Image Analyst
Followers: 101 Following: 0
Senior Scientist (male/man) and Inventor in the Procter and Gamble Company, one of the world's 10 largest industrial corporations. I did image analysis full time until my retirement in 2023 and currently have only part time jobs with P&G. I have Ph.D. in Optical Sciences specializing in imaging, image processing, and image analysis. 45+ 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.
Programming Languages:
MATLAB, Visual Basic
Spoken Languages:
English
Pronouns:
He/him
Professional Interests:
Industrial Statistics, Image Processing and Computer Vision
MATLAB, Visual Basic
Spoken Languages:
English
Pronouns:
He/him
Professional Interests:
Industrial Statistics, Image Processing and Computer Vision
統計
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回答済み
How to calculate spray cone angle with videos?
I've posted spray angle demos before. Have you searched the Answers forum?
How to calculate spray cone angle with videos?
I've posted spray angle demos before. Have you searched the Answers forum?
3日 前 | 3
回答済み
Plots in appdesigner grids are not the same size
Try setting the InnerPosition or OuterPosition property of the axes to match each other.
Plots in appdesigner grids are not the same size
Try setting the InnerPosition or OuterPosition property of the axes to match each other.
6日 前 | 0
回答済み
Find x values where y values are the same from a set of data.
Looking at your plot, the D1 and D8 signals look similar but not the same - not exactly identical like it was just copied to a n...
Find x values where y values are the same from a set of data.
Looking at your plot, the D1 and D8 signals look similar but not the same - not exactly identical like it was just copied to a n...
6日 前 | 0
回答済み
Unable to set breakpoint
Is the file SAVED? If it is, there will be no * next to the file name on the tab. If it is NOT saved, there will be a * next t...
Unable to set breakpoint
Is the file SAVED? If it is, there will be no * next to the file name on the tab. If it is NOT saved, there will be a * next t...
9日 前 | 0
回答済み
matlab installation fail at login account
That's an error I've not seen. I'd ask your professor first and if they don't know I'd call Mathworks on Monday. They give fre...
matlab installation fail at login account
That's an error I've not seen. I'd ask your professor first and if they don't know I'd call Mathworks on Monday. They give fre...
17日 前 | 0
回答済み
Find specified number of points on curve with identical chord length (not arc length)
Use pdist2 to find the distance of every point to every other point. Then run along every row, starting with the diagonal eleme...
Find specified number of points on curve with identical chord length (not arc length)
Use pdist2 to find the distance of every point to every other point. Then run along every row, starting with the diagonal eleme...
23日 前 | 0
回答済み
How to remove unwanted double image in plot
Try something like this with your data [sortedx, sortOrder] = sort(x, 'ascend'); % Sort x and get the order it was sorted in. ...
How to remove unwanted double image in plot
Try something like this with your data [sortedx, sortOrder] = sort(x, 'ascend'); % Sort x and get the order it was sorted in. ...
23日 前 | 1
回答済み
Identifying bright spots in RGB image
If the spots are always about the same size and white, then you can just segment out white regions and then filter out things th...
Identifying bright spots in RGB image
If the spots are always about the same size and white, then you can just segment out white regions and then filter out things th...
約1ヶ月 前 | 1
回答済み
2026a Release Date?
They don't announce the date in advance. You can check the website, which usually has it available for download before you get ...
2026a Release Date?
They don't announce the date in advance. You can check the website, which usually has it available for download before you get ...
約1ヶ月 前 | 1
回答済み
When plotting 3D graphs in MATLAB, can the x and y axis labels be made flush with the x-y plane, as shown in the figure below?
If you have a fixed orientation of the axes, try assigning the Orientation or Rotation properties of the tick labels. However I...
When plotting 3D graphs in MATLAB, can the x and y axis labels be made flush with the x-y plane, as shown in the figure below?
If you have a fixed orientation of the axes, try assigning the Orientation or Rotation properties of the tick labels. However I...
約1ヶ月 前 | 1
Discussion
MATLAB on Artemis II?
Do we know if MATLAB is being used on the Artemis II (moon mission) spacecraft itself? Like is the crew running MATLAB programs...
約1ヶ月 前 | 0
回答済み
Need to download MATLAB 2008b onto my existing computer but no more activations exist for my license
Login to your Mathworks account on the web. Drill down until you see what computers are activated for your license. Tell it to...
Need to download MATLAB 2008b onto my existing computer but no more activations exist for my license
Login to your Mathworks account on the web. Drill down until you see what computers are activated for your license. Tell it to...
約2ヶ月 前 | 0
回答済み
identifying shapes in image
Yeah, of course. You can't use things like aspect ratio, area, etc. to classify shapes. Aspect ratio of a rectangle will chang...
identifying shapes in image
Yeah, of course. You can't use things like aspect ratio, area, etc. to classify shapes. Aspect ratio of a rectangle will chang...
約2ヶ月 前 | 0
回答済み
Width and height values for ROIPosition must be greater than 0. error even when explicitly defining them.
I'm using a Teledyne camera with gentl. What happens if you call this attached InitializeVideoCamera function? It's meant to b...
Width and height values for ROIPosition must be greater than 0. error even when explicitly defining them.
I'm using a Teledyne camera with gentl. What happens if you call this attached InitializeVideoCamera function? It's meant to b...
2ヶ月 前 | 0
回答済み
Identify non accident properties and segment regions of concavity
You can identify concave regions by using bwconvhull and then subtracting, or doing an XOR, with the original binary image.
