Frederik Kratzert

University of Natural Resources and Life Sciences, Vienna

Actif depuis 2014

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Professional Interests: Video/Image Processing

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A soumis

FD = gfd(bw,m,n) - Implementation of the Generic Fourier Descriptors
Calculates the Generic Fourier Descriptors following the Publication of D. Zhang & G. Lu (2002)

presque 10 ans il y a | 1 téléchargement |

5.0 / 5

A soumis

centerobject(bw)
a small function that centers an object with its centroid to the center of the image

presque 11 ans il y a | 1 téléchargement |

5.0 / 5

Question

Why does translation with imwarp + affine2d-object enlarges the object?
Hey everybody, i searched the forum for an answer but couldnt find one, so i hope oyu can help me here. I have some troub...

presque 11 ans il y a | 2 réponses | 0

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A résolu

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...

plus de 11 ans il y a

A soumis

multihistfit(data,nbins,varargin)
Fit multiple distributions in one figure to a dataset

plus de 11 ans il y a | 1 téléchargement |

5.0 / 5

A résolu

Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

presque 12 ans il y a

A résolu

Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

presque 12 ans il y a

A résolu

Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

presque 12 ans il y a

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Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

presque 12 ans il y a

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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

presque 12 ans il y a

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Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

presque 12 ans il y a

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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...

presque 12 ans il y a

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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 ...

presque 12 ans il y a

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Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

presque 12 ans il y a

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Is my wife right?
Regardless of input, output the string 'yes'.

presque 12 ans il y a

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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

presque 12 ans il y a

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

presque 12 ans il y a

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

presque 12 ans il y a

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Add two numbers
Given a and b, return the sum a+b in c.

presque 12 ans il y a

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

presque 12 ans il y a

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Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

presque 12 ans il y a

A résolu

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:...

presque 12 ans il y a

Réponse apportée
Different number of Frames, using vision.VideoFileReader and VideoReader()
Me again, so i noticed, that i forgot to look on the 116 frames obtained by VideoReader() if there are also copies inside, and ...

presque 12 ans il y a | 2

Question

Different number of Frames, using vision.VideoFileReader and VideoReader()
Hey everybody, i am currently working on a fish detection and classification software and encountered following problem: If...

presque 12 ans il y a | 1 réponse | 1

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réponse