Question

Simulation of irrational numbers

I am trying to generate two random numbers and such that their ratio is an irrational number. I understand that all numbers s...

nästan 2 år ago | 2 answers | 0

Question

Indexing error using sum

I have written a simple code that performs a moving average smoothing algorithm (it averages adjacent bins to a single bin simi...

nästan 2 år ago | 1 answer | 0

Question

Algorithm for curve smoothing

I have written a simple code that performs a 3-point moving average smoothing algorithm. It is supposed to follow the same algor...

nästan 2 år ago | 1 answer | 0

Question

Randomly dividing an integer (non-uniform distribution)

I am trying to write a code that randomly divides a number into parts (in other words, I want to generate random numbers whos...

nästan 2 år ago | 4 answers | 0

Question

Extrapolating intersection points (signal processing/curve fitting)

I have a data set which consists of a series of adjacent dips. Below I have plotted the data using the line style specifier '-o'...

ungefär 2 år ago | 2 answers | 0

Question

Adjusting the dimensions of input argument

I have written a function which takes in a row vector as the input. If is a column vector, I want the program to convert it in...

ungefär 2 år ago | 2 answers | 0

Question

Grouping using for loops (signal processing)

I am working with a signal data that consist of consecutive dips as shown below. I am only interested in the portion of the sign...

ungefär 2 år ago | 0 answers | 0

Question

Checking the range of input arguments

I have a function where two of the input parameters ( and ) must be within the range . So I have written the following code to c...

ungefär 2 år ago | 2 answers | 0

Question

Pie chart color assignment

I am trying to make a pie chart of two quantities. Using a colormap, I have assigned two different colours to each of the quanti...

nästan 3 år ago | 1 answer | 0

Question

Restricting getrect boundaries (image processing)

When using the _getrect_ function, is there any way to restrict the selected rectangle so that it cannot be dragged outside the ...

mer än 3 år ago | 1 answer | 0

Question

Circular region in an image

I am trying to replace a circular region in one image with the corresponding region in another image. Here is my code so far: ...

mer än 3 år ago | 3 answers | 0

Question

Using getrect for Image Processing

I am trying to use the _getrect_ function to replace a selected portion of one image with the corresponding portion in another i...

mer än 3 år ago | 1 answer | 0

Question

Assigning random values to image pixels

I am trying to assign random values to the elements of a rectangular region within an image matrix, so that the result looks som...

ungefär 4 år ago | 1 answer | 0

Question

Alphamap using Binary Mask

Is it possible to make an alphamap for a figure based on its binary mask? Here is a sample image and its binary: <</matlab...

ungefär 4 år ago | 3 answers | 0

Question

Volumetric slice plot of tomographic data

I am trying to use the <https://au.mathworks.com/help/matlab/ref/slice.html slice> function to stack the following 79 slices and...

ungefär 4 år ago | 2 answers | 0

Question

Bidirectional concatenation using cat (image zero-padding)

I am trying to zero-pad the borders of an image by a certain amount (xPad, yPad) using the |cat| function. It takes four lines o...

ungefär 4 år ago | 1 answer | 0

Question

Image rotation and NaN elements

The following code rotates an image by a given angle θ. I do not understand the function and significance of the last line: ...

ungefär 4 år ago | 1 answer | 0

Question

2-D Meshgrid Rotation Matrix Multiplication

I am trying to rotate the coordinates of a 182x182 mesh grid by means of multiplication with the rotation matrix: <</matlabce...

ungefär 4 år ago | 2 answers | 0

Question

Using double instead of im2double for images?

I want to convert an input image into floating point, so that interpolation using _interp2_ will be possible. I want to achieve ...

ungefär 4 år ago | 2 answers | 1