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How to focus my image segmentation algorithm
There is a lot of variation in your image capture setup. You can make vast improvements in it, including Lay the panels on bla...

3 months ago | 0

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How to focus my image segmentation algorithm
I'm not sure what part of the mask you want to be extracted by cropping, but you can use imcrop or indexing croppedImage = orig...

3 months ago | 0

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How do I get the outer contour from a line in an image?
I don't know what "the contour function of the line" is. I'd use the Color Thresholder app on the apps tab of the tool ribbon t...

3 months ago | 0

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Making y-axis positive in both directions
Well I think that would be confusing and deceptive to the reader. But anyway, do you want just the exponent to be positive? Yo...

3 months ago | 0

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Determine the coordinates of the nodes forming the outermost circle
Can you get the coordinates as a list of (x,y) locations? If so, get the convex hull with convexHull or convhull

3 months ago | 1

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How much Mac memory can Matlab utilize?
Try this: >> memory in the command window.

3 months ago | 0

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the size of picture show three data?
The two others said why the size is 3 times the size of the lateral dimensions (because you have 3 color channels/planes). Don'...

3 months ago | 0

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An error that repeats in my Matlab code-image classification
What tf are you using? When I look in the help it lookos like there are lots of tf functions. It looks like you're trying to c...

3 months ago | 0

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Ho to find the area of some patterns in an image
Make it easy for us to help you : attach your image or screenshot as a standard PNG format image so that we can see it right her...

3 months ago | 0

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Size of an image as a single value
"I actually meant the physical size when displyed though." That depends on the figure size. You can resize the figure to any si...

3 months ago | 1

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Answered
How CT projection image and intensity plot are related?
@Anand Ra in t = -1*(1/µ)*log(I./Io) note that I is a 2-D array, so the log is also a 2-D array, and thus t is also a 2-D ar...

3 months ago | 1

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How do I calculate PNSR of an Image
There is a psnr function in the Image Processing Toolbox. help psnr

3 months ago | 0

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Where can I find video files with the avi extension ?
To find all files under a top level folder, you can do it like this: % Specify the top level folder where the *.avi files are r...

3 months ago | 0

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Best way to calculate color difference score
That's basically correct. What could possibly be improved is the image capture part, but you don't say anything about that. Ar...

3 months ago | 0

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Histogram Equalization-Contrast Adjustment
Don't use histogram equalization. It's a common beginner misconception that it helps. It is not needed. First of all, it usua...

3 months ago | 0

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How to use "imregionalmax" without using for loop
peaks = sort(AF_Nuni(i,imregionalmax(squeeze(AF_Nuni(i,:,:))))); The way you're indexing could be slowing you down. Normally y...

3 months ago | 1

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I'm dealing with Speech compression using Linear Predictive Coding. When I run the code I get a few errors.
The error is clear: the file does not exist. Check the spelling and location. Perhaps add a file extension if the file has one...

3 months ago | 1

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Read Excel and write output
What is p1, p2, and p3? You might try R = xlsread('Book1.xlsx') %% Excel sheet (Book1.xlsx) is in 'D' drive A = R(:, 1); B =...

3 months ago | 0

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Matlab GUI to select and plot data from csv file.
Use the current figure, gcf: figPosition = get(gcf, 'Position'); Also see MAGIC - MATLAB Generic Imaging Component that has a...

3 months ago | 0

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Mac Warning: Name is nonexistent or not a directory
Does the mac care about the direction of the slash in the path (Windows doesn't)? Try using all forward slashes. Try leaving o...

3 months ago | 1

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xline - draw a partial line
You can use line or plot instead of xline

3 months ago | 0

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I have basic understanding of MATLAB, how do i move forward
Best way(s) to master MATLAB? - MATLAB Answers - MATLAB Central

3 months ago | 0

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How can I remove the central pattern (near 0 hz value) correctly?
It looks like it's deleting the spectrum along the axes. If you just want the central spot, then just erase that: [rows, colum...

3 months ago | 0

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Find brightest frame in video file
See my attached demo that runs through a video getting the mean R, G, and B, and gray scale brightness. Once you've run though ...

3 months ago | 1

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Answered
PROBLEMS WITH SAVING PATHFOLDERS
I noticed that you included the drive letter in one path but not the others. Try putting the drive letter in all paths. What o...

3 months ago | 0

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create animation from several figures
See my attached movie demos, especially movie_made_from_plot and movie_made_from_surf.m.

3 months ago | 1

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Object depth tracking with magnetometer
Since you don't know how the Z values change, you'll have to model that. So I'd map out a 3 by 3 (or more) grid that covers the...

3 months ago | 0

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PROBLEMS WITH SAVING PATHFOLDERS
I'd say that you don't have the folderpath on your computer folderPath = '\path\folder\test'; or else the images are not in th...

3 months ago | 0

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How to completely extract the green pixels from this image?
Try the Color Thresholder on the Apps tab of the tool ribbon. Use HSV color space, then click the Export function button on the...

3 months ago | 0

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Do I have to upgrade to Matlab 2020?
I'd say sure, but upgrade to R2023b, the latest, instead of R2020a. Can't hurt. Otherwise call delete(filename) before calling...

3 months ago | 0