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Image Analyst


Last seen: 1 day ago 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:
Deep Learning with Images, Industrial Statistics, Image Processing and Computer Vision

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Content Feed

Answered
How to plot a semi-circle on the horizontal axis in MATLABs & How to shade half the cirlce?
See the FAQ: https://matlab.fandom.com/wiki/FAQ#How_do_I_create_an_arc?

7 hours ago | 0

Answered
Local mean and variance of an image for normalisation
Check out imfilter or conv2 for the local mean. Check out stdfilt for the local standard deviation.

9 hours ago | 0

Answered
Plot in 3D isolines from 2D image
Is surfc what you want? Or one of the numerous contour functions?

10 hours ago | 0

Answered
How to create the game battle ship with a gui
@Amanda click on the battleship tag on the right hand side of this page and you'll find 29 discussions. https://www.mathworks.c...

10 hours ago | 0

Answered
Saving matrices within a cell
Initialize your matrix for all the matrixes allMatrixes = {}; Then after your if block just append your latest matrix: allMat...

12 hours ago | 0

Answered
Matlab menu sum values
Try this: clc; clear; n=input("Počet pohybů na účtu: ") msg = ("Vyber hodnotu: "); vyber = ["-10000" "3000" "15000" "4000" ...

12 hours ago | 0

Answered
Plot graph from tracked points in 2D pictures
Are you sure points is in the form (x,y) and not (row, column) because if it were the plot would be rotated 90 degrees. Why not...

13 hours ago | 0

| accepted

Answered
Airplane collision. (Matlab)
This looks like a homework problem. If you have any questions ask your instructor or read the link below to get started: How d...

13 hours ago | 0

Answered
Unable to find file or directory 'fisheriris.net'
fisheriris.net may be something that was created when someone was doing neural network manipulation of the built-in (with the St...

13 hours ago | 0

Answered
how to form a matrix with non-repeated values?
Maybe shortestpath perhaps? Or, maybe use bwdistgeodesic(). See Steve's blog series: http://blogs.mathworks.com/steve/2011/11/...

13 hours ago | 0

Answered
Align and stitch non-overlapping images
If the max of the cross correlation is not giving the correct shift amount, then it's possible the vertical dimension was scaled...

13 hours ago | 0

Answered
How to detect number of bends of racing track starting from image
What I'd do is to get the (x,y) coordinates of the curve in order. You can do this with bwboundaries(). Then define a window s...

13 hours ago | 1

Answered
Trying to get certain values from an excel file as user input
You should probably use readtable or readmatrix since xlsread is deprecated. You should probably plot one or more curves first,...

14 hours ago | 0

Answered
How can I change all numbers in matrix to 1? except for 0
Try this outputMatrix = inputMatrix ~= 0

1 day ago | 0

Answered
measure height of object in millimeter
Yes. If you know the FOV (field of view) in mm then you can. Of course you know the size of your image. So the spatial calibr...

1 day ago | 0

| accepted

Answered
why fft of an even and real signal in time domain gives imaginary part?
You might like to look at Steve's blog on the topic. https://blogs.mathworks.com/steve/2021/02/26/fft-spectral-leakage/

1 day ago | 1

Answered
how to find the days haven't been precipitations in a vector or a file.
Hints: v = randi([0, 5], 1, 20) numZeros = sum(v == 0) valuesAboveThreshold = v(v > 3) % 3 is the threshold

1 day ago | 0

Answered
How to determine inequality in an array
Try ismember

1 day ago | 0

Answered
Power of a binary matrix
What is your expected output? Do you want element by element multiplication or matrix multiplication? Here is element by eleme...

1 day ago | 1

Answered
i want to set x-axis to be in Pico seconds , how to do that
Multiply your x by 10^12. bar(x*1e12, y, 1); xlabel('Time Difference in picoseconds');

2 days ago | 1

Answered
I trying to get a check box to work on a gui
As I check or uncheck the box (badly called "seventh_button") it does display the words according to the value of the checkbox: ...

2 days ago | 1

Answered
K-means clustering animation
See my attached demo where you can make changes to an axes (graph, surface, plot, image, whatever) and then make that into one f...

2 days ago | 0

Answered
I would do I calculate the surface area of an abnormal shape?
Looks like you've processed an image of an eyeball, got a mask, and then used bwboundaries to get a list of (x,y) coordinates. ...

3 days ago | 0

Answered
Hello! How to extract Images in multiple class folders through MATLAB code. I have image dataset (training,testing,evaluation) folders but I have only xlsx file with labels.
Get a directory listing of all the files in your source folder. Read the workbook and get the class label from the appropriate ...

3 days ago | 0

Answered
guys plz if anyone can open my project and tell me the problem i would really appreciate it
After I imported an image it looked fine. It didn't turn all red or green. Don't set XData and yData in imshow. Don't set the...

3 days ago | 0

Answered
How to smooth the curve indicated on the image?
You can use a Savitzky-Golay filter, like the attached demo.

3 days ago | 0

Answered
Convolution without convolution function
I have a manual convolution demo. See attached, and use it if you want.

4 days ago | 0

Answered
guys i need help it says that it cant identify the handle.app.UIAxes3 being that the app.Axes3 is the name of the current app designer folder im working on plz help
Looks like you forgot you were in AppDesigner and reverted to GUIDE programming. In App Designer you use app, not handles. So ...

4 days ago | 0

Answered
Combining rows of each field within a structure
How about this: s = load('Combined_Structure.mat'); m = s.ModOutRstance_interp_x_all; allm = vertcat(m.LHipAngles)

4 days ago | 0

Answered
How to insert picture 1 into picture 2?
See attached demos. Maybe one of them will be helpful.

4 days ago | 0

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