Image Analyst
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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
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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Feeds
Extract Text and Values from String
How much does the string vary? Are all the things at fixed, specific locations? If so just use indexing str = 'AB(16.7)CD[20....
environ 19 heures il y a | 0
Problem with matlab support/sales team- NO RESPONSE
Go here: https://www.mathworks.com/support/contact_us.html?s_tid=hp_ff_s_support Change the country to the one you live in, an...
environ 19 heures il y a | 0
How to make MATLAB read the environment variable JAVA_HOME
Maybe try using setenv to set it up in your startup.m file.
3 jours il y a | 0
Image analysis - Bounding Box converted to Circular Mask
To display circles rather than bounding boxes, you can just ask regionprops for the Centroid and EquivDiameter. Then use viscir...
6 jours il y a | 0
| A accepté
How do I find the corner points of an mask
Depending on the shapes you're dealing with, convhull may work for you.
7 jours il y a | 1
How to skip missing time durations in a time-series heatmap (image based figure)
I don't think putting in nans where you don't want it to plot is "klunky" - we do it all the time. Go ahead and do it if that w...
9 jours il y a | 0
Can Matlab automatically detect a new value in Excel?
How about if you use dir to get the file date/time stamp and then if it's later than the last time you processed it then Stella ...
9 jours il y a | 0
Can Matlab automatically detect a new value in Excel?
If you're using Windows and ActiveX, you can check out the properties and methods here: https://learn.microsoft.com/en-us/dotne...
9 jours il y a | 0
10x10 Matrix
Alternatively (since you already have a solution to your homework problem from the other Answer) you can do m = 10 * rand(10); ...
10 jours il y a | 0
How to eliminate this white haze when taking a photo?
@DGM makes some good suggestions. Glare and haze are caused by excess bright light scattering around your camera's optical syst...
11 jours il y a | 1
How would I use a 2D array based on a topographical map to determine the steepest direction at each point?
Try imgradient or imgradientxy Since this is a homework problem, if you have any questions ask your instructor or read the link...
12 jours il y a | 1
failing to normalize columns of matrix from 0 to 1
Try rescale for ii = 2 : 2 : size(A, 2) A(:,ii) = rescale(A(:,ii), 0, 1); end
12 jours il y a | 0
yticks function gives error with subplot function
Like I and everyone else says, your code runs for us and the error message indicates you have a variable called yticks. Set a b...
14 jours il y a | 0
How to create animation smiling face?
See attached demos and adapt as needed. Also see this tutorial on how to make animated GIFs. https://www.mathworks.com/matlabc...
14 jours il y a | 0
how to load from text file to listbox
You can use readlines to read the lines of the text file and then put them into the listbox. For App Designer, it would be some...
15 jours il y a | 0
How do I start using MATLAB Copilot?
@翼 in the meantime, try doing what you said here: https://www.mathworks.com/matlabcentral/playground?s_tid=gn_mlc_playground
15 jours il y a | 0
Which one is the best?
You can try them all out in the Classification Learner app on the Apps tab of the tool ribbon. You can try them with your actua...
17 jours il y a | 0
Help with getting data from image at equidistant positions from the centre - to include the "off circle corners"
@Jason, ok try this - it may be a little more intuitive: grayImage = imread('cameraman.tif'); [rows, columns, numColorChannels...
17 jours il y a | 0
Help with Matlab code
The colon, :, means "all" so MD2(7,:) = MD2(7,:)+MS(1,:)+MS(15,:); means set all columns in row 7 of MD2 to be what they orig...
17 jours il y a | 0
How to change the legend format to “Descriptive text + icon”
That's because legend() does not have any children, much less of types text and patch: x = 1:10; y1 = x; y2 = x.^2; plot(x, ...
17 jours il y a | 0
Obtain intensity values within the ROIs drawn on image in this script. Then, write and display intensity values within the ROIs on the image.
Since your rectangles are adjacent, you can use blockproc. It's a function meant for exactly this kind of operation. See attac...
17 jours il y a | 0
Help with getting data from image at equidistant positions from the centre - to include the "off circle corners"
See attached demo. Adapt as needed, for example change mean to median.
17 jours il y a | 0
How do I remove the colored area on a part of the map?
The whole image, even the gray stuff and tick mark labels? Or just the colored parts? Try this: % Demo by Image Analyst % In...
18 jours il y a | 0
Converting a image matrix from RGB to XYZ color space
% In range 0-1 srgb=rand(24,3); [xyz2D]=convertsrgb2xyz(srgb) % uint8 variables in range 0-255 srgbUint8 = uint8(255 * rand...
20 jours il y a | 1
Periodic Boundary condition feature in image analysis tools
It can be done but it's a bit tricky. You can call imclearborder and then use find() to find out which blobs have pixels in com...
23 jours il y a | 0
write a program that asks the user for the input of a number and returns the natural logarithm of the number if the number is posative, and displays a error message otherwise
If you have any questions about this homework problem, ask your instructor or read the link below to get started: How do I get ...
24 jours il y a | 1
Remove ignored complex values from a plot
Anything set to nan will not plot so you can set the imaginary locations to nan: imagLocations = (imag(y) ~= 0) % Set those lo...
25 jours il y a | 0
| A accepté
Fit Ellipse to structure in image
See the FAQ: https://matlab.fandom.com/wiki/FAQ#How_can_I_fit_an_ellipse_or_other_shape_to_a_set_of_XY_data? or see the attach...
26 jours il y a | 0
how to display both a text and a userInput on mask using system object?
Maybe try using sprintf with the names of your variables to create a string and then combine into a cell array of strings of dif...
26 jours il y a | 0
