# Ayush

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**Feeds**

how to calculate the area of the black color and the white color

Hi, To calculate the area of black circles, ensure that the image is in binary format, i.e., the circles are black (0) and the ...

9 days ago | 0

about the color of pixel

Hi, To count the number of yellow, red, and black pixels in an image using MATLAB, you can convert the image to the HSV colour ...

10 days ago | 0

Why RGB image should convert into grayscale in image processing?

Hi, Converting images to grayscale is a common practice in image processing, but it's not mandatory. It simplifies the data by ...

10 days ago | 0

To plot lines between points

Hi, To plot two lines between the points ((a, b)), ((c, d)), and ((e, f)) in MATLAB, you can use the “plot” function. Refer to ...

10 days ago | 0

Represent a variable with probability in Matlab

Hi, To represent the noise “n”, given that it occurs with a probability of 4%, you can use a combination of random number gener...

10 days ago | 0

plot and figure windows

Hi, To indicate specific points in the figure window which display an image, you can first use “hold on” which will allow you t...

11 days ago | 0

how to use histogram values in svm classifier

Hi, Once you have computed the histogram features, you can make use of the “fitcsvm” function to pass the histogram features i...

11 days ago | 0

How to test & train image using random forest classifier

Hi, Testing and training images using a Random Forest classifier involves preparing your dataset, extracting features from ima...

12 days ago | 0

Generating Random text file of size x bits

Hi, To generate a random text file of a specified size in bits, you first need to convert the size from bits to bytes, as file...

12 days ago | 0

how to sample some random patches of an image?

Hi, You can follow bellow steps to sample random patches from the image: Load image in MATLAB. Specify the size of the patch...

25 days ago | 0

How to fill in missing data?

Hi, One way to replace missing values currently represented as 0 is to use interpolation. Start by identifying the indices of t...

25 days ago | 0

how can i generate a sine wave in simulink if angle is changing?

Hi, To create a sinusoidal signal in Simulink, you can utilize the "Sine Wave" block. Since the angle varies in your scenario,...

25 days ago | 0

Number of detected points

Hi, To determine the number of detected feature points using the FAST algorithm, you can utilize the "detectFASTFeatures" funct...

1 month ago | 0

imagesc color map for gridded value

Hi, To plot the Z variable as a colour scale using "imagesc" in MATLAB, you need to ensure that Z is in a matrix form that corr...

4 months ago | 0

matlab code to find mean, median and standard deviation of a series of data in discrete time wavelet

Hi, To find the mean, median, and standard deviation of a series of data, you can make use of inbuilt functions "mean", "median...

4 months ago | 0

DateTime YYYYMMDD HHMMSS ConvertTo

Hi, To convert the data into the required format, you can make use of the "Format" property of the "datetime" object and set it...

4 months ago | 0

Plotting the Bar chart in Matlab

Hi, The data in your matrix is being plotted in columns rather than rows. To achieve the desired grouping, you should transpose...

4 months ago | 0

How to perform stack operation of 4 shares in color images

Hi, You can stack your four shares together. Take care that all four shares are of the same size. You can resize them if they a...

4 months ago | 0

change between two values with time dependent

Hi, To plot the sawtooth-like signal as per the parameters you have defined, you need to create a time vector to simulate the w...

4 months ago | 0

Find height value from the same horizontal position data

Hi, To extract the z values from one array (A) based on the matching x-y values provided in another array (B), you can iterate ...

4 months ago | 0

How to compute Z-transform with Matlab?

Hi, To compute the Z-transform of the given equation, you can follow the below steps: Define the symbolic variables. Define ...

4 months ago | 0

how do you change the color of a region of an image?

Hi, To work on a certain region of an image, you need to define the coordinates and size of the region you want to modify. Assu...

4 months ago | 0

How to use Matlabs in Forex?

Hi, You can make use of the Financial Toolbox. With this, you can work on technical indicators to find moving averages, momentu...

4 months ago | 0

Impulse response from poles and zeros

Hi, To find the impulse response "h(n)" from the given pole-zero locations, create the system function "H(z)" and then compute ...

4 months ago | 0

Could anyone help me how to find the correlation between the time series data

Hi, You can make use of the "corr" function to get a linear correlation coefficient between the data. You can extract the time ...

4 months ago | 0

Help me to draw a pie chart with separate pieces

Hi, You can pass an array to the "pie" function, where each element corresponds to the pie chart pieces. A value of 1 would mea...

4 months ago | 0

how can I detect and fill gapes in data

Hi, You can fill in the missing data by using the "fillmissing" function with the 'linear' method to interpolate missing values...

4 months ago | 0

How to set specific colors in margin of errorbars line?

Hi, You can achieve a red line with a black margin effect by plotting the error bars and the main line separately and then cus...

4 months ago | 0

Excluding data not of a classes from a KNN classifier

Hi, To detect data that is too dissimilar from any of the trained classes in your KNN classifier, you can compute the distances...

5 months ago | 0

How to merge local maxima based on distance apart

Hi, To merge local maxima that are less than a certain distance apart in an image, you can use the "pdist" function to compute ...

5 months ago | 0