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Image Analyst


Last seen: Today 2010 以来アクティブ

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

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  • MATLAB Central Treasure Hunt Finisher
  • Most Accepted 2021
  • 36 Month Streak
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  • Personal Best Downloads Level 5
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  • Most Accepted 2014
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count the # of rows of CSV files in a folder, part 2
Maybe, but that's unnecessarily complicated. Just use ** in dir to get only csv files in the top level folder and subfolders an...

約14時間 前 | 0

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trainingOptions for a RCNN detector with AlexNet
Why are you retraining it when you said it has already been trained to recognize stop signs? If that's true, just delete the fi...

約14時間 前 | 0

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How to extract a Roipoly area in an image with poly2mask function under my own defined coordinates
poly2mask expects x and y to be in pixels. drawpolygon will give you the coordinates in pixels and thus should be fine for use ...

約15時間 前 | 0

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How to save two variables and create a function to use it later
Try this to save your two vectors in a .mat file and then recall them later % Save time and y variable save('Time Data.mat', '...

約15時間 前 | 0

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+60k Lines on one plot - Too slow
Plot just a subsample of the curves. You'll never be able to see all 60k lines anyway, so just pick, say 1000 of them at random...

約16時間 前 | 0

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Why is imcolordiff not symmetric and what is output range?
I didn't even know about this fairly new function. Maybe I should read release notes. Or maybe I just forgot about it. No it'...

約19時間 前 | 0

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I have sensors values in the form of multiple csv's want to read each file and if the length is less than 800 take average of each column and insert in the last of csv
See the FAQ: https://matlab.fandom.com/wiki/FAQ#How_can_I_process_a_sequence_of_files?

約21時間 前 | 0

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generate a random number base on pdf function
You need to do "inverse transform sampling" so you need the CDF, as the esteemed @John D'Errico said. https://en.wikipedia.org/...

約21時間 前 | 0

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Added a new Toolbox but Matlab says I don't have it
Try restoredefaultpath If that doesn't fix it, either reinstall, or call tech support on Monday for free installation suppo

約22時間 前 | 0

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how to write codeing phylogenetic diversity index
I'm assuming you don't have the inputs needed to use that index. Maybe pick a different diversity index - one that is easier to...

約22時間 前 | 0

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How can I make .mat file for SVM with 85 images?
What are the features that you measure for your SVM? You can collect them all in to a table for your training images, then use ...

約22時間 前 | 0

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Do you know any histogram modification methods?
In the Image Processing Toolbox there are histeq, which gives lousy images, adapthisteq which gives good images. imadjust wh...

約22時間 前 | 0

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I have problem to open Deep learning App
Try this. Tell us what you see in the command window: % Check that user has the specified Toolbox installed and licensed. % h...

約22時間 前 | 0

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How do I store an input value to a variable each time?
See this snippet of code. Adapt as needed % Ask user for two floating point numbers. defaultValue = {'45.67', '78.91'}; titl...

1日 前 | 1

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can someone teach me how to find optic disc using three channels (RGB) ,shannon information content per channel in the ROI, OD centre using the circular Hough transform
Are you talking about color channel? The blue channel should have the greatest contrast between the retina and the optic disc. ...

1日 前 | 0

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How to write MATLAB Scripts for FLIR's ResearchIR?
You should ask FLIR or check the FIle Exchange. All I have is the attached demo, and my Image Segmentation Tutorial: Image Ana...

1日 前 | 0

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I want to find end to end distance of this skeleton image
What exactly is the end to end distance? Do you mean the Feret diameter bwferet? Do you mean the sum of all white pixels to ...

1日 前 | 0

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How do I export a complete list of users at my institution?
Ask the license administrator at your institution. They may have that. Now whether they'll hand over the list to you is anothe...

1日 前 | 0

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How can I create a curve that will fit my data?
fitnlm in the Statistics and Machine Learning Toolbox, since 2013b, though you should probably upgrade your antique 8 year old v...

1日 前 | 0

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Help with the code for converting hyperspectral image to excel file
Try this: baseFileName = sprintf('%s%s%d.xlsx', dataname, datasetname, i); fullFileName = fullfile(dataSaveDir, baseFileName);...

1日 前 | 0

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How to use the same directory for all functions in app designer?
This works on my computer: Folder = 'E:\Movies'; % FileList = dir(fullfile(Folder, '*.mkv')); FileList = dir(fullfile(Folde...

2日 前 | 0

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How to find the curvature of a surface plot?
Youi have to define where the "top part" is, particularly if the whole thing is curved, just to a greater or lesser degree. Is ...

2日 前 | 0

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Thinning lines preserving 4-connectivity
There does not seem to be an option to skeletonize with bwskel or bwmorph to create a skeleton with 4-connectivity. It looks li...

2日 前 | 0

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New to coding - Error /.DS_Store (Name is nonexistent or not a directory) on MacBook
I think that's just some sort of system bookkeeping file on Macs. It's not a file you'd ever want to process in any way so just...

2日 前 | 0

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How to use the same directory for all functions in app designer?
Try this: folder = pwd; % wherever you want % Get a list of all .txt, .png, and .csv files: fileList = [... dir(fullfile...

2日 前 | 0

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How can I create a curve that will fit my data?
I can see from what you did plot that there are not enough points in "dataset" to get the three colored curves that you are hopi...

2日 前 | 0

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How to run a .exe file in other computers without Matlab?
I don't think so because the library is so huge. It's up to 3.6 GB now. I don't think a 3.6 GB executable would be good. So t...

2日 前 | 0

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Resolving value of variable to restricted range
I don't think you need an if statement or a for loop. Here is one way to do it: X = 30 % Sample starting number. while X < -p...

3日 前 | 0

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Speeding up fread for random position in big file
There is also memmapfile - a function older than the datastore family of functions. Maybe @Steven Lord can explain the differ...

3日 前 | 0

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In a custom CNN network, how can I know about the input size for each layer?
When you build a custom network, for example like this: layers = [ imageInputLayer([227, 227, 3]) convolution2dLayer(...

3日 前 | 0

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