Image Analyst
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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
MATLAB, Visual Basic
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English
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He/him
Professional Interests:
Industrial Statistics, Image Processing and Computer Vision
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Getting an error saying "Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters"
You have too many parentheses. This works: L = 21; rec_signal = rand(L, 4); %% Root Mean Square envelope (moving average) ...
3 hours ago | 0
How to eliminate uneven illumination from an imgae with respect to another image?
No, that won't do it. And I don't know what you mean by with respect to another image. The best way to flatten out an image to...
14 hours ago | 0
Can uigetfile function be used to return file name & location for a file that is already open?
What other process opened the file you are trying to select with uigetfile()? What kind of functions are you planning on using ...
1 day ago | 0
how to create column vector by inputs with matlab app designer to have final vector throught inputs
You can use a table. Attached is a working example.
4 days ago | 0
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Just downloaded MATLAB 2025a: Workspace is blank and greyed out
Works for me. I think you should call tech support and say it's an installation issue (so you'll get free tech support).
4 days ago | 0
How to merge red and blue images on white background with transparency
Does it look acceptable if you just average them? weightR = 0.5; % Change as you want it. weightB = 0.5; dblImage = weightR *...
6 days ago | 1
edge detection operator error
It seems to work fine: a = imread('peppers.png'); figure; imshow(a); b = rgb2gray(a); figure; imshow(b); c = edge(b,'sobe...
7 days ago | 0
Apps created with app designer are not displaying components positioned correctly
Yes, what you say is very true. I've spent hours with tech support to find some solution to the App Designer layout nightmare. ...
7 days ago | 1
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How i crop the image using image processing?
I made an attempt to recover your original image using rgb2ind. Try this. Adjust threshold if you want. Raise it if you want ...
8 days ago | 0
In App Designer, how can I ensure that the values displayed on the UI do not appear in scientific notation?
Where or how are you displaying them? If you're using fprintf or sprintf, use %.3f or %g in your format specifier. If you're j...
9 days ago | 0
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MNPBEM Error - Issue with dot product in tripolygon file
That does not seem to be a Mathowrks toolbox. I suggest you supply your faces and vertices in a .mat file to the publishers of ...
10 days ago | 0
How do I redraw a picture given to me using its data points that I've found using the curve fitting app?
There may be other errors, but for one, you can't use 0 as the index into an array: D(0,0,0)=1; % Will throw error. Indexing s...
12 days ago | 0
Cannot install Matlab 2006b on my Windows 11 laptop
See the FAQ: https://matlab.fandom.com/wiki/FAQ#During_installation,_the_installer_crashes,_hangs,_gives_an_error_message,_does...
12 days ago | 0
MATLAB Classification Learner App
Here is what the AI Chat Playground says: Question: Does ClassificationLearner app use the same training and holdout sets for a...
16 days ago | 0
Hello everyone, I need help. I am working on a robot arm project using MATLAB and a webcam to detect colors. Do you have any lessons or tutorials for me?
Sounds like you have a very controlled environment with known and fixed colors. What you could do with the image is to first ma...
18 days ago | 0
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Connecting points on opposite end of mask
If you can get the inner boundary and outer boundary as separate arrays, then it would be easy to find the boundary point closes...
21 days ago | 0
I am trying to find each particle area and each particle intensity through matlab.
Not sure what you mean by "Gaussian method" or by "I want to calculate individual or each particle intensity not the mean intens...
22 days ago | 0
How can I extract the crack from the noise and human drawn grid lines?
What I would do is to first get rid of the grid lines, then analyze what's left for cracks. To determine the grid line location...
25 days ago | 1
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background subtraction to detect human
If the common background is not zero then the images are not registered (aligned) or the brightness (pixel values) of the backgr...
28 days ago | 0
Estimate area under a curve using finite approximations (lower sum with 4 rectangles of equal length)
Try this: f= @ (x) x.^2; x1=0; x2=1; n=4; totalArea=0; dx=(x2-x1)/n; % width of rectangle x = linspace(x1, x2, ...
30 days ago | 1
your mathworks account login session has expired
I've notified the Mathowrk account team of the issue and they are looking into it. In the meantime, someone called them and the...
1 month ago | 1
Stuck in installation process after accepting terms of license agreement
Try the FAQ: https://matlab.fandom.com/wiki/FAQ#During_installation,_the_installer_crashes,_hangs,_gives_an_error_message,_does...
1 month ago | 2
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How can I plot a 3D parabolic trajectory?
For what it's worth, see my attached demo where I compute just about everything you could want to know about a projectile and it...
1 month ago | 1
Help my password doesn't work to install updates
Can you login to the mathworks.com site from your internet browser with the same password? If not, try changing it then logging...
1 month ago | 1
How to remove least significant bits in a pixel.
A simple method that works for both color and gray scale images is to use bitand: inputImage = imread('lena.jpg'); % Set last ...
1 month ago | 0
how to convert index image into rgb image
When you did this: [X1,cmap]=imread('c09_1.tif'); Did you check the value of cmap? It's probably empty and so passing it to i...
1 month ago | 1
How can I use table() with a variable number of columns?
Yes, you're going to have to do something. If you have more variables that you want to add to a column or columns you want to r...
1 month ago | 0
Matlab system command to run exe with inputs not working, command window pop-up
Did you leave anything out or is that exactly as you have it in the command window? Like are there any spaces in the program, l...
1 month ago | 0
Splitting two nearly overlapping curves
I have a demo that will fit multiple (6 in the demo) Gaussians to a curve. Change the variable in the demo if you want some oth...
1 month ago | 1
