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Counting wheat grains and marking them with image processing
First of all, you need to improve your image capture setup. Why do you have such a horrible, colored, and non-uniform lighting?...

environ 2 ans il y a | 0

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Skeletonisation until edges of a beam
Since the base/box is in a fixed permanent position, you can simply measure that location once and you have that point for all f...

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Mean shift clustering - issue with finding the center of my clusters
How did you read in selected_dataset.rtf? Readmatrix() does not like that extension. I don't think dbscan should take a long t...

environ 2 ans il y a | 0

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extracting values from an image with color legend
See my thermal image demo in my File Exchange. I do essentially this but for a thermal image with a colorbar. Image Analyst's ...

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How can I make the layout in the attached image with tiledlayout
If you understand how subplots work, it's easy. The bottom and right plots just use a 2,2 layout while the upper left two use a...

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Extract numeric values ​​from a colormap
You need to read that colorbar part of the image and then divide by 255. colorsInBar = rgbImage(row1:row2, col1:col2, :); [r, ...

environ 2 ans il y a | 0

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What are the possible reasons for data jumps in the plot?
I don't know where those equations come from. Is it some kind of chaos theory? Anyway, to plot in green like you asked, you ne...

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How to wrote code for Ramp Filter and show the firgure?
You can use linspace to create the filter. Like numPoints = 101; % Whatever bothRamps = zeros(1, numPoints); % Preallocate %...

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calculate the area of the black colored objectes in a image
See my Image Segmentation Tutorial in my File Exchange: Image Analyst's File Exchange It's a generic, general purpose demo of ...

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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...

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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...

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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....

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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...

environ 2 ans il y a | 1

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

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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 ...

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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...

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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...

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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...

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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.

environ 2 ans il y a | 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...

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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...

environ 2 ans il y a | 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...

environ 2 ans il y a | 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?

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

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

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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...

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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...

environ 2 ans il y a | 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 ...

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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 = ...

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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...

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