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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Separate Callback Functions in AppDesigner
The callback for a button, and the CloseRequestFunction callback for the figure are two entirely separate functions. For the Qu...
17 hours ago | 0
Problem extracting values from for loop
Index the RMSE variable: for loopIndex = 1 : whatever F = getdatasamples(y_out.clean, [1:567]); A = getdatasamples(y_...
17 hours ago | 0
| accepted
Automatic Image Segmentation of three steel ropes using Image Processing Tools
@Darya Yakovleva, I'm really surprised I did not see your post when you posted it 4 years ago. But anyway, you've chosen wisely...
3 days ago | 0
How do I access an element in an answer array directly?
Evidently you need to do it in two steps. A bonus though is that the two step method is much more readable and understandable. ...
3 days ago | 0
| accepted
I am trying to remove a noise which was generated as a random noise added with multitone cosine signals so that this noise will contain white gaussian noise with multiple
It's not really white (flat spectrum), is it, if it occurs at specific and known frequencies? Why don't you just FFT the signal...
3 days ago | 0
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....
4 days ago | 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...
4 days ago | 0
How to make MATLAB read the environment variable JAVA_HOME
Maybe try using setenv to set it up in your startup.m file.
6 days ago | 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...
10 days ago | 0
| accepted
How do I find the corner points of an mask
Depending on the shapes you're dealing with, convhull may work for you.
10 days ago | 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...
13 days ago | 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 ...
13 days ago | 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...
13 days ago | 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); ...
14 days ago | 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...
15 days ago | 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...
15 days ago | 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
15 days ago | 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...
18 days ago | 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...
18 days ago | 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...
19 days ago | 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
19 days ago | 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...
21 days ago | 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...
21 days ago | 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...
21 days ago | 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, ...
21 days ago | 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...
21 days ago | 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.
21 days ago | 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...
22 days ago | 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...
24 days ago | 1
