

1

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質問

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...

7年以上前 | 1 件の回答 | 0

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質問

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); ...

7年以上前 | 1 件の回答 | 1

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質問

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...

7年以上前 | 1 件の回答 | 0

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質問

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

7年以上前 | 1 件の回答 | 0

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質問

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

8年弱前 | 1 件の回答 | 0

1

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質問

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

8年弱前 | 1 件の回答 | 0

1

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質問

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

8年弱前 | 1 件の回答 | 0

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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...

8年弱前 | 1 件の回答 | 0

1

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8年弱前 | 1 件の回答 | 0

1

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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...

8年弱前 | 1 件の回答 | 0

1

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質問

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...

8年弱前 | 1 件の回答 | 0

1

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質問

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

8年弱前 | 1 件の回答 | 0

1

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質問

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); ...

8年弱前 | 2 件の回答 | 0

2

回答

質問

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...

8年弱前 | 2 件の回答 | 0

2

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