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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:
Deep Learning with Images, Industrial Statistics, Image Processing and Computer Vision

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  • MATLAB Central Treasure Hunt Finisher
  • Most Accepted 2021
  • 36 Month Streak
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  • Most Accepted 2014
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Content Feed

Answered
How to use OCR for charater regocnition on picture of keyboard
ocr does not work well unless the letters are more than 20 pixels high. How high are your pixels? help ocr

4 hours ago | 0

Answered
Error saying ''Dot Indexing is not supported for variables of this type".
@Sowparnika and @Sowparnika R S It doesn't make any sense to have a function to extract contents/variables out of a cell array, ...

4 hours ago | 0

Answered
not sure what this code mean.
Take m and multiply it element-by-element times c. Then multiply by 0.5 and add it in to the original c to get a new c. Now yo...

4 hours ago | 2

| accepted

Answered
How can I extract capital words from a string
Try this: s = "a_PSTC_SSSA_MNG_epwcrrauut_A_Extrastuff" words = strsplit(s, '_') for k = 1 : numel(words) thisWord = wor...

6 hours ago | 0

Answered
How to graph ln(x^2)=0.7?
Try this: x = linspace(1, 2, 10000); y = log(x.^2); plot(x, y, 'b-', 'LineWidth', 2) hold on; yline(0.7, 'Color', 'r', 'Lin...

6 hours ago | 0

Answered
whats the error in this code
See fix in your duplicate question: https://www.mathworks.com/matlabcentral/answers/1870837-how-to-fix-these-code-lines-for-app...

6 hours ago | 0

Answered
Issue with importing coloured image into MATLAB
Is your colored image floating point with values outside the range of 0 to 1? If so everything 1 or larger will show up as whit...

6 hours ago | 0

Answered
how to count the number of scatter points in a each sector region of the 6 concentric circles ?
If you have the x and y points then you can get the angle of each point using atand angles = atand(y ./ x) Then you can take t...

17 hours ago | 0

Answered
Identifying piano frequencies via color coding in the frequency domain
Have you tried spectrogram? Have you looked into Blind Source Separation or INdependent Components Analysis? This is...

17 hours ago | 0

Answered
How to detect cluster of radial lines which are generated from same point ?
Not sure what you want to find out since "detect" is so vague and unspecific. Please be specific. Like do you want a length di...

17 hours ago | 0

Answered
How can I calculate vector relative errors in percent?
You need to have a reference signal. Note: variance of a signal is not the error of a signal unless the true signal is a consta...

1 day ago | 0

Answered
how to fix these code lines for app designer
Instead of f1=fspecial('average',[5,5]); I=imshow(f1,'parent',app.UIAxes2,... 'XData',[1 app.UIAxes2.Position(3)],... ...

1 day ago | 1

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Answered
How i can convert any type of image to ASCII values and store these values into one-dimensional array?
I don't understand why you want to do that. If you want the original image later, just make a copy of A before you alter it. Y...

1 day ago | 0

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Answered
So I have been assigned with this problem but I haven't been taught anything about MATLAB.I would be grateful if anyone is willing to help me with this.
Of course we can't just do the entire homework problem for you so the answer is you need to learn how to program in MATLAB yours...

1 day ago | 0

Answered
How to rename a lot of mfiles in a folder
Try this: folder = pwd; % or 'D:\something' filePattern = fullfile(folder, '*.*'); % or '*.m' if you want only m-files. fileL...

1 day ago | 0

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Answered
How can I do curve fitting depending in the following formula?
So you know K, M, W, and 3 of the 7 values of V. Can't you just multiply out all the matrices, and have the remaining values of...

1 day ago | 1

Answered
Histogram only returns one output.
Try this: rng('shuffle') A = randperm(100, 10) theHistogram = zeros(1, 10); for k = 1 : numel(A) strNumber = sprintf('%...

1 day ago | 0

Answered
Vertical concatenation of 8 table with identical rownames
I don't think you can just vertically stitch them together because you are using row names. What are the row names? Do you rea...

1 day ago | 0

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Answered
Counting number of white > 5 Pixel objects in BW image
You can use bwareafilt or bwareaopen before calling regionprops. BW4 = bwareafilt(BW4, 5); % Retain only blobs 5 pixels or bigg...

1 day ago | 0

Answered
peaks detection in a smoothed processed signal
Try this (requires Image Processing Toolbox): threshold = 2e-5; % for sqauring or 200 for "original signal". mask = signal > t...

1 day ago | 0

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?

2 days 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.

2 days ago | 0

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

2 days 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...

2 days 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...

2 days ago | 0

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

2 days 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...

2 days ago | 0

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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...

2 days ago | 0

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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...

2 days 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/...

2 days ago | 0

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