i want code to convert image to text
You can use deep learning networks from the neural networks toolbox: nnet = alexnet; % Load pretrain...

6年以上 前 | 0

interpolating Sample data to finer increment
Vq = interp2(X,Y',Weights, -17.5:0.5:17.5, (-15:0.25:15)');

6年以上 前 | 0

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How to set the y-axis values to be only integers?
plot(x) a = axis; axis([a(1) a(2) 0 4]); set(gca, 'YTick', 0:4)

6年以上 前 | 2

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what is the difference between double and im2 double?
im2double converts to double and rescales the image to [0, 1].

6年以上 前 | 1

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Finding out values for elements of an array from corresponding array elements?
You can represent your weights as a matrix using NaN for the diagonal elements that do not exist: Weights = [NaN, 0.79,0.31...

6年以上 前 | 0

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Question about plotting/vectors
When x is a vector you have to use element-wise multiplication and division sigmax=(F/(pi*R))-((4*F*R.*x.^2)./(pi.*K)).*C

6年以上 前 | 1

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Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

6年以上 前

Resacaling an array to align and plot beside another
x = 1:600; A = rand(1, 600); y = 1:2:600; B = rand(1, 300); plot(x, A, y, B)

6年以上 前 | 0

how to use LUT form configuring matrix
Use your matrix as index to LUT: Mnew = LUT(M);

need to gray-rgb transforming
The idea is to convert a color map to an RGB image stripe of size 1 x N, where N is the number of entries in the colormap, and t...

How do I check that input is numerical?
Using isnumeric

How can I extract all matrix element neighbors ?
You have to ensure that the indices are always valid, i.e., between 1 and the maximum number of rows / columns. For example, wha...

Citing MATLAB Optimization Toolbox (BibTex reference)
I would use something like this @misc(MatlabOTB, key = {MATLAB Optimization Toolbox}, title = {MATLAB Optimizatio...

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How can I repeatedly put a function result into itself, and get a matrix of the results?
N = 500; Y = zeros(1, N); % preallocate for speed Y(1) = myfun(1); for i = 2:N Y(i) = myfun(Y(i-1); end with my...

How to add a string to a filename while saving plots
name = 'test'; Either newname = [name, '_angle']; or newname = strcat(name, '_angle'); or, as Stephen...

Matching x-axis when two plots's axes are multiple of each other
With the x value of the bar command you can plot the two graphs on top of each other, as you initially intended: x = (0:20:...

How to get the index of maximum value in each row of a matrix?
[~, q] = max(A, [], 2) ; p = (1:size(A, 1))';

How can I create this simple matrix?
Using unique

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Search specific layer of multidimensional matrix for range of values?
idx2 = ismember(N(:,:,2), dx); idx3 = ismember(N(:,:,3), dx);

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How do I change the orientation of a marker randomly?
You have to draw two crossing lines of a random angle. You cannot change the orientation of Matlab's markers. The following f...

Why does "find" command fail to find a number in this vector?
You can use find(round(100*v) == 24) The reason that the straight-forward approach does not work is the representation ...

How can I change the radius of a circle pointeur
You have to define your own pointer as a 16 x 16 matrix and then change the line in myginput that changes the pointer to use you...

How to group arrays in matrix
If the second row is the number of occurrences then you can use [a, ~, c] = unique(A); B = [a, accumarray(c, 1)];

"Operands to the || and && operators must be convertible to logical scalar values" occurring with integer comparisons
Check before the while whos E_rec thr n_sv n_sv_max I am quite sure that not all variables have Size 1x1 and Class doub...

how to save the output of For loop in a matrix form!
for i = 1:size(sample, 2) s = sample(:, i); % extract only the i'th column! % your code: anom = abs(s - mean...

how can I make a plot between theretival and experimental value with the standard deviation?
h(1)= plot(1, 0.351, 'ko') hold on h(2) = errorbar(1, 0.641, -0.4, 0.4, 'Marker', 'x') axis([0.9 1.1 0 1.2]) set(g...

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How to convert several 2d images into a single 3d image in matlab code?
To concatenate four 2D images of the same size along the 3rd dimension, use: I = cat(3, I1, I2, I2, I4);

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Plot normal distribution with unknown mean that is normally distributed with known parameters
2 + 8*randn(1, 100) + 4*randn(100,1); or in more detail n = 1; m = 100; % number of samples m1 = 2; s1 = 8; s2 = ...

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I'm having a divide problem in matrices
P = diag(1./s);

Add refline (hline) to the legend
Use handles: hold on h(1) = plot(x1, y1,'--r') h(2) = plot(x2, y2,'r','LineWidth',1.5) h(3) = refline([0 threshlod...