Image Analyst

Last seen: Today | Active since 2010

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

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

Statistics

All

View badges

Content Feed

Answered
How to find the Feret Diameters of a leaf
Did you search the tags for leaf? Because there are lots of questions about analyzing leaves. Here is a solution for a single ...

ungefär 11 timmar ago | 0

Answered
It either tells me "Too many arguments specify one" or "index in position 2exceeds array bounds" for line 9 (plot)
Evidently sim does not produce 3 output arguments. You seem to think it will give you t, x, and y. It does not. help sim Try...

ungefär 11 timmar ago | 0

Answered
Matlab app for non matlab software holders
If you have the compiler toolbox you can compile a standalone executable for them. See the FAQ: https://matlab.fandom.com/wik...

ungefär 23 timmar ago | 1

Answered
How to call sigmoid function inside runge kutte orde 4? Is it possibel?
To call a function from within another function, just call the function by name and pass it the arguments it wants. For example...

en dag ago | 0

| accepted

Answered
Matlab ignores the initial working folder setting
Create a startup.m file and put it in a folder that is at the top of your path. You can then have it cd to whatever folder loca...

en dag ago | 0

Answered
how to calculate the area of each bin of intersection of a circle and mesh grid?
Try this: % Demo by Image Analyst to separate point sets using the convex hull. clc; % Clear the command window. close all...

en dag ago | 1

| accepted

Answered
Create transparent overlay imagesc for certain values
You can use labeloverlay

2 dagar ago | 0

Answered
Deconvolution process of IR spectral data
Did you try conv or deconv or any related functions?

3 dagar ago | 0

Answered
How to detect green laser spot with nearly white center
If it worked with a green LED but not the green laser because the green laser dot is more white inside, then just fill the binar...

3 dagar ago | 1

Answered
All functions in a script must be closed with an 'end'.
Try this: chisquare = chi2inv(0.95,2); %inverse of the chi-square cumulative distribution function with 2 degrees of freedom at...

3 dagar ago | 0

Answered
BEAR Toolbox excel result not showing
Are you absolutely sure you don't already have that file open in Excel when you try to write it out (again)?

3 dagar ago | 0

Answered
Turning a double array into a cell array in a big program
Instead of control-F try Control-H and use the Replace All button.

3 dagar ago | 0

| accepted

Answered
Quantifying red in a recorded video
See attached demo. I track a green Sharpie marker. You can easily adapt it to track something red in the video.

3 dagar ago | 0

Answered
I have a matrix with elements both real and complex.I want to find Max value within a column of that matrix ,,ignoring all the complex element in that column.
Try this: v = [1; 2; 3+2i] goodRows = imag(v) == 0 theMax = max(v(goodRows))

3 dagar ago | 0

Answered
Unzipping multiple folders to access one compressed file within the folder.
Did you try unzip? Did you see the FAQ: https://matlab.fandom.com/wiki/FAQ#How_can_I_process_a_sequence_of_files?

3 dagar ago | 0

Answered
How to load .mat file to base workspace using App Designer?
It's usually not a good idea to load variables into the base workspace. It's best if you just load it into your program as a gl...

3 dagar ago | 0

Answered
MATLAB loses track of directories/functions in the middle of a loop
It's hard to guess without any code. Are you sure you're providing the entire complete path to whatever function needs the fold...

3 dagar ago | 0

Answered
Image Segmentation Bounding Box
If you don't have a background image, you can create one by taking the mode of every pixel over all frames in the video (or as m...

3 dagar ago | 0

Answered
How to detect the dimension of a square section in an image ?
Try this: % Demo by Image Analyst clc; % Clear the command window. close all; % Close all figures (except those of imtool...

4 dagar ago | 0

| accepted

Answered
Solve "MathWorks Account Unavailable - Technical Issue" with Customer Support
@Micha if you have difficulty installing or launching/running MATLAB, you can call tech support. They give free telephone suppo...

4 dagar ago | 0

Answered
How to detect the dimension of a square section in an image ?
Simply threshold the underlying grayscale image (not the pseudocolored image) and call bwareafilt to extract the 3 largest blobs...

4 dagar ago | 0

Answered
Fill the lines of incomplete triangles and form complete triangle.
Try this: % Demo by Image Analyst clc; % Clear the command window. close all; % Close all figures (except those of imtool...

4 dagar ago | 0

Answered
I want to extract the temperature from the IR image at every pixel
You need to "undo" the colormap and get back to the original temperature image. See my File Exchange demo: https://www.mathwor...

4 dagar ago | 0

Answered
how to calculate the area of each bin of intersection of a circle and mesh grid?
Is that 7 mm by 7 mm? Or pixels? If pixels you need to know how many pixels are in a mm. If you want individual areas of each...

4 dagar ago | 0

Answered
How to extract string/numbers after a keyword in a text
You might like to know about dictionary help dictionary

4 dagar ago | 0

Answered
Creating Mask to eliminate background in ROI from threshold for IR image
You forgot to attach screenshots, but I can imagine. I imagine you have a pseudocolor image of a thermal scene. I guess the wo...

4 dagar ago | 0

| accepted

Answered
Unable to "read" Text Area
Good one: "I've confrimed name/no typos." and "My text ares is..." Ha ha. 🤣 Anyway what is selection and selection.TypeText?...

5 dagar ago | 0

Answered
GLOBAL VARIABLE :HOW USE IT?
See the FAQ: https://matlab.fandom.com/wiki/FAQ#Are_global_variables_bad?

5 dagar ago | 0

Answered
TASK Create a variable volumes that contains the last two columns of data. You can see the size of data in the output pane to the right of your screen.
Is data a 3-D array? What does this show" whos data If data is a 3-D array you need to do volumes = data(:, 3:4, ;) If data...

5 dagar ago | 0

Answered
I don't understand why the last line is wrong
Not sure what your goal is, but you can't subtract histogram objects. Perhaps you want to use histcounts() or get a property of...

5 dagar ago | 0

Image Analyst

Statistics

Community

MATLAB Answers

MATLAB Answers

Cody

File Exchange

File Exchange

File Exchange

File Exchange

File Exchange

MATLAB Answers

MATLAB Answers

MATLAB Answers

Content Feed