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Calculating the area of the black objects in mm2
You need to know the length of your field of view or of some known thing in the image. See my attached spatial calibration demo...

alrededor de 2 años hace | 0

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Troubles With Image Resizing
Maybe use interpn to resample the array along the "longer pixel" direction to have more samples, like the number of samples it w...

alrededor de 2 años hace | 0

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Detection of storms from precipitation data
If you have the Image Processing Toolbox, this is really trivial because it has function specially built for this kind of thing....

alrededor de 2 años hace | 0

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problem is related to sum of array elements ;my code pass the test individually but combinedly it is showing error
your x is a row vector, not a 2-D matrix. x(1, [1]) is the same as x(1,1) which in this case is the same as x(1) which has a va...

alrededor de 2 años hace | 1

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It is difficult to control the range
See my attached splines demos.

alrededor de 2 años hace | 0

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Display in the command window
You swapped the min and max x constraints. Even when I fix those, the z constraint is not met. I threw in some debug messages ...

alrededor de 2 años hace | 0

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Images are rotated counter clockwise without any reason,
You can try this MATLAB function in the File Exchange to read EXIF tags: https://www.mathworks.com/matlabcentral/fileexchange/4...

alrededor de 2 años hace | 0

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Can I update my Matlab behavior
Sometimes when pasting text in the indentation in the course was a mixture of tabs and spaces so the alignment is off. To fix t...

alrededor de 2 años hace | 0

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Which technique to use for Satellite Imagery?
After you display the image, call impixelinfo imshow(sarImage, []); impixelinfo then mouse around over the displayed image an...

alrededor de 2 años hace | 0

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Using 'tiledlayout', is it possible to incorporate a zoomed-in section of the main plot within the main plot itself for each tile?
You can call axes() and position it and then draw stuff in it. See my attached inset demos.

alrededor de 2 años hace | 1

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How to find pixels aligned along a certain direction on satellite image?
@fransec see my attached demo on fiber orientation. It identifies the local orientation of every pixel in an image. Adapt as n...

alrededor de 2 años hace | 0

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how to remove areas of an image containing a single color?
Try this: % Demo by Image Analyst clc; % Clear the command window. close all; % Close all figures (except those of imtool...

alrededor de 2 años hace | 1

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Images are rotated counter clockwise without any reason,
Many cameras have an "orientation" tag that says what orientation the camera was in when you took the photo. I believe it's eit...

alrededor de 2 años hace | 0

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how to plot a section of a circle, need help with coding the math
See the FAQ: https://matlab.fandom.com/wiki/FAQ#How_do_I_create_an_arc?

alrededor de 2 años hace | 0

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Programmatically Disable a Toolbox
Another way is you could remove the toolbox folder(s) from the path with rmpath

alrededor de 2 años hace | 0

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problem in curve fitting
For what it's worth, see my attached spline demos.

alrededor de 2 años hace | 0

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How to train a Gaussian Process Regression Model to produce a single output based on multiple input?
If you have the Statistics and Machine Learning toolbox, you can use the Regression Learner app on the Apps tab of the tool ribb...

alrededor de 2 años hace | 0

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Matlab Online Figures Won't Close
Worth a try hfig1 = figure('Name', 'Figure 1'); % Do stuff, then close it explicitly close(hFig1); drawnow; % Force immediat...

alrededor de 2 años hace | 0

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How do I make this code a global one, which works for different pictures associated with skin wounds?
Try adding this code at the beginning of your code to ask the user for the image file they want to use: % Have user browse for ...

alrededor de 2 años hace | 1

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Divide all rows of an array by another array
Use the automatic expansion capability: m = [3 -5 6 8; 5 8 10 -3; 6 8 3 4]; columnVector = [1; 2; 3; 4] output = ...

alrededor de 2 años hace | 1

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Why the codes detects the binary image wrong?
That's a demo of mine that was probably not developed for your particular image. You'll have to modify it for your image. I do...

alrededor de 2 años hace | 0

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Getting an error using writebmp (line 14) Expected X to be one of these types: logical, uint8, single, double
Try bin = mat2gray(single(bin)); % Convert from uint32 to something imwrite likes. imwrite(bin, 'Recovered.png');

alrededor de 2 años hace | 0

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How to create line connects between two semi circles?
You can use line to draw a line below the lower semi circle.

alrededor de 2 años hace | 0

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How do I get my old university account as in gmail account?
What is so important about your old account? Why do you need it? Why can't you just from this point on start using your new ac...

alrededor de 2 años hace | 0

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How do i create and image from alpha-numeric characters?
Try https://www.mathworks.com/matlabcentral/fileexchange/4732-ascii-text-image-generator https://www.mathworks.com/matlabcentr...

alrededor de 2 años hace | 0

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How to make data analysis, knowledge graph for unstructured raw mutli types files
You might like to look at this: https://en.wikipedia.org/wiki/Content-based_image_retrieval It mainly talks about images, but ...

alrededor de 2 años hace | 0

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how crop an image automatically without any coordinate?
You can use padarray to add enough rows so that your box can be 512x512. Or you can crop what you have within the existing imag...

alrededor de 2 años hace | 0

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x^2 + y^2 =9
viscircles([0,0], 3); % Plot circle centered at (0,0) and with radius 3 grid on; % Show gridlines axis square % Make sure it's...

alrededor de 2 años hace | 0

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How to do real Time EEG seizure Detection/analysis?
I suggest you first consult with your neurologist, or whatever medical professional hired you to do this, and have them identify...

alrededor de 2 años hace | 1

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How to analyze every single pixels intensity in a video clip?
See my attached demo where I find the mean R, G, and B mean of every frame in a video and plot them. Adapt the region to what y...

alrededor de 2 años hace | 1