Image Analyst

Last seen: Today | Actif depuis 2010

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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

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

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Smooth Results from bwboundaries
If you want to smooth boundaries you can use splines or pchip. I'm attaching demos. Another option if you have a binary im...

environ 4 heures il y a | 0

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Display a small matrix as a gray scale image
Try using the 'InitialMagnification' option in imshow T2 =[ 0.4706 0.9804 0.8392 0.3216 0.9804 0.8392 ...

environ 6 heures il y a | 0

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how to remove old licenses
If you can't remove them by logging in to your account on the website, I'd call them on the phone and ask for sales or tech supp...

environ 15 heures il y a | 0

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Take 3x3 nearest neighbours round centroids of all spots and find the median of their mean
If you've used regionprops to find the centroids or the spots, then why not simply also ask it for the mean intensities? props ...

1 jour il y a | 0

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Variable might be set by a nonscalar operator
If theta_deg is in degrees, you should be using the degrees version of cosine, not the radian version. In other words use cosd,...

5 jours il y a | 1

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This erro occurred while cheking the code - "invalid use of operator"
Don't put single quotes around your variables. And you don't need the output arguments of the filenames. You can return the x_...

5 jours il y a | 0

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Issues extracting fibers from an image
The attached demo, while not a complete solution for you, may be helpful in enhancing the fibers. Sorry, but it's all I have ...

6 jours il y a | 0

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I want to detect leaf shape by line tracing.
Do a search of this forum for the tag "leaf". There are lots of examples. Basically you can probably segment the code by color...

7 jours il y a | 1

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Can I generate a standalone app with a trial license
I'm pretty sure you cannot compile code into a standalone app with a trial license. And I think some of the cheaper licenses wo...

7 jours il y a | 0

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Can I convert shades of red (Pink, Red, Maroon) in this RGB image to one single color, lets say blue?
See attached examples/demos.

7 jours il y a | 0

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How to make multiple lines of best fit into one scatter graph
See my attached demo. It does a piecewise linear fit over two sections, finding the best splitting point. You can adapt it to ...

7 jours il y a | 0

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What plugins to be installed for MATLAB
I don't know what you want to do. If you're acquiring your images from some medical imaging instrument and bringing them to you...

8 jours il y a | 0

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Programmatically setting a radio button from within App Designer
I wouldn't use eval. What if you just set the other buttons also if setting the one you want doesn't change the others automati...

8 jours il y a | 0

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Can someone rectify this code?
When you do this: out=[(1:1:10) ' fsolve(@myfun, Q0) '] it's trying to take a vector [1,2,3,4,5,6,7,8,9,10] and append a strin...

11 jours il y a | 0

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Plotting around zero deg. Angle
I think you have to convert to rectangular/cartesian coordinates. pol2cart might help. You can use XData and YData in imshow i...

17 jours il y a | 0

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The surface area won't round to one decimal place and I don't know how to get rid of the 'e's.
To get some other format displayed other than the default one, you can try to use format. If none of those built-in formats are...

17 jours il y a | 0

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MATLAB Optional Function Arguments
Try inputParser help inputParser

17 jours il y a | 0

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edge detection and comparison
What I would do is this: First use a telecentric lens - not a regular lens. Then make sure the backgrounds are the same (lik...

19 jours il y a | 0

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How do I process and display a 10 and 12 bit image in matlab?
Use [] to scale the actual data to whatever dynamic range your display can handle. For exampls imshow(snapshot2, [], "Parent",...

21 jours il y a | 0

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How to make an subscript in this specific manner?
Put the max in braces: ylabel('$u_{max}$','interpreter','latex','FontSize',14);

21 jours il y a | 0

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please help me to resolve this this
You're taking the largest blob in each frame. Display that blob all by itself to make sure that it's the same bubble blob risin...

23 jours il y a | 0

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Find least binary palindrome greater than a natural number
Can't you just do b = dec2bin(d+1) If not, then I'm not sure what you want. I'm not sure how 17 is the smallest natural numbe...

24 jours il y a | 0

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Activation a new computer
You can deactivate a computer you no longer have access to by logging in to your Mathworks account (avatar on the upper right). ...

25 jours il y a | 1

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How do I solve this issue, Error using vertcat Dimensions of arrays being concatenated are not consistent. Error in (line 22) A = [G1 +G2 +G3 -G1 -G2;
Your top row of A has 5 elements (columns) and you're trying to put a row under it that has only 3 elements (columns). You can'...

26 jours il y a | 0

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How do I project a map from the plane to a sphere?
Here is a demo for how to map an image onto a 2.5-D surface. The surface doesn't go all the way around in 3-D though. % Demo...

26 jours il y a | 0

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what is the ebst way to learn analytical Plotting
Here is the link we usually give: Best way(s) to master MATLAB? - MATLAB Answers - MATLAB Central Lots of ideas in tthe above ...

26 jours il y a | 0

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Compressing pixelated image blocks into array
Get rid of ones(). Hopefully this well commented demo will explain since it covers three scenarios. @Sushruta Chandramouli I t...

26 jours il y a | 0

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Compressing pixelated image blocks into array
Just get rid of the ones() in your fun definition: fun = @(block_struct) mean2(block_struct.data)*ones(size(block_struct.data))...

26 jours il y a | 0

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why is my cell array being read as char
Are you sure you're getting the class of the whole cell array instead of the class of one of the contents of one cell in the arr...

30 jours il y a | 0

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How do I add generated audio to a silent video?
Did you see https://www.mathworks.com/matlabcentral/answers/434844-how-to-combine-audio-and-video?s_tid=answers_rc1-3_p3_MLT

environ un mois il y a | 0

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