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how crop an image automatically without any coordinate?
You can use padarray to add enough rows so that your box can be 512x512. Or you can crop what you have within the existing imag...

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x^2 + y^2 =9
viscircles([0,0], 3); % Plot circle centered at (0,0) and with radius 3 grid on; % Show gridlines axis square % Make sure it's...

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How to do real Time EEG seizure Detection/analysis?
I suggest you first consult with your neurologist, or whatever medical professional hired you to do this, and have them identify...

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How to analyze every single pixels intensity in a video clip?
See my attached demo where I find the mean R, G, and B mean of every frame in a video and plot them. Adapt the region to what y...

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Calculation of centroide of an object in image
See my Image Segmentation Tutorial in my File Exchange: Image Analyst's File Exchange It's a generic, general purpose demo of ...

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I want to count the number of 0s in a binary sequence which occurs for n number of times, where n=1:25.
If you have the Image Processing Toolbox you can use a few functions in there: % Define sample data. A = [0 0 0 1 0 0 1 0 1 0 ...

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Can we automatically find the threshold from CT images having 3 different materials?
Did you try multithresh? help multithresh

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determining the data of a repeated period from a single file.
Try conv y = 1:8 out = conv(y, [1,1]/2, 'full'); out = out(2:end-1) If you have any more questions, then attach your data an...

12일 전 | 0

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detect the blue color
Use the Color Thresholder app to adjust thresholds. It's on the Apps tab of the tool ribbon. Tell it to use HSV color space, t...

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How to detect wavelength patterns using fft2?
Your hypothesis is wrong. The "wavelengths" indicated by your arrows are not high frequencies - they are low frequencies. Anyw...

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How to start figure window in matlab
Take the App Designer training: MATLAB App Designer If you have any more questions, then attach your data and code to read it ...

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How to set the default documentation location to "Locally Installed" at the time of installation?
Home tab Preferences Help Click Installed locally radio button

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Estimation of particle size in the image
Try this: % Demo by Image Analyst % Initialization steps: clc; % Clear the command window. close all; % Close all figure...

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Squeeze some part of a plot
There are several submissions in the File Exchange for broken y axes or axes with "gaps" in them. Search for "break y axis" ht...

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how can i blur the background?
You can try the foreground detector in the Computer Vision Toolbox. https://www.mathworks.com/help/vision/ref/vision.foreground...

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How to speed up convolution with a million data points
Use the built-in convolutions functions: conv and conv2. They are highly optimized for speed.

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particle size and shape analysis
See my Image Segmentation Tutorial in my File Exchange: Image Analyst's File Exchange It's a generic, general purpose demo of ...

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Estimation of particle size in the image
Yes, it's pretty easy. Would be better if you could also post an image with just the background in there. Can we assume that t...

17일 전 | 0

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where to enter the input in fault analysis of washing machine
Take a training course on MATLAB's AppDesigner MATLAB App Designer It should show you how you can enter your input values into...

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How to spline 163 data points into 100 data points?
See attached demo. You can easily use new values for the descriptively-named variables in the demo to do what you want.

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big problem with matlab and simulink
Try the FAQ: https://matlab.fandom.com/wiki/FAQ#After_installation,_MATLAB_crashes_or_gives_an_error_message_when_I_try_to_run_...

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I am new to matlab and I'm trying to filter the noise out of the audio. I tried some filters but can't event get close to lessening the noise.
Did you try the Data Cleaner app on the Apps tab of the tool ribbon? Can you upload a screenshot of your noisy original data, a...

21일 전 | 0

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The image calculation found that they are all black or all white.
img1 is an array so you need to use dot division img = (-0.18 ./ (-0.28 ./ (45.39 ./ img1 - 1)) + 1) * 5.3; And double check y...

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Do calculations in csv data one csv file at the time
See the FAQ for code samples to process a sequence of files: Process a sequence of files

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Errors in turbulent image analysis.
The reason for the error is that your image does not have as many as 840 rows and 1320 columns. Why are you even cropping the i...

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How to smooth the line curves in the plot?
See attached demo. Adapt as needed. % Demo to show spline interpolation. % Clean up / initialize clc; close all; clear a...

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calculating the velocity and distance of a rocket
Why do you need differential equations? velocity = acceleration * time and distance = (1/2) a*t^2 + v*t + d0. You only are giv...

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How to extract the Physical value from the Raw Signal of the CAN using MATLAB coding
I have no idea what BMS is, nor CAN. Please explain and attach your data file. Zip it up if the extension is not allowed for u...

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how to convert numerical dataset to image ?
If you're building your own network then you can just design it to use your existing matrix size of 2816 x 2500. No need to res...

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Problem 56313. Find Air Temperature from Cricket Stridulation Rate
Not sure why you have a while loop. It will enter the while loop because F=0 is less than 50 but then you add 110 to it so the ...

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