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Does the im2gray function give greater 'weight' to red than green and blue?
"I have the following colour coded echo strength image where the red indicates high levels of reflection, then yellow, then gree...

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webcamExampleMATLAB output image has a green mask and cannot detect the blue color
Rather than YUV, is RGB available as a format?

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Parsing text without eval

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How can i find the center of one particle (only blue color) in a image?
See attached demo where I track the motion of a green Sharpie marker.

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i have a syntax error in this expression : Vs+K*(C/(C-(u(1)*u(2)))*u(1))+R*u(1)-A*exp((-B/C)*u(1)*u(2))
Try breaking it up into smaller bite-sized terms, like term1 = whatever term2 = whatever term3 = A * exp(term1) etc. Having...

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how to recognize the face after the detection and croping in the image
No 20 line long program can do face recognition (identifying the name of the person in the image given that the person is a memb...

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How to measure the average thickness at the center region of binary image
Basically you compute the Euclidean Distance transform and multiply it by the skeleton of the blobs. See attached demo:

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License Manager Error -9
Did you try to search the forum? Try clicking the Tag on the right hand side of this page that says "error -9".

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Is MathWorks working on a dark mode for MATLAB similar to what Visual Studio offers?
With release 2023a, dark mode is here. See https://www.mathworks.com/matlabcentral/discussions/highlights/780745-try-dark-mode...

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Creat interactive toolbox for image processing
See my attached contact angle demo. Note in the code where I find the black baseline at the bottom of the droplet. Adapt as ...

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What is an alternative for 'extractBefore' in MATLAB 2015b
Try it this way str = 'Image Analyst, Image Analyst'; indexes = strfind(str, 'Analyst') extractedBeforeString = str(1:indexes...

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aif360 Fairness library in python

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Unrecognized function or variable 'imnoise2'.
Try using the imnoise function of the Image Processing Toolbox instead of imnoise2 (which we don't know what that is).

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How to get pixel value inside a circle
Try this. Adapt it to drawing multiple circles and showing them all should be no problem. % Demo to show how drawcircle can be...

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how can i plot this
This looks like a homework problem. If you have any questions ask your instructor or read the link below to get started: How d...

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How do I code for this random situation?
This looks like a homework problem. If you have any questions ask your instructor or read the link below to get started: How d...

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how to track objects in a live video
snapshot gets a frame from a camera. If you want to read from a video you need to call VideoReader. See some attached demos.

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ismember with regionprops returning all zeros?
You're missing a call to pdist2 (in the Stats toolbox I believe). If you still need help, attach the two segmented (binary) ima...

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Finding average of images using for loop.
@Raushan your code is not very robust at all. I've made many improvements and it's below. I also have a demo to sum images whi...

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Cropping image missing values after imwarp
@Jorge Barrasa try searching for "largest Interior box" https://www.google.com/search?q=largest+interior+box+algorithm&tbm=isch...

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DrawEllipse with no markers on Line
See attached demos where I put ellipses on graphs with no handles. One of them should do what you want.

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Too Many Output Arguments fseminf
Maybe try not defining your anonymous function inside the argument list of the function you're trying to call. So instead of ...

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What is the best way to determine the highest peak of each plant in a cup?
It would be best if you could plant them in a line and view them from the side with a white uniform background. Then it would b...

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Cannot Find MATLAB Runtime R2023a (9.14)
Did you look on the download page? https://www.mathworks.com/products/compiler/matlab-runtime.html

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searching for a line of pixels in an image
Here are some File Exchange submissions and you can see how they did it. Digitize a graph GRABIT - digitize images of graphs ...

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Is there a way to batch find streamline equations from an image?
The blue lines are not polynomials. I'd just deal with them numerically and use spline. Why would you want a polynomial formul...

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How can I get this code to show only the veins in a fundus image of an eye ?
See https://www.mathworks.com/matlabcentral/fileexchange/49172-trainable-cosfire-filters-for-curvilinear-structure-delineation-i...

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Background color correction of a rgb picture
If you want to convert a pseudocolored thermal image to an image where the pixel values are the actual temperatures, see attache...

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how to resolve this input size error
You forgot to attach "D:\Training\T6\netTransfer.mat". Pretrained is a structure that contains all the variables you saved as f...

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How can I start? coding an expect advisor?
To learn fundamental concepts, invest 2 hours of your time here: MATLAB Academy - Free 2 hour training

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