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Find brightest frame in video file
See my attached demo that runs through a video getting the mean R, G, and B, and gray scale brightness. Once you've run though ...

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PROBLEMS WITH SAVING PATHFOLDERS
I noticed that you included the drive letter in one path but not the others. Try putting the drive letter in all paths. What o...

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create animation from several figures
See my attached movie demos, especially movie_made_from_plot and movie_made_from_surf.m.

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Object depth tracking with magnetometer
Since you don't know how the Z values change, you'll have to model that. So I'd map out a 3 by 3 (or more) grid that covers the...

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PROBLEMS WITH SAVING PATHFOLDERS
I'd say that you don't have the folderpath on your computer folderPath = '\path\folder\test'; or else the images are not in th...

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How to completely extract the green pixels from this image?
Try the Color Thresholder on the Apps tab of the tool ribbon. Use HSV color space, then click the Export function button on the...

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Do I have to upgrade to Matlab 2020?
I'd say sure, but upgrade to R2023b, the latest, instead of R2020a. Can't hurt. Otherwise call delete(filename) before calling...

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How can I deform an image to fit a shape, but keep the same pixel values?
You cannot do it without "new" pixel values being interpolated especially if you enlarge the region. For example if the source ...

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Handwritten number recognition app
Yes, I'm pretty sure there is a simple deep learning example using transfer learning and the NIST numerical image data set. Sea...

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I want to use Interpole with Zero Padding
Why are you doing anything with fft? Just use interp1 xInterp = linspace(min(n), max(n), 5 * length(n)); x_interpolated =in...

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My output text file continues to have a delimiter. How do I change this in my code?
You can go through each row of the table using fprintf to write whatever you want into a text file. Just don't write delimiters...

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Video and image analysis of microfluidics channel with a growing bubble. Calculate the size of the bubble.
After getting the binary image "L" you should have removed the background and then extracted the largest blob (assuming the bubb...

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Identify specific rectangular shape in image and measure distance
Try this. Adapt as needed. % Demo by Image Analyst clc; % Clear the command window. close all; % Close all figures (exce...

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How to find the minimum area bounding box of a region returned from regionprops
Yes it is. Did you actually try to use the bwferet function? If not, you should.

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I am a 3rd year ECE UG student i know the basics of this matlab language but want to from the community about how to get advanced.....
See this link: Best way(s) to master MATLAB? - MATLAB Answers - MATLAB Central

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How can I find the red areas?
Try thresholding. See my Image Segmentation Tutorial in my File Exchange: Image Analyst's File Exchange It's a generic, gener...

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implement some enhancement techniques
This looks like a homework problem. If you have any questions ask your instructor or read the link below to get started: How d...

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license error -10
Then do exactly what it says to do in the FAQ. https://matlab.fandom.com/wiki/FAQ#After_installation,_MATLAB_crashes_or_gives_a...

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How can I make this code a function to extract data and use the data in another code?
Why not just save whatever data you want in a .mat file that the other code can load?

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Finding the neighbouring regions
Not too hard. Simply call bwlabel to give each region an ID. Then call bwmorph with the thicken option to dilate the regions t...

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How can I increase classification accuracy after feature extraction
To get better classification accuracy you can either pick better features to measure, use more training samples, or pick a bette...

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Is there a method to combine some functions into a single .m file?
Simply make sure the folder where tools lives is on the search path. Then testadd will find it no problem. No need to pass it ...

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How to extract the region coordinates in this example?
Use load to load the (x,y) coordinates from the MAT file. Then you can use poly2mask to get a mask then use the mask to get the...

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How to get the inside shape within my segmented image?
If "mask" is your binary image, you can get the interior holes by inverting the image. Then call imclearborder to get rid of th...

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What would be the best detector to classify objects with simple geometry and color such as a blue cube ?
That's a pretty simple problem. You don't have to use deep learning if you don't want to. Traditional methods would work fine....

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I am trying to measure the length of this laser in the image. For now I am using intensity profile but that gives me R G and B. Are there any other way you guys can recommend?
Try the Color Thresholder app. % Demo by Image Analyst clc; % Clear the command window. close all; % Close all figures (e...

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Why do I get license manager Error 114 after activation?
See the links on the right hand side of this page, or else see the FAQ: https://matlab.fandom.com/wiki/FAQ#After_installation,_...

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Correct the code for me please
I don't know what you're trying to do but this line: d(i,j) = (d(i,j-1) - d(i-1,j-1))/(x(i) - x(i-j)); when i and j are both 2...

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Doesn't show the result as an integer even though the result of the operation is an integer
See the FAQ: https://matlab.fandom.com/wiki/FAQ#Why_is_0.3_-_0.2_-_0.1_(or_similar)_not_equal_to_zero?

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how to measure the droplet spreading diameter from the series of images and also want to output in .xlxs file.
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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