Image Analyst

Last seen: Today | Active since 2010

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Senior Scientist (male/man) and Inventor in one of the world's 10 largest industrial corporations doing image analysis full time. Ph.D. in Optical Sciences specializing in imaging, image processing, and image analysis. 44+ years of military, academic, and (mostly) industrial experience with image analysis programming and algorithm development. Experience designing custom light booths and other imaging systems. Experience with color and monochrome imaging, video analysis, thermal, ultraviolet, hyperspectral, CT, MRI, radiography, profilometry, microscopy, NIR and Raman spectroscopy, etc. on a huge variety of subjects. Member of the Mathworks Community Advisory Board. Be sure to click "View All" in my File Exchange to see ALL of my demos and tutorials: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862 Professional Interests: Image analysis and processing

Programming Languages:
MATLAB, Visual Basic
Spoken Languages:
English
Pronouns:
He/him
Professional Interests:
Image Data Workflows, Industrial Statistics, Image Processing and Computer Vision

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Answered
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...

ongeveer 3 uur ago | 0

Answered
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...

ongeveer 4 uur ago | 0

Answered
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

ongeveer 18 uur ago | 0

Answered
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...

2 dagen ago | 1

Answered
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...

3 dagen ago | 0

Answered
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...

4 dagen ago | 0

Answered
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...

4 dagen ago | 0

Answered
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...

4 dagen ago | 1

Answered
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 ...

4 dagen ago | 0

Answered
How to segment dataset and randomly sample and append datapoints?
Try this: % Create initial full table. col1 = [3.0; 5.6; 10.2; 12.0; 14.4; 15.6]; col2 = {"08-Feb-2019 12:34:52"; "11-Feb-201...

5 dagen ago | 0

Answered
Improve my MATLAB skills
See Best way(s) to master MATLAB? - MATLAB Answers - MATLAB Central

5 dagen ago | 0

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Answered
Modifying the search path is not supported by Matlab Compiler?
Try taking that line of code out of your program. To add files that the compilation process may not see and automatically inclu...

5 dagen ago | 0

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Answered
Saving 3D image after segmentation
Did you try imwrite or save? help imwrite

8 dagen ago | 0

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Answered
can image tiff convert to grayscale
image is a built-in function. Do not use it as the name of your variable. Zip up your image and attach the zip file with the p...

8 dagen ago | 0

Answered
How would I properly go about creating this function?
What is "width_values"? You never set it equal to anything so of course it complains.

8 dagen ago | 0

Answered
Not able to form the graph needed for the given equation. Error shown is in relation to the Matrix in the denominator, which I understand is wrong but can't get it right.
Try using 1./x and .*sqrt

8 dagen ago | 1

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Answered
Set MarkerFaceColor to be filled by default
Try this: x = 1:5; y = rand(1,5); l = plot(x,y,'o', 'MarkerSize', 30); l.MarkerFaceColor = [.6, .2, .9]; % Change color from...

9 dagen ago | 0

Answered
How can I measure the (μm) length, diameter and radius of halloysite mineral?
Since most particles do not lie completely in the image or have one end obscured if they do, you can't get particle length. I s...

10 dagen ago | 0

Answered
rotating image using app designer
Assuming you have an image variable, not a widget on the UI, called app.img, it should work. But I don't know what app.img is. ...

12 dagen ago | 0

Answered
Why is my error not exactly 0
error is a built-in function. You must not use it as a name for your variable. Does the FAQ answer your question? https://mat...

15 dagen ago | 0

Answered
How can I identify the region where the ferret is through color in the image?
Use the Color Thresholder app on the Apps tab of the tool ribbon. Also see color segmentation apps in my Image Segmentation Tut...

17 dagen ago | 0

Answered
How can find connected region in RGB images?
See my Image Segmentation Tutorial in my File Exchange: Image Analyst's File Exchange It's a generic, general purpose demo of ...

17 dagen ago | 0

Answered
I want to change the backgroung color of image into transparent and then work with the pixels of it
Start here: Watershed transform question from tech support » Watershed transform question from tech support Marker-Controlled ...

17 dagen ago | 0

Answered
use rgb to caculate three brown ratio
You could try using kmeans with k=5 for the three browns, black, and white (for the letters). Or you could also use K nearest N...

21 dagen ago | 0

Answered
Image segmentation to segment the large blob into singular objects MATLAB
What about my answer in your duplicate question: https://www.mathworks.com/matlabcentral/answers/2100681-image-segmentation-of-...

24 dagen ago | 0

Answered
Why are all of my axes flipped in this figure?
Try axis xy or axis ij after you're all done plotting to see if one of those makes it the way you want it.

24 dagen ago | 0

Answered
showing error " Array indices must be positive or logical values"
See the FAQ for a thorough discussion of the error: Subscript indices must either be real positive integers or logicals

24 dagen ago | 0

Answered
potential issue with fscanf new line character, the newline character is /n coming from a c background i was trying \n.
Maybe you might want to try readlines instead.

25 dagen ago | 0

Answered
Reconstruction of a blurred and noisy image
When I was in grad school, decades ago, my professor and I published a paper on "median window enhancement". The theory is that...

26 dagen ago | 0

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Answered
Finding both row and column indexes of nearest value
To find the nearest row and column, subtract the reference value from your matrix and then use find. To be super explicit, here...

26 dagen ago | 0

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