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Preetham Manjunatha


University of Southern California

Last seen: Today Active since 2014

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Submitted


Panorama image cropper
Crops a fully stitched panorama with black/white background.

11 días ago | 1 download |

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Question


Common substring index from two string arrays
I have two string arrays a and b and I need to find the index matching the substring numbers (within string arrays). For example...

alrededor de 1 mes ago | 1 answer | 0

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answer

Submitted


3D space tiling (partition/divide the 3D space w/wo overlap)
Divides the 3D space with or without overlaps. Tested on 3D point clouds.

3 meses ago | 2 downloads |

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Submitted


Custom colormap
Creates a custom color map given the RGB triplet array.

3 meses ago | 1 download |

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Acceleration to velocity and displacement using DSP filters
Filters and converts the acceleration data to velocities and displacements using the signal processing algorithms.

4 meses ago | 9 downloads |

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Curvature measure and visualization
Measures the shape properties of the object boundaries and displays the curvature.

4 meses ago | 13 downloads |

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Submitted


Probability density functions distance and similarity
Measures the distances and similarities between two probability density functions of signals.

4 meses ago | 2 downloads |

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Image to cylindrical and spherical projection/warping
Cylindrical and spherical coordinates projection

4 meses ago | 2 downloads |

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Submitted


Shape curvature histogram
Feature vector of the curvature histogram of the shapes.

4 meses ago | 3 downloads |

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Answered
How to calculate the curvature of a boundaries in binary images?
Here this function measures the curvature and other shape properties. In addition, it displays the curvature. Here is the T-...

4 meses ago | 1

Answered
How to measure the curvature of object boundary?
Here this function measures the curvature and other shape properties. In addition, it displays the curvature.

4 meses ago | 0

Question


Memory problem when accessing and copying the 3D array elements by subscripts
I am trying to access/copy values from an image 3D array to another 3D array using the subcripts (rows and columns). I am trying...

4 meses ago | 1 answer | 0

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answer

Question


Cylindrical projection from image normal coordinates
I am trying to project normal image coordinates to cylindrical projection using the MATLAB's imwrap function. But the output...

4 meses ago | 0 answers | 0

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answers

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How to use the MATLAB Computer Vision toolbox's bundle adjustment for automatic panoramic image Stitching?
I am trying to implement automatic panoramic image stitching as in the Panorama. I have obtained the connected components of the...

4 meses ago | 0 answers | 0

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answers

Answered
How Do I Move a Set of (x,y,z) Points so they Align with the X-Y Plane?
Fit a oriented bounding box and obtain the orientation of that bounding box and invert the rotation matrix of the Euler angles. ...

5 meses ago | 0

Answered
how to fit a plane to my point cloud data and rotate it so that the plane is parallel to the x-y plane.
Fit a oriented bounding box and obtain the orientation of that bounding box and invert the rotation matrix of the Euler angles. ...

5 meses ago | 0

Question


How to linearize the nested parfor loop?
I have two variables i,j, where j index start depends on i index. n = 3; for i = 1:n for j = i+1:n % Feature mat...

5 meses ago | 1 answer | 0

1

answer

Question


Find unique images from a folder
I have a folder full of images of video frame sequences of same class of varying sizes of frame number extracted from a large vi...

10 meses ago | 1 answer | 0

1

answer

Question


Machine learning model (neural network or SVM) for unequal feature matrices size
I have feature matrices obtained from visual bags of words model for various dictionary sizes. Example, Nx5, Nx10, …., Nx15000. ...

10 meses ago | 0 answers | 0

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answers

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How to convert MATLAB binary feature matrix to decimal?
I have binary feature matrices from BRISK, FREAK and ORB descriptors with 512 number of bits. I tried to use: d = bi2de(featu...

12 meses ago | 1 answer | 0

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answer

Question


Bar3 plot increase bar thickness
I am trying to plot the stacked bar3 plot. How to increases the thickness of the bars? All the bars look flat. I need something ...

más de 1 año ago | 1 answer | 0

1

answer

Question


MATLAB parfor index exceeds the number of array elements
Why MATLAB throws an error even if it shouldn't go to the first case of the switch statement? Below is the minimal example: myc...

más de 1 año ago | 1 answer | 0

1

answer

Question


GPU-based anisotropic filtering of grayscale images
There are quite a number of contribution on sequential anisotropic diffusion filtering. Are there any GPU-based parallel anistro...

más de 1 año ago | 1 answer | 0

1

answer

Question


MATLAB sgtitle overlapping with the title of the subplots
When I use the subplots with group title (sgtitle), the title of subplots on top are overlapping with the group title. Does anyo...

casi 2 años ago | 1 answer | 0

1

answer

Question


How to set point cloud transparency?
Suppose I have aligned two point clouds, how can I set transparencies for each point clouds? I tried with the below lines: src_...

alrededor de 2 años ago | 1 answer | 0

1

answer

Question


Matlab figure(s) suppression not working
Hello: I have some issue suppressing the figure(s) in Matlab. I referred to these solutions <https://www.mathworks.com/matlab...

más de 3 años ago | 2 answers | 0

2

answers

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Overlay imagesc on binary image
Hi Matlab users: I am trying to overlay an imagesc image on top of a binary image. I searched for it online, but no luck. Bel...

más de 3 años ago | 0 answers | 0

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answers

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Neural network for bags-of-visual-words giving a pretty bad training/testing results.
Dear All: I created a feature matrix using (encode, bagOfFeatures functions) visual-bags-of-words using computer vision toolb...

alrededor de 4 años ago | 0 answers | 0

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Visual bag-off-features evalute vs. fitcecoc classification results are very different
Dear All: I have few questions regarding vision toolbox's visual bags-of-features class. Firstly, I have a feature matrix cre...

alrededor de 4 años ago | 0 answers | 0

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answers

Question


Issue with getframe and getimage commands while saving the image (image size mismatch).
Hello: I have an issue while using getimage() command. I am trying to use a figure, first with imshow to initialize a color ima...

más de 4 años ago | 1 answer | 0

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answer

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