Identify non accident properties and segment regions of concavity
You can identify concave regions by using bwconvhull and then subtracting, or doing an XOR, with the original binary image.
2ヶ月 前 | 0
回答済み
How can I force a .txt export
First of all NEVER overwrite the built in path variable. It's a reserved variable name and has information in there that you do...
How can I force a .txt export
First of all NEVER overwrite the built in path variable. It's a reserved variable name and has information in there that you do...
2ヶ月 前 | 0
| 採用済み
回答済み
visdiff() is crashing continuously in R2025b
No. But I haven't used it. You are a man of very few words (perhaps because you never read the tutorial link below). I'm not s...
visdiff() is crashing continuously in R2025b
No. But I haven't used it. You are a man of very few words (perhaps because you never read the tutorial link below). I'm not s...
2ヶ月 前 | 0
| 採用済み
回答済み
How to identify a thin line in a noisy sideview picture?
It looks like the blobs are all on the upper side of the water surface. So what I would do is just scan the image finding the l...
How to identify a thin line in a noisy sideview picture?
It looks like the blobs are all on the upper side of the water surface. So what I would do is just scan the image finding the l...
2ヶ月 前 | 0
回答済み
Seeking advice on batch processing for opacity masking in ARK(Auto-Refractor Keratometer) retroillumination images (500+ images)
I agree with John. 500 is not that many and you'd spend more time developing an automatic algorithm than if you just hand traced...
Seeking advice on batch processing for opacity masking in ARK(Auto-Refractor Keratometer) retroillumination images (500+ images)
I agree with John. 500 is not that many and you'd spend more time developing an automatic algorithm than if you just hand traced...
2ヶ月 前 | 0
回答済み
to segment the coins from the background in the image and find the centroid of each distinct segmented coin
It looks like a homework question that gave you some starter code and you're supposed to fill in the commands after the comments...
to segment the coins from the background in the image and find the centroid of each distinct segmented coin
It looks like a homework question that gave you some starter code and you're supposed to fill in the commands after the comments...
3ヶ月 前 | 0
回答済み
searchin for an M file in all folders of my PC.
Try "Everything" by voidtools: https://www.voidtools.com/ It can give you nearly instant results on where files live. Not like...
searchin for an M file in all folders of my PC.
Try "Everything" by voidtools: https://www.voidtools.com/ It can give you nearly instant results on where files live. Not like...
3ヶ月 前 | 0
回答済み
to segment the coins from the background in the image and find the centroid of each distinct segmented coin
You need to use regionprops See my Image Segmentation Tutorial in my File Exchange: Image Analyst's File Exchange It does exa...
to segment the coins from the background in the image and find the centroid of each distinct segmented coin
You need to use regionprops See my Image Segmentation Tutorial in my File Exchange: Image Analyst's File Exchange It does exa...
3ヶ月 前 | 0
回答済み
How to make a shape and find orientation of said shape from a BW mask?
You can use regionprops and look at 'Orientation' and the Feret properties with regionprops or bwferet.
How to make a shape and find orientation of said shape from a BW mask?
You can use regionprops and look at 'Orientation' and the Feret properties with regionprops or bwferet.
3ヶ月 前 | 0
回答済み
How to do 1D signal analysis?
Right before %% Compute PSDs for original signals [f1, PSD1] = myPSD(sig1, Fs); [f2, PSD2] = myPSD(sig2, Fs); you're going t...
How to do 1D signal analysis?
Right before %% Compute PSDs for original signals [f1, PSD1] = myPSD(sig1, Fs); [f2, PSD2] = myPSD(sig2, Fs); you're going t...
3ヶ月 前 | 0
回答済み
How to do 2D Image Processing?
For some examples, see my File Exchange: https://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862&sort=downl...
How to do 2D Image Processing?
For some examples, see my File Exchange: https://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862&sort=downl...
3ヶ月 前 | 0
回答済み
Morphological Image Processing: Object Identification and Separation
There are MATLAB demos that separate particles. See blogs: Watershed transform question from tech support » Watershed transfor...
Morphological Image Processing: Object Identification and Separation
There are MATLAB demos that separate particles. See blogs: Watershed transform question from tech support » Watershed transfor...
3ヶ月 前 | 1
回答済み
Not able to access license.
Did you try to do what it said about logging in to your account to fix it? And then calling tech support and ask for installati...
Not able to access license.
Did you try to do what it said about logging in to your account to fix it? And then calling tech support and ask for installati...
3ヶ月 前 | 0
回答済み
Can I get specific principal components from PC bands?
How did you specify or locate the coordinates in your MRI images? And is it a set of (x,y) coordinates, one set for each image?...
Can I get specific principal components from PC bands?
How did you specify or locate the coordinates in your MRI images? And is it a set of (x,y) coordinates, one set for each image?...
3ヶ月 前 | 0
回答済み
how do i fill in the shapes
If you're ultimately trying to say that "this shape is a yellow triangle" and "this shape is a blue square" then some of what yo...
how do i fill in the shapes
If you're ultimately trying to say that "this shape is a yellow triangle" and "this shape is a blue square" then some of what yo...
3ヶ月 前 | 1
回答済み
how do i fill in the shapes
I have no idea what "how do i fill in the outline of the shapes so i can recognise them later " means. What do you really want ...
how do i fill in the shapes
I have no idea what "how do i fill in the outline of the shapes so i can recognise them later " means. What do you really want ...
3ヶ月 前 | 0
