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Ba Ba Black Sheep!


Last seen: oltre 4 anni fa |  Attivo dal 2016

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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...

oltre 6 anni fa | 2 risposte | 0

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Domanda


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? ...

oltre 6 anni fa | 1 risposta | 0

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Domanda


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...

oltre 6 anni fa | 0 risposte | 0

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Domanda


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...

oltre 6 anni fa | 2 risposte | 0

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Domanda


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? ...

oltre 7 anni fa | 1 risposta | 0

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Domanda


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...

oltre 7 anni fa | 1 risposta | 0

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Domanda


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)', ...

oltre 7 anni fa | 2 risposte | 0

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Domanda


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...

oltre 7 anni fa | 1 risposta | 0

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Domanda


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...

oltre 7 anni fa | 1 risposta | 0

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Domanda


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....

oltre 7 anni fa | 1 risposta | 0

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Domanda


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

oltre 7 anni fa | 2 risposte | 0

2

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Domanda


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...

oltre 7 anni fa | 1 risposta | 0

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Domanda


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 ...

oltre 7 anni fa | 1 risposta | 0

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Domanda


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) ...

oltre 7 anni fa | 1 risposta | 0

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Domanda


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...

oltre 7 anni fa | 1 risposta | 0

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Domanda


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...

oltre 7 anni fa | 1 risposta | 0

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Domanda


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...

oltre 7 anni fa | 1 risposta | 0

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Domanda


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); ...

oltre 7 anni fa | 1 risposta | 1

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Domanda


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...

quasi 8 anni fa | 1 risposta | 0

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Domanda


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

quasi 8 anni fa | 1 risposta | 0

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Domanda


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

circa 8 anni fa | 1 risposta | 0

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Domanda


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

circa 8 anni fa | 1 risposta | 0

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Domanda


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

circa 8 anni fa | 1 risposta | 0

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Domanda


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...

circa 8 anni fa | 1 risposta | 0

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Domanda


Why is the colormap not working as expected?
In the following program *|cellImage|* and *|spineImage|*, both are being displayed in *|jet|*. One of them should be gray an...

circa 8 anni fa | 1 risposta | 0

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Domanda


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...

circa 8 anni fa | 1 risposta | 0

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Domanda


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...

circa 8 anni fa | 1 risposta | 0

1

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Domanda


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

circa 8 anni fa | 1 risposta | 0

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Domanda


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); ...

circa 8 anni fa | 2 risposte | 0

2

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Domanda


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...

circa 8 anni fa | 2 risposte | 0

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