Question

How to skip file in imageDatastore.ReadFcn?

I have folder with dicom files (.dcm). Some of them are images (with size MxNx3), some of them are videos (MxNx3xnumOfFrames). I...

3 months ago | 1 answer | 0

Solved

middleAsColumn: Return all but first and last element as a column vector

Given input A, return all but the first and last elements, arranged as a column vector. (I.e., all dimensions after the first s...

2 years ago

Solved

Get the elements of diagonal and antidiagonal for any m-by-n matrix

In the problem <http://www.mathworks.com/matlabcentral/cody/problems/858-permute-diagonal-and-antidiagonal Problem 858. Permute ...

2 years ago

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intersection of matrices

Given two matrices filled with ones and zeros, determine if they share a common row, column entry. These matrices are of identi...

2 years ago

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We love vectorized solutions. Problem 1 : remove the row average.

Given a 2-d matrix, remove the row average from each row. Your solution MUST be vectorized. The solution will be tested for ac...

2 years ago

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Find the peak 3n+1 sequence value

A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

2 years ago

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Alphabetize by last name

Given a list of names in a cell array, sort the list by the last name. So if list = {'Barney Google','Snuffy Smith','Dagwood ...

2 years ago

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Read a column of numbers and interpolate missing data

Given an input cell array of strings s, pick out the second column and turn it into a row vector of data. Missing data will be i...

2 years ago

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Interpolator

You have a two vectors, a and b. They are monotonic and the same length. Given a value, va, where va is between a(1) and a(end...

2 years ago

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"Low : High - Low : High - Turn around " -- Create a subindices vector

Let two vectors *lo* and *hi* be given. The job is to create a index vector like so idx = [lo(1):hi(1) lo(2):hi(2) ...]...

2 years ago

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Longest run of consecutive numbers

Given a vector a, find the number(s) that is/are repeated consecutively most often. For example, if you have a = [1 2 2 2 1 ...

2 years ago

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Return unique values without sorting

If the input vector A is [42 1 1], the output value B must be the unique values [42 1] The *values of B are in the s...

2 years ago

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Find the largest value in the 3D matrix

Given a 3D matrix A, find the largest value. Example >> A = 1:9; >> A = reshape(A,[3 1 3]); >> islargest(A) a...

2 years ago

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Specific Element Count

Given a vector _v_ and a element _e_, return the number of occurrences of _e_ in _v_. Note: NaNs are equal and there may be n...

2 years ago

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Create logical matrix with a specific row and column sums

Given two numbers *|n|* and *|s|*, build an |n-by-n| logical matrix (of only zeros and ones), such that both the row sums and th...

2 years ago

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Replicate elements in vectors

Replicate each element of a row vector (with NaN) a constant number of times. Examples n=2, A=[1 2 3] -> [1 1 2 2 3 3] ...

2 years ago

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Generate N equally spaced intervals between -L and L

Given N and L, return a list of numbers (in ascending order) that divides the interval [-L L] into N equal-length segments. F...

2 years ago

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Piecewise linear interpolation

Given an Mx2 vector and a row of M-1 integers, output a two column vector that linearly interpolates Y times between each succes...

2 years ago

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First non-zero element in each column

For a given matrix, calculate the index of the first non-zero element in each column. Assuming a column with all elements zero ...

2 years ago

Solved

Check if number exists in vector

Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

2 years ago

Answered

Multiple objects/labels detection NOT JUST ONE (alexnet)

Maybe you are looking for object detection ?

Multiple objects/labels detection NOT JUST ONE (alexnet)

Maybe you are looking for object detection ?

2 years ago | 0

Question

[bug] importONNXNetwork fails to open file if path depends on "Add to Path" folder

I added my folder "nnets" to path (from context menu) and tryed to import onnx network with: %not working net = importONNXNetw...

2 years ago | 1 answer | 0

Answered

How can I play a range of frames from a video file?

https://www.mathworks.com/help/matlab/ref/videoreader.readframe.html Section Read Video Starting at Specific Time

How can I play a range of frames from a video file?

https://www.mathworks.com/help/matlab/ref/videoreader.readframe.html Section Read Video Starting at Specific Time

2 years ago | 0

Question

[mistake in docs] Deep learning trainingOptions.ValidationPatience is not Inf by default

<https://www.mathworks.com/help/deeplearning/ref/trainingoptions.html Documentation> : 'ValidationPatience' — Patience of v...

2 years ago | 2 answers | 0

Answered

How can I create 3D pixels image

imageSizeX = 100; imageSizeY = 100; imageSizeZ = 100; [columnsInImage, rowsInImage,zInImage] =... mesh...

How can I create 3D pixels image

imageSizeX = 100; imageSizeY = 100; imageSizeZ = 100; [columnsInImage, rowsInImage,zInImage] =... mesh...

2 years ago | 1

Answered

Perform a program that graphs the letter "x inside a box" of size n

box_size = 100; box = zeros(box_size); v = 1:box_size+1; box(1:box_size+1:end) =1; box(box_size:box_size-1:end) =1; ...

Perform a program that graphs the letter "x inside a box" of size n

box_size = 100; box = zeros(box_size); v = 1:box_size+1; box(1:box_size+1:end) =1; box(box_size:box_size-1:end) =1; ...

2 years ago | 0

Answered

Save Image with drawn shape not with original resolution

Save image with <https://www.mathworks.com/help/matlab/ref/imwrite.html imwrite> function!

Save Image with drawn shape not with original resolution

Save image with <https://www.mathworks.com/help/matlab/ref/imwrite.html imwrite> function!

2 years ago | 0

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Question

Classification of AlexNet deep dreams is always wrong (always nematode)

I followed up the <https://www.mathworks.com/help/deeplearning/examples/deep-dream-images-using-alexnet.html tutorial> about Ale...

2 years ago | 1 answer | 0

Question

Impossible to import .onnx with importONNXLayers

I am trying to import different onnx models from <https://github.com/onnx/models official repo>. importONNXLayers always ends wi...

2 years ago | 2 answers | 0