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Image Analyst


Last seen: Today |  Actif depuis 2010

Followers: 41   Following: 0

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

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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  • MATLAB Central Treasure Hunt Finisher
  • Most Accepted 2023
  • Most Accepted 2022
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  • Personal Best Downloads Level 5
  • Editor's Pick
  • Most Accepted 2021
  • First Review
  • 5-Star Galaxy Level 5
  • First Submission
  • 36 Month Streak
  • Most Accepted 2014

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Not able to see where the index is going past 5
Names only has 4 strings in it, not 5 so that's why you get the error. The code is not very robust. Here, I've improved it by ...

2 jours il y a | 0

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How to extract pixel intensity of a grayscale image (*.jpg) to a MS Excel table
See my attached demo that writes an image out to a CSV text file that can be read in by Excel.

3 jours il y a | 0

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Extracting metrics from cellular pattern
Try this: clear all; close all; clc % Load the synthetic detonation pattern image gray_image = imread('CellularPattern_Test.p...

4 jours il y a | 0

| A accepté

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What is the ratio of area of the flame between the last frame and the first? What is wrong with my approach? I am getting an incorrect answer upon submission.
Try different thresholds to see which one gives you the correct answer. Maybe you were not using the same threshold as the inst...

4 jours il y a | 1

| A accepté

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Extracting metrics from cellular pattern
I think I can get fairly close. Can you give the code where you start with the image and get the binary/segmented image of the ...

5 jours il y a | 0

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Is there a meaningful guideline on when to use parentheses vs square brackets vs curly brackets in writing MatLab code?
@Jerome yes there is. If you look at this FAQ entry: What is a cell array I think that it gives a pretty good intuitive idea ...

6 jours il y a | 1

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This is face morphing. Now I want to save and convert to a gif image format.
That is not face morphing. Morphing is not just a weighted sum of images. The image needs to be warped before adding. So you ...

6 jours il y a | 0

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If f1(x,y)≤z≤f2(x,y), how to draw the range of z?
Do you want just the magnitude of the range, without visualizing the starting and stopping points? If so you can just subtract ...

7 jours il y a | 0

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Unable to create a exponential graph
I don't know how to do it in Simulink, but this seems to work fine in MATLAB: uTemperatureRange = linspace(10, 200, 1000); yDe...

9 jours il y a | 0

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How to quantify shape similarity between two vectors.
See the Mathworks page on spectral signature matching: https://www.mathworks.com/help/images/target-detection-and-spectral-matc...

9 jours il y a | 0

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Exporting Graphs from Matlab App in PNG or JPG
Assuming it's the current/active figure, try exportgraphics(gcf, 'ECRTools.png'); in the command window. help exportgraphics

9 jours il y a | 0

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Automatically add prefix to loaded sheetname, and output,
You have a new workbook with the new name 'reshapedMaleControl.xlsx'. If your original workbook had multiple sheets, it looks l...

9 jours il y a | 0

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How to interpret the wrong image background of data augmentation?
Why are you calling imcomplement? Try not doing that. What is the original background: white or black? Finally, you could j...

11 jours il y a | 1

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Matlab executable throws error in opc.ua.Client
Try including that file explicitly in your compilation, something like mcc yourapp.m -a " C:\Program Files\MATLAB\MATLAB Runtim...

11 jours il y a | 0

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How can I apply a lowpass filter samplewise in my code?
One way is movmean.

11 jours il y a | 0

Réponse apportée
What would cause Matlab to lose track of gcf()?
Don't do it like that: gcf().something. Assign something to gcf, like g: g = gcf; % No parentheses after gcf. I think a figur...

12 jours il y a | 1

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How do I change the output color when using the disp function?
See this File Exchange entry by @Yair Altman https://www.mathworks.com/matlabcentral/fileexchange/24093-cprintf-display-formatt...

12 jours il y a | 0

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Assigning features to the matrix based on windowing
Why not just tack on the condition and device as the last two rows in your loop? feature{4}(k) = data(k, 2); feature{5}(k) = ...

13 jours il y a | 0

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How to determine the midline in brain images.
Hard for us to say, don't you think, without seeing an image? What is the midline? Is it just the geometric midline as determi...

13 jours il y a | 0

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Segment connected regions in binary image
See these links: Watershed transform question from tech support » Watershed transform question from tech support Marker-Contro...

13 jours il y a | 0

| A accepté

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I need help please to obtain histogram clonocolour values of TIF type photos. I can do this separately but i am struggling to do this with multiple images at a time.
Rather than try to figure out how many cells are there, I'd just simply compute the area fraction of purple. It will correlate ...

16 jours il y a | 0

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how to divide a color image into multiple binary codes
Not sure what you mean by binary codes. Please explain. How is that different than just a simple tile of the image you extract...

16 jours il y a | 0

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problemas con reconocer licencia
Do exactly what it says to do in the FAQ: https://matlab.fandom.com/wiki/FAQ#After_installation,_MATLAB_crashes_or_gives_an_erro...

17 jours il y a | 0

| A accepté

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How to plot temperature along a defined line within a 2D temperature field
I know you already got an answer that you've accepted but I just thought I'd mention improfile. It can give you a profile of va...

17 jours il y a | 0

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Open and read unique spectrum file .spc
If youi're dealing with Spectroscopy, you really need to get GSTools library. It has functions to read SPC file(s), and other u...

17 jours il y a | 0

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the username and password?
Ask your professor how to do it, or another student who has done it successfully. If that doesn't work, see the FAQ: https://m...

17 jours il y a | 0

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I need to innovatively produce a 140x8 matrix filled with random grades from 140 students
Not sure what qualifies as "innovative" but how about making a matrix of all prime numbers, rescaled? % Get a list of 8*140 pri...

18 jours il y a | 0

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Projection of satellite image
Try the Registration Estimator app on the Apps tab of the tool ribbon. I haven't used it but with most or all apps, you can exp...

19 jours il y a | 0

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MATLAB Plots *.tif According to Light
This is what I got so far: % Initialization steps. clc; % Clear the command window. close all; % Close all figures (excep...

19 jours il y a | 1

| A accepté

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choose random places on matrix
Simply use randperm and linear indexing. No need to figure out or convert locations to (row, column) indexes (that's a waste of...

20 jours il y a | 0

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