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Preetham Manjunatha


University of Southern California

Last seen: Today Active since 2014

Enthusiastic and versatile Research Associate with a Ph.D. in Applied Computer Vision and Machine Learning.

Programming Languages:
Python, C++, C, MATLAB
Spoken Languages:
English, Hindi
Professional Interests:
Machine Learning and Deep Learning, Image Processing and Computer Vision

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  • 3 Month Streak
  • Personal Best Downloads Level 1
  • GitHub Submissions Level 3
  • Thankful Level 3
  • Revival Level 1
  • First Answer
  • First Submission
  • First Review

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Submitted


Weighted adjacency matrix of an image using energy function
Creates a weighted adjacency matrix from an energy matrix for an image. Average, similarity, and dissimilarity between the nodes...

circa un mese ago | 3 downloads |

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Multiclass metrics of a confusion matrix
Given the confusion matrix finds the two or multiclass metrics such as precision, recall, F1-score, and others.

circa un mese ago | 28 downloads |

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Submitted


Random graphs and trees
Creates Erdos-Renyi, geometric random graphs, and rapidly-exploring random trees (RRT and RRT*).

circa 2 mesi ago | 4 downloads |

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Submitted


Voronoi bounded rectangular or square limits
Provides a bounded Voronoi Diagram with vertices similar to MATLAB [vx,vy] = voronoi(x,y). In other words, prunes the edges that...

2 mesi ago | 13 downloads |

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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.

4 mesi ago | 3 downloads |

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Submitted


Automatic panoramic image stitcher (AutoPanoStitch)
Automatic Panorama Stitching software in MATLAB. Supports spherical, cylindrical, and planar projections and recognizes multiple...

4 mesi ago | 14 downloads |

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Submitted


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

4 mesi ago | 2 downloads |

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Question


How to convert row-major linear indices to column-major indices?
I have a row-major linear indices [1,8, 14, 9, 4, 11, 18] from a matrix 3 x 6 (row x column). How to convert this to column-majo...

5 mesi ago | 2 answers | 0

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answers

Answered
Matlab R2020b freezes when closing figure (Intel macOS Big Sur)
MATLAB R2022a still freezes when the Figure window is closed on macOS 12.3.

5 mesi ago | 0

Submitted


Line 2 Line intersection point (two line segments)
A fast two-line intersection point-based in parametric space. Finds the intersection point between two lines if it exists.

6 mesi ago | 25 downloads |

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Answered
How can I plot a voronoi diagram with a limited area?
If the Voronoi Diagram bounded region is rectangle or square, here is the link function to clip the extending edges of the Voron...

6 mesi ago | 0

Answered
How do I find the intersection point of two lines in MATLAB 6.5 (R13)?
Here is the link to find the intersection point of two line segments/lines. A fast two line intersection point finder based on t...

6 mesi ago | 0

Answered
How to plot 2 lines and find the coordinates of their intersection?
Here is the link to find the intersection point of two line segments/lines. A fast two line intersection point finder based on t...

6 mesi ago | 0

Answered
How to find the point of intersection of two lines in matlab ?
Here is the link to find the intersection point of two line segments/lines. A fast two line intersection point finder based on t...

6 mesi ago | 0

Answered
Finding intersection point of the lines
Here is the link to find the intersection point of two line segments/lines. A fast two line intersection point finder based on t...

6 mesi ago | 0

Answered
Voronoi boundaries
If the Voronoi Diagram bounded region is rectangle or square, here is the link function to clip the extending edges of the Voron...

6 mesi ago | 0

Answered
Voronoi Diagram Boundaries with a given width
If I understand your problem correctly, are you looking to bound the Voronoi region? If so, here is the link function to clip th...

6 mesi ago | 0

Answered
voronoi within a pre-defined area
Here is the link function to clip the extending edges of the Voronoi Diagram for rectangular or square region. Rigorously tested...

6 mesi ago | 1

Answered
Vertices of polygons in bounded voronoi diagram
Here is the link function to clip the extending edges of the Voronoi Diagram for rectangular or square region. Rigorously tested...

6 mesi ago | 0

Submitted


Cracks splitter/cropper/augment on a large dataset
To augment the cracks with similar geometric properties, cracks can be split into tile images on a large dataset.

7 mesi ago | 3 downloads |

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Submitted


Cracks splitter/cropper/augment on a single image
Augments the cracks with similar geometric properties, cracks can be split into tile images.

7 mesi ago | 2 downloads |

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Answered
Matlab R2020b freezes when closing figure (Intel macOS Big Sur)
Same problem macOS Monterey v12.1. MacBook Pro (15-inch, 2018), Processor: 2.9 GHz 6-Core Intel Core i9 and Memory: 32 GB 2400 M...

7 mesi ago | 0

Submitted


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

9 mesi ago | 2 downloads |

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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...

9 mesi ago | 1 answer | 0

1

answer

Submitted


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

12 mesi ago | 4 downloads |

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Submitted


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

12 mesi ago | 6 downloads |

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Submitted


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

12 mesi 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.

circa un anno ago | 4 downloads |

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Submitted


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

circa un anno ago | 2 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-...

circa un anno ago | 1

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