Image Analyst

Last seen: Today | 自 2010 起处于活动状态

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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

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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Script for running all .m files in a large file folder with sub folders.
OK. Good luck with it. You might find the FAQ: helpful: Process a sequence of files To get a list of all m-files in your top ...

1 day 前 | 0

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kinect depth image thresholding
From the RGB image, it looks like it's looking at a flat computer screen. And since that's mostly flat it makes sense that ther...

2 days 前 | 0

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R2024b: documentation installed locally - how can I bookmark help pages?
Can you go to your router settings and assign your computer a static IP address? You should be able to.

2 days 前 | 0

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Need help writing a matlab function.
Replace all your [1, 2, 3; 4, 5, 6] by A. Replace output = hw4_problem1(A) by output = hw4_problem1(A, n) A is a vector, no...

3 days 前 | 0

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Is it possible to make this if statement more concise?
Try % Create three row vectors using linspace, colon operator, and [list] V1 = linspace(2,53,84); V2 = 1:2.3:48; V3 = [1, 42...

3 days 前 | 1

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Calculating Perpendicular Distance Between Detected Edge and Smoothing Function
You could just do a brute force search. Here is untested code. closestDistances = zeros(1, numel(redx)); for k = 1 : numel(re...

5 days 前 | 0

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行列を計算して，代入をしたいのですが，サイズが異なるためできないといわれてしまいます．教えてください．
If you have any more questions, then attach your data and code to read it in with the paperclip icon after you read this: TUTOR...

5 days 前 | 0

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Finding a pattern in a table and the coordinates of the "first hit"
Another way is to use ismember % Load data from .mat file. S = load('Andrew Table.mat'); t = S.Table; % Extract first column...

5 days 前 | 1

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Slow initialization at startup during the "Ready" step
I don't think it should take over 3 minutes to start MATLAB. On my old, slow, severely memory- limited 8 GB Windows computer, i...

5 days 前 | 0

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Can someone help to teach how i want to upload this file into matlab and try preprocessing ?
See the FAQ for code samples: Process a sequence of files

6 days 前 | 0

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what is subplot and how to use it?
Imagine an N by M array of little graphs on your figure. Those are the rows and columns. The third arg is the number of the plot...

6 days 前 | 18

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Merging uniform boxes into larger ones
How about just using the convex hull? boxGrid= [... 0 0 0 1 1 0 0 0 0 0 0 0 0 1 1 0 0 0 ...

7 days 前 | 0

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How to draw spectrum of signal?
Did you try plot()? fm = 1000; % whatever f = [0, 0, fm/2, fm]; X2 = [0, 1, 1, 0]; plot(f, X2, 'r-', 'LineWidth', 4); xlabe...

7 days 前 | 1

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How to get segmented image using k-means clustering ?
I can't follow your code without putting a lot more time into it. There are not enough comments. It looks like you're trying t...

8 days 前 | 0

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I encountered an 'invalid use of operator' error message.
You forgot quotes. Corrected: load(fullfile('E:\charite\Data\EGCG_Round3\MRE\MouseAtlasReg\ProcessedShort\20241024_sl_MRE_Day1...

8 days 前 | 0

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Get the figures that video created
"i'm trying to upload the video" <== where (what site) are you trying to upload your video file to? Is the destination folder a...

13 days 前 | 0

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Warning: Equation is badly conditioned. Remove repeated data points or try centering and scaling.
What if you just scanned your data with movmean to get the local mean, and movstd to get the local standard deviation, and then ...

14 days 前 | 1

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How to save frames to a video?
Please see my attached demo on how to make a movie from figures/axes/frames. Probably the simplest demos is movie_made_from_sur...

14 days 前 | 0

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已回答
How can I remove dark background in satellite label
Not sure exactly what function you used to put the text label on, like text or insertText, but look at those functions for an op...

14 days 前 | 0

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How to get multiple function generated plots to generate from a single MATLAB script
To get it to plot in a new figure, you need to call the figure() function. Otherwise it just blasts over the old/existing figur...

14 days 前 | 0

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已回答
Color Detection and Tracking Using USB cam
See my attached video tracking demo where I track the movement of a green Sharpie marker.

15 days 前 | 0

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How to calculate spray penetration length and spray cone angle?
It looks pretty easy. The steps would be Threshold the first image and use regionprops to find the centroid of the center spot...

17 days 前 | 2

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Looking accurately for coordinates-based patterns
This seem similar to crystallography. What I'd do is search for "x ray diffraction crystallography pattern analysis" and see wh...

19 days 前 | 0

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Finding the Center of Broken Vase Slices
What I'd do is to call bwboundaries on the binary image to get the coordinates of the perimeter. Do it on the original binary i...

19 days 前 | 0

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Finding the real world (in^2) area of black smears on graph paper.
Here is a crude first cut at it. It's not very robust because you haven't used the suggestions in my other answer to improve th...

21 days 前 | 0

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Finding the real world (in^2) area of black smears on graph paper.
See my Image Segmentation Tutorial in my File Exchange: Image Analyst's File Exchange It's a generic, general purpose demo of ...

21 days 前 | 1

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how to crop the image from the green screen
Try this: % Demo by Image Analyst % Initialization steps: clc; % Clear the command window. close all; % Close all figure...

22 days 前 | 0

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Why isn't the hold on feature working? It only shows my last plot.
How did you get "ans"? ans is a reserved keyword that gets changed very frequently, like when you call a function without accep...

23 days 前 | 0

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How can the objects touching the boundary of the ROI polygon in an image be removed in Matlab?
"define a new image boundary to concide with the boundary of the polygon obtained using roipoly" <== To get a binary image mask ...

23 days 前 | 0

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How to do autocorrelation with a given data
I don't have the Econometric Toolbox so I can't use autocorr but I can use the regular xcorr. Maybe this will help you: t = 3:...

24 days 前 | 0

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