Image Analyst
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. 40+ 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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Content Feed
Unable to activate your machine
Well I'd do what it says : "refer to the following solution ID, to help resolve this issue: 1-661QJD”. What happened when you d...
38 minutes ago | 0
How do I cut the signal into several parts?
Please post the graph along with annotations about where you want to do things to the signal. Did you try thresholding? quietI...
11 hours ago | 0
k means clustering shows only blank image if i loop it k times
See attached demos.
11 hours ago | 0
How can I make a function be run with only teenager variables in matlab
Try this: function A = optim(B, C, D, E) % Clip values to a defined range B = max([1, B]); % Clip so there are no values lowe...
22 hours ago | 0
Selecting a row of numbers clockwise around a matrix of values
mTop = m(1, :); mLeft = m(2:end, end); mBottom = fliplr(m(end, 1:end-1)); mRight = flipud(m(2:end-1, 1)); outerValues = [mTo...
1 day ago | 0
extract pixels where value is greater or less than a specified value
Use ismember() to determine if one set of values is contained within another set of values. Not sure what ind represents. Line...
1 day ago | 0
No such file or directory for a found file.
Try this: topLevelFolder = fullfile(pwd, 'Aero Lab Airfoil Testing/2002 Aero Lab 2 - Group Data'); filePattern = fullfile(topL...
2 days ago | 0
matlab crashes when trying to box plot
If you sent in the crash report, they will analyze it and reply back to you by email. If you need more immediate help, call the...
2 days ago | 0
Ego detecting the shape of an object using either radar, lidar, or vision camera
Here are ways to get help: https://www.mathworks.com/services/consulting.html?s_tid=hp_ff_s_consulting TUTORIAL: How to ask a ...
2 days ago | 0
how can I extract 2D matrices for xy, xz, yz planes from a 3D matrix and use the pcolor function?
Try imshow() instead of pcolor. pcolor() doesn't even show you the last row or column so that's why I don't like pcolor(). ims...
2 days ago | 0
Create a matrix of 50 rows and 50 columns. The odd columns should contain values 2 and the even columns values 0
There are several ways to do this. What did you try? You can do it in 2 lines of code. Here is the first one: m = zeros(50,5...
2 days ago | 0
sum only consecutive 1's in matrix
This will do it: % Read in data. s = load('PNM.mat') particleNotMoved = s.particleNotMoved % Prepare a matrix to hold our ou...
2 days ago | 0
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RGB to HSV and then quantization of H and S into 72 and 20 bins respectively.
Try this: rgbImage = imread('peppers.png'); subplot(2, 2, 1); imshow(rgbImage); title('Original RGB Image') impixelinfo; %...
2 days ago | 1
| accepted
how can i change seabed color in acoustic channel
% Plot in black plot(x, signal, 'k-', 'LineWidth', 2); % Or to plot in brown brown = [96, 57, 19] / 255; plot(x, signal, '-'...
2 days ago | 0
Error in using NaN value and calculate the mean of each row
Did you try mean(): rowMeans = mean(data(:, 4:end), 2, 'omitnan');
2 days ago | 0
Cant load large data set
That's actually quite a small data set - maybe you only included the first 5000 rows. Anyway you can read it into a matrix or a...
3 days ago | 0
I am trying to write a function that draws a card from the deck, adds it to a hand, then deletes that card from the deck.
I'm pretty sure you don't need cell arrays. A regular numerical (double) array of length 52 should work. For what it's worth, ...
3 days ago | 0
reading multiple images in a folder and storing the data
There is nothing in that code that stores anything in a text file. Try fopen(), then fprintf() and then fclose(), or the writem...
3 days ago | 0
Change number of drop downs based on spinner value using matlab app designer?
I suggest you place all the drop downs on the figure in App Designer, and then set the visibility of all but the first to off/0/...
3 days ago | 1
| accepted
Will uicontrols eventually be fully deprecated?
The documentation says "The uicontrol function is not supported in App Designer or in apps created using the uifigure function. ...
3 days ago | 0
How to calculate sum area of a particular coordinate?
@mohd akmal masud your t is a table so you need to do it this way: % Load table from mat file. s = load('answers.mat'); t = s...
3 days ago | 0
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Fit surface to position and time data, convert to vectors?
Try this: % Demo to do surface estimation using a scattered interpolant. % Initialization steps. clc; % Clear the command ...
3 days ago | 1
| accepted
Deleting data within row of cells
Did you try a for loop? Here is untested code (because you forgot to attach your data): for k = 1 : numel(C) % Extract th...
3 days ago | 1
how to breaks image in to pixel
Instead of imcrop() you can use indexing: Image= currentimage((j+1) : (j+Height), (i+1) : (i+width));
3 days ago | 0
What is the best program for labeling(Bounding box) the pedestrian in Matlab?
Look at the picture here: https://www.mathworks.com/products/computer-vision.html#object-tracking See people walking and boxes...
4 days ago | 1
| accepted
how to implement LTP Feature extract
Here's help: TUTORIAL: How to ask a question (on Answers) and get a fast answer
4 days ago | 0
| accepted
Trying to find out implementation of the following image
You can display X and then call impixelinfo to mouse around over the image and see the values at the cursor location imshow(X, ...
4 days ago | 0
How to measure deformation/elongation between different images?
Try this: % Demo by Image Analyst clc; % Clear the command window. close all; % Close all figures (except those of imtool...
4 days ago | 0
