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Performing convolution - 3 signals are convolving with three corresponding signal ?
The result of a normal, full convolution is the sum of the extents of the two waveforms. You can automatically crop to the leng...

2 Monate vor | 0

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Index in position 2 exceeds array bounds (must not exceed 175).
Why are you taking columns 1 to 350 exactly? What if it has more or less than 350 columns? Your code is not very robust in tha...

2 Monate vor | 1

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How to transfer color and texture of an image to another image?
The best paper on gamut transfer I have see is this one: http://www.eyemaginary.com/Portfolio/ColorHistogramWarp.html Sorry,...

2 Monate vor | 0

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How to enable Nearest Neighbor Classifier
I don't see how your code is doing any KNN classification. Where is the call to knnsearch? Are you sure you have training data...

2 Monate vor | 0

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Image Denoising of SEM Image
I'm going to assume you have a binary image that you just pseudocolored to be purple and yellow. (Sorry I don't have time to un...

2 Monate vor | 0

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I do not know how to make this work??

2 Monate vor | 0

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Segmentation of a tumor in xray
See my attached demo where I do essentially the same thing. One way to get rid of the skull is to call bwlabel and then use ism...

2 Monate vor | 0

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Image segmentation for transparent objects in a image
If they're truly all the same color, then you can use the Color Thresholder on the Apps tab of the tool ribbon.

2 Monate vor | 0

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How can I calculate the size of an object from a set of photos with no reference point?
If you know the total length of some thing in the image, then you can compute the number of cm per pixel and then you can measur...

2 Monate vor | 0

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I want to find the centroid at a specific image
Your segmentation is all messed up. I probably could have fixed it for you if you had attached the original RGB image, but sinc...

2 Monate vor | 1

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import txt file in matlab
It looks like just a simple matrix of numbers. Try readmatrix d = readmatrix(Ftable)

2 Monate vor | 0

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Highlighted

Ask Me Anything about image analysis or the Mathworks community
Hello, everyone! I’m Mark Hayworth, but you might know me better in the community as Image Analyst. I've been using MATLAB sinc...

2 Monate vor | 8

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how to skip lines that start with a certain character while reading a text file
Try this: % Open the file for reading in text mode. fileID = fopen(fullFileName, 'rt'); % Read the first line of the file. t...

2 Monate vor | 0

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Image Representation conversion to functional array
I'm not sure what you're starting with and what you want. Are you starting with a PNG image file and you want the coordinates o...

2 Monate vor | 0

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Converting Colour RGB into a string with padding and gaps
Use sprintf to make up a custom string with the info you want, then use text to place that string somewhere on your GUI.

2 Monate vor | 0

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how to skip lines that start with a certain character while reading a text file
Try readlines to get each line in a cell array. Then loop over all lines skipping the ones that start with #: fprintf('Beginni...

2 Monate vor | 0

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Use adjusted with imcontrast tool image
Using the option "Save as" under the File menu in the figure will not save the full sized image. It basically saves a screensho...

2 Monate vor | 0

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Tracking motion of particles: using edge detection and blob analysis?
The Computer VIsion Toolbox has some tracking functionality, though I haven't used it.

2 Monate vor | 0

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I need help combining two sine waves
How about using cos() instead of sin() and adjusting your ending time: f=1000; n=10; T=1/f; t=(0:T/100:n*T - T/2); s = cos(...

2 Monate vor | 0

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make vectors same length using min function
How about x = [2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016]; y = [0, 0.05, 0.1, 0.15, 0.2]; a = [2...

2 Monate vor | 0

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Find index of a nearest value
Another solution x = [1 2 3 4 5 6 11 15 21 51 52 54 100 101 151 201 251 301 401]; targetValue = 10; [~, index] = min(abs(x - ...

2 Monate vor | 1

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How to detect right triangles from an image and find the three side lengths of each triangle？
See my Image Segmentation Tutorial in my File Exchange: Image Analyst's File Exchange It's a generic, general purpose demo of ...

2 Monate vor | 0

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warning in serial properties
If you look in the help, it will tell you. Use serialport instead. I figure you can figure out how to change your code as well...

2 Monate vor | 0

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Align image to 3d point cloud
You'd have to somehow project your 3-D point cloud onto a 2-D plane so it can be compared to your 3-D image. But then some of t...

2 Monate vor | 0

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change the color of curve from blue to any color and make it bold
You can specify the color as a 3 element vector with values between 0 and 1, or use one of the built in colors like 'r': y = ra...

2 Monate vor | 1

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what toolbox to include for regression
For these few data points, and for a case like this where the best fit might simply be a line, you can use the build-in polyfit ...

3 Monate vor | 1

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MATLAB editor configuration text extremely small
What is the "find bar"? Some of the fonts might still be controlled by the operating system so if you can't change a font siz...

3 Monate vor | 0

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Why does my matlab code cannot detect the number of periods in a specific time range
Is locs_gelb the yellow signal? It looks like you've already determined how many cracks you have and your loop simply inspects ...

3 Monate vor | 0

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I have the wrong code. How should I modify it to accomplish the goal?
That should be right, but delete lines 4-6. They should not be there. You pass in the base and height with your test function,...

3 Monate vor | 0

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How to remove noise of low frequency signals
One way is use envelope, envspectrum, or audioEnvelope. Once you have the envelope, just subtract the lower curve of the envelo...

3 Monate vor | 0