已解决

Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

9 years 前

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Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

9 years 前

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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

9 years 前

已解决

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

9 years 前

提问

MATALB error (java.net.SocketTimeoutException ...)
I have been facing this issue a lot lately. When I run some code and leave the MATLAB window open but minimized for half an hour...

9 years 前 | 1 个回答 | 0

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how can i add my result to sheet 2 in my excel sheet
Use the syntax: |xlswrite(filename,A,sheet)|

9 years 前 | 0

提问

Error after computing 3 coefficients of Radial Distortion for stereo Calibration
When I performed stereo calibration by selecting the radio button _3 Coefficients_ for Radial Distortion, I was not able to vie...

9 years 前 | 1 个回答 | 1

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Make all elements of given row numbers equal to NaN.
Given a matrix, if any element has a non-finite value, I want to make all elements of that row equal to NaN. For example: In...

9 years 前 | 1 个回答 | 0

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Specify limits to a plane's dimension, depending on data dimensions, so it exactly overlaps data
I am plotting a plane which should overlap with 3D data available. In certain cases (as shown below), the plane's dimension beco...

9 years 前 | 1 个回答 | 0

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View plane overlapped with point cloud.
Using the function |pcfitplane|, I get an equation of a plane. In this case, it is [-0.097 -0.055 0.993]. How can I view it such...

9 years 前 | 1 个回答 | 1

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Filtering a 3D point cloud
I have attached a 3D point cloud <https://www.dropbox.com/sh/ij5a9ule9nctl3m/AAAib_eKnbx9PKh5yqAsfwvGa?dl=0 here> . You can call...

9 years 前 | 1 个回答 | 1

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doubt regarding bwconncomp example.
This is a small doubt.....I'm stuck in the second example given for |bwconncomp| by Mathworks. This example removes the group ...

9 years 前 | 2 个回答 | 0

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Dot product of matrix with scalar
This is a trivial question. I have a matrix B = [1 1 1; 5 5 5; 9 9 9; 2 2 2; 6 6 6; 10 10 10; 3 3 3; 7 7 7; 11 11 11...

9 years 前 | 1 个回答 | 0

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Aligning 3D stereo co-ordinate system along local vertical and local horizontal
Using stereo vision, I am able to reconstruct the object under inspection. After calibration, I know the co-ordinate system w...

9 years 前 | 1 个回答 | 1

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Sources of error to calculate X, Y Z distances using stereo when disparity map seems alright.
This issue is wrt Image scene reconstruction using Stereo Calibration. I have a good (compared to my earlier pointClouds) recon...

9 years 前 | 1 个回答 | 1

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Interpolating points of a 3D point cloud
I have two questions: 1. I have a 3D point cloud which isn't continuous. There are a few gaps in it. I want to interpolate th...

9 years 前 | 1 个回答 | 0

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Accurate stereo reconstruction of high resolution image
I am doing stereo calibration and scene reconstruction. The disparity map I obtain is much better than what I was initially get...

9 years 前 | 2 个回答 | 0

2

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Calculation of distance (z-axis) to object using CVST
I am facing an issue while using Computer Vision System Toolbox, while calculating the 3D distance to an object from a stereo se...

9 years 前 | 1 个回答 | 0

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Improper Disparity map obtained for stereo scene reconstruction
I have done stereo calibration using the Stereo Camera Calibrator App available in MATLAB R2014b. When I obtain the results o...

10 years 前 | 1 个回答 | 0

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Angle between two best-fit planes
I have a set of points (as in |Points3D.mat| attached here). I find the equation of best fit plane using |affine_fit| by <http:/...

10 years 前 | 1 个回答 | 0

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Function/s equivalent to "bwareaopen" and '''bwconhull' supported for C / C++ code generation
This is with reference to <http://in.mathworks.com/matlabcentral/answers/195933-function-imfindcircles-detects-false-circles cod...

10 years 前 | 0 个回答 | 0

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Function: imfindcircles detects false circles.
I have come across this a few times. The function |imfindcircles| detects false circles (like at the corners shown below) even w...

10 years 前 | 2 个回答 | 0

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Reconstruction of 3D model using three 2D images (looking at the same object in 3 different views)
I came across a requirement to reconstruct 3 dimensional image of an object using three cameras placed around it such that it (e...

10 years 前 | 0 个回答 | 1

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Help regarding Image Segmentation of B/W Image!!
Try using the Morphological operators dilation and erosion.

10 years 前 | 0

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i want to compare two images on the basis of PSNR
This is about <http://in.mathworks.com/help/images/ref/psnr.html PSNR>.

10 years 前 | 0

已回答
i am executing the code given in the matlab documentation and getting the error'Undefined function 'psnr' for input arguments of type 'double'.
As far as I know, only |A| should be of type |double|. Also, check if you have the necessary toolbox and the right version of M...

10 years 前 | 0

已回答
Fit surface to large data set
Hey, You can see <http://in.mathworks.com/matlabcentral/fileexchange/43305-plane-fit Plane fit by Adrien Leygue>. I have used...

10 years 前 | 0

提问

Fill a circle enclosed by it's circumference (of type double) with white.
I want to fill a specific region on an image with white (value 255). The specific region forms a circle. (whose co-ordinates of ...

10 years 前 | 2 个回答 | 0

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SNR for image (No-Reference)
I have a .bin file (a 12 bit image). How should I caculate the SNR of this? I am aware that SNR computation needs one clean and ...

10 years 前 | 2 个回答 | 0

2

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Template matching not necessarily invariant to rotation and scale, but should detect artifacts (of 3X3 pixels or more)
I want to compare a specific pattern (as on _template_ image) and output "yes"/"no" according to the match. I don't require the ...

10 years 前 | 0 个回答 | 0

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