Community Profile

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David Legland


INRA, France

47 total contributions since 2010

Research engineer in computer sciences, more precisely image processing and applied statistics.

Interested in image analysis, geometrical modelling, image registration problems, estimation in discrete images, and polyhedral reconstruction.

web page:
http://www.pfl-cepia.inra.fr/ (in french)
See also:
http://github.com/dlegland/matGeom
http://github.com/dlegland/matImage

Professional Interests: image analysis, applied statistics, geometric computing, registration

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Contributions in
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Submitted


Geometric measures in 2D/3D images
Measure of geometric parameters in 2D or 3D images (surface area, perimeter, Euler Number...)

1 month ago | 37 downloads |

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Image_M
Interactive Image Processing and Analysis, similar to ImageJ

1 month ago | 72 downloads |

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Submitted


geom2d
Geometry library for matlab. Performs geometric computations on points, lines, circles, polygons...

3 months ago | 191 downloads |

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munit
Unit tests with MATLAB.

6 months ago | 0 downloads |

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Slicer
GUI for exploration of 3D images (stacks)

7 months ago | 72 downloads |

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geom3d
Library to handle 3D geometric primitives: create, intersect, display, and make basic computations

9 months ago | 256 downloads |

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Image chamfer distances and geodesic diameter
Propagates geodesic distances in binary images, and compute geodesic diameter

11 months ago | 11 downloads |

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Answered
how to perform ANOVA on a matrix
Hi, If you want to test whether two column have same mean or not, you can check the ttest or ttest2 functions. [h12, p12...

1 year ago | 0

Answered
how to overlay multiple images into one single image
Hi, do you mean you want all images displayed at once? One way of doing is to use the montage function. This will create ...

1 year ago | 0

Solved


Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

1 year ago

Solved


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 ...

1 year ago

Solved


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...

1 year ago

Solved


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...

1 year ago

Solved


Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

1 year ago

Solved


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 ...

1 year ago

Solved


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

1 year ago

Solved


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 ...

1 year ago

Solved


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...

1 year ago

Solved


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:...

1 year ago

Solved


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

1 year ago

Answered
How can I iterate through a list of files using dlmread()?
Hi, The problem comes from you ask Matlab to open the file called 'file1', not the file whose name is stored in the variable ...

1 year ago | 0

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Solved


Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

2 years ago

Solved


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...

2 years ago

Submitted


Feret diameter and oriented box
Compute Feret diameters and oriented bounding box from label image

2 years ago | 10 downloads |

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Table class
A class for handling data tables together with row and column labels

2 years ago | 4 downloads |

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Correlation circles
Display correlation matrix using colored circles

3 years ago | 9 downloads |

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Answered
how to read 3-D medical image
Hi, there are plenty of contributions on the file exchange. In particular a contribution called "Read medical data 3D"... <...

3 years ago | 0

| accepted

Answered
How to find distance in binary image?
Hi maria, If you consider a label image (one label for each line), you can call "bwdist" function for each label "i". Then, for...

3 years ago | 0

Answered
How does this function "regionprops" to find the orientation of any object?
Hi Marian, the code is in the regionprops function, you can access it via "edit regionprops", and checking the "ComputeEllips...

3 years ago | 2

| accepted

Answered
superimpose points on image
Hi Milenko, One solution is to display the image (using etiher imshow, imagesc...), call "hold on", then plot the points at t...

3 years ago | 0

| accepted

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