## [Solved] How can I detect the dimensions of an object under an angle in this picture in MATLAB? [closed]

Consider this as a beginner’s tutorial to Matlab image processing. Read the documentation of the commands used and try and understand what they are doing and why. 1. Read the image Use imread to read the image into a 3D matrix. For convenience, we convert it to double in the range [0..1] using im2double: >> … Read more

## [Solved] How can I detect the dimensions of an object under an angle in this picture in MATLAB? [closed]

Introduction This question is about how to detect the dimensions of an object under an angle in a picture using MATLAB. MATLAB is a powerful tool for image processing and can be used to detect the dimensions of an object in a picture. In this article, we will discuss how to use MATLAB to detect … Read more

## [Solved] How I can insert data to table in MATLAB? [closed]

I guess an first order interpolation is what you want. How to handle the funktion interp1 is explained in the Matlab Manual. 1 solved How I can insert data to table in MATLAB? [closed]

## [Solved] Getting one section of a larger matrix matlab

As schorsch said in comments, simply do: A=M(160:430,108:305) to get values then modify your sample ( B=transform(A) ) and put B in the same way you got A out M(160:430,108:305)=B Remember that : basically means everything in between I agree with Mark though, the documentation for MATLAB is outstanding and one of MATLAB’s best features … Read more

## [Solved] How to generate samples from a random number generator in matlab? [closed]

The simplest way is just to call it in a loop: x = zeros(1,100); for i = 1:100 x(i) = my_func(); end And then: hist(x) solved How to generate samples from a random number generator in matlab? [closed]

## [Solved] I want to write this cod e in android it is in MATLAB,

You can use java libraries for linear algebra and matrices algebra for that. Or if you are trying to write greyscale a bitmap search for a java library that does that. Android most outer layer runs on Java language mostly 2 solved I want to write this cod e in android it is in MATLAB,

## [Solved] Matlab rank function bug [closed]

rank in matlab 2014a uses svd, not svds. If your local file uses svds the installation is corrupted. I recommend to reinstall Matlab and set write restrictions to the toolbox folder afterwards to prevent such problems happen again. solved Matlab rank function bug [closed]

## [Solved] Nonlinear arbitrary-directional broadband piezoelectric vibration energy harvester using 3-DOF parallel mechanism by matlab [closed]

Nonlinear arbitrary-directional broadband piezoelectric vibration energy harvester using 3-DOF parallel mechanism by matlab [closed] solved Nonlinear arbitrary-directional broadband piezoelectric vibration energy harvester using 3-DOF parallel mechanism by matlab [closed]

## [Solved] Returning specific regions [closed]

You can group the results of regionprops into a vector and use it for indexing: rg = regionprops( L, ‘Area’ ); allArea = [rg(:).Area]; % grouping all area values into a single vecotr labels = find( allArea >= 300 & allArea < 500); % select relevant regions solved Returning specific regions [closed]

## [Solved] Generate Gaussian and Uniform Random Variable [closed]

Generally I’m not in the habit of answering questions that clearly prove you haven’t tried anything yourself. Today is no different, but I’ll do the following: I’m gonna provide you with a little code, that contains a few intentional errors. It’s up to you to figure out what the code does, and where the problems … Read more

## [Solved] What is the best way of learning Digital Image processing? [closed]

The only problem with MATLAB, for a beginner, is that it is really expensive. Some universities buy it without the Image Processing Toolbox, in which case it is not so useful. Octave is well supported by the open source community, that is another alternative “Processing” is a language that is easy to learn and powerful. … Read more

## [Solved] How can we evaluate a Gaussian in an intensity of an Image? [closed]

Not quite. Basically you are manually coding formula (9) from here. Then: … exponent = ((x-rho).^2 + (y-theta).^2)./(2*sigma^2); % sigma is also squared val = exp(-exponent); % superfluous bracket removed val = val./(2*pi*sigma^2); % you also forgot the denominator part end Of course you could write the whole thing a bit more efficient. But unless … Read more

## [Solved] Matlab, get the peaks in a vector, this does not work: max_locations = find(A==max(A)) [duplicate]

Because the values at other locations are not maximum: 162 instead of 163. >> L([31 57 83 109 135]) ans = 163 162 162 162 162 If you want to find some extreme pickes you can try; >> pick_location = find(L>160) pick_location = 31 57 83 109 135 136 To actually find peaks try PEAKFINDER … Read more

## [Solved] Why is the output of `conv2()` is divided by `sz^2`?

Note that conv2(double(im(:,:,q)),mask,’same’)./sz^2 is the same as conv2(double(im(:,:,q)),mask./sz^2,’same’) This is because the convolution and the multiplication commute. Thus, the convolution operation computes a local mean. Without the division, it would be a local sum. 0 solved Why is the output of `conv2()` is divided by `sz^2`?

## [Solved] Pyramidal Histogram Of Oriented Gradients – Trilinear interpolation

Short answer is: you can’t apply Trilinear Inerpolation. Let’s start with 2x2x2 blocks. Each block, is represented by it’s centre pixel ( 1,2,3,4 in ugly yellow on my sketch). Each pixel is located at the corner of a cell. A pixel (the red dot), will be shared by up to 4 blocks that overlap. With … Read more