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How Do I Implement Histogram Normalization for RGB Image?
Yes it will look weird. That's because you stretched each color channel independently and that destroys the color relationship....

plus de 2 ans il y a | 0

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Is it possible to make a video play through of points showing yaw, pitch, and roll values?
See my attached movie making demos.

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how can I make the dilation and erosion process on the image in the cleanest way?
I don't think you need to do any of that for deep learning. You don't need to get rid of the black background in the corners....

plus de 2 ans il y a | 0

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how can i change image brightness ?
Try imadjust or adapthisteq

plus de 2 ans il y a | 0

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When running an exe created from a matlab app, where are the variables stored?
Steve's answer is right. However if you have your program store variables to disk files in the "current" folder, you might face...

plus de 2 ans il y a | 1

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Drawing on UI Axes in MATLAB app designer
There is a family of "draw" functions, like drawpolygon, drawfreehand, drawline, etc. Use one of them. See attached demos if y...

plus de 2 ans il y a | 1

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duration of rain. help
You might look into splitapply, grpstats, groupsummary, and findgroups. They are very useful functions to know about! 🙂

plus de 2 ans il y a | 0

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Detect monotonic decrease and record the corresponding rate
Does this help? D1= {'3/25/2024 15:01:10' 15 '3/25/2024 15:01:26' 25 '3/25/2024 15:01:42' 25 '3/25/2024 15...

plus de 2 ans il y a | 0

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How to make a logical mask using a shape file?
You have to define lat and lon as vectors before you use them in meshgrid to get the full matrices Lat and Lon as outputs.

plus de 2 ans il y a | 0

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Is there a way to calculate differnce between two pictures and show it as %?
See https://en.wikipedia.org/wiki/Image_quality In MATLAB try brisque, niqe, and piqe

plus de 2 ans il y a | 0

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Finding multiple flat sections
Try movstd

plus de 2 ans il y a | 2

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Boundary Extraction Algorithm for Low-Resolution Ultrasound Images
I see no justification from the image alone that the bright region(s) would form a donut shape. You must be indicating those us...

plus de 2 ans il y a | 0

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Matlab asks me to sign in when I'm offline
Are you using a shared license -- part of a license pool? Like where your organization has a group of licenses (less than the n...

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Discussion


Puzzle challenge - distance to horizon
In one line of MATLAB code, compute how far you can see at the seashore. In otherwords, how far away is the horizon from your e...

plus de 2 ans il y a | 5

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How to generate multiple tiff files into my file path?
You cannot use colons in the file name (for Windows) unless it's immediately after a drive letter. Try this: thresholdarray = ...

plus de 2 ans il y a | 0

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Is it possible to use format long in one line of code and then use format short in another line of code on the same script?
Just call format whenever you want to set the format and it will be that format for the rest of the script (or until you call fo...

plus de 2 ans il y a | 0

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classification network with images, around 400 classes, each class minimum 5 images, around 4000 images
Yes you can convert vectors into images and then use deep learning to classify the vectors. However I'm not seeing the part whe...

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Extracting a double array from within a struct
Structures have "fields" not "cells". "One of those fields is called contains..." <== is called WHAT??? You left out the name ...

plus de 2 ans il y a | 0

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How to isolate inner branch structure (similar to bulk background color) from ring of dark gray?
I could maybe do a better job than that, but unfortunately you forgot to attach the actual image, image.tif. If you still need ...

plus de 2 ans il y a | 0

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imread file does not exist - Unable to read file with multiple images
To process a sequence of files in a folder, see code snippets in the FAQ: https://matlab.fandom.com/wiki/FAQ#How_can_I_process_...

plus de 2 ans il y a | 0

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Find turning point of noisy signal
Try findchangepts. If it doesn't work well then first try to denoise your signal by running it through movmedian. Another opti...

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How do I write a code for given formula?
I feel that kmeans is not a good method in your situation. kmeans is good when you know that you have the required number of cl...

plus de 2 ans il y a | 0

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Trying to adjust weighting on PART of a sigmoid fit
Then simply don't include that data in your training data set. Try firstIndex = find(x > 500); partialYData = y(firstIndex : ...

plus de 2 ans il y a | 0

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I am not able to save my file on the trial version
"UNTITLED2. " is an unusal name for a folder. Not that a dot and a space are not allowed, but maybe just save it to a regular f...

plus de 2 ans il y a | 0

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Matlab doesn't open
Evidently you have not tried the FAQ: https://matlab.fandom.com/wiki/FAQ#After_installation,_MATLAB_crashes_or_gives_an_error_m...

plus de 2 ans il y a | 0

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How to calculate center of pressure given a 2d array containing pressure data
If you have the Image Processing Toolbox (I think most people do) then you can do it in one line of code by asking regionprops t...

plus de 2 ans il y a | 1

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What would be the equation of the following surface?
One assumption might be that it's the sum of two Gaussians, like z = a1 * exp(-( (x-xctr1).^2 + (y-yctr1).^2) / sigma1) + a2 *...

plus de 2 ans il y a | 0

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Problem with loop for
This is round-off error, a form of quantization error. See https://en.wikipedia.org/wiki/Round-off_error and https://matlab....

plus de 2 ans il y a | 0

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Standalone Application - fwrite invalid file identifier if launched by another user
Maybe try fclose('all') in the code where your app shuts down.

plus de 2 ans il y a | 1

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Crack analysis and width measurement in Concrete
I'm pretty sure I've done this several times before. Look up tags concrete, crack, etc. and see what answers of mine pop up. I...

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