Community Profile

# 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)
http://github.com/mattools/matGeom
http://github.com/mattools/matImage

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

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Submitted

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

Submitted

Computes the graph of adjacent regions in a labeled image

Submitted

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

Submitted

Slicer
GUI for exploration of 3D images (stacks)

Submitted

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

Submitted

Image_M
Interactive Image Processing and Analysis, similar to ImageJ

Submitted

munit
Unit tests with MATLAB.

Submitted

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

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...

2 years ago | 0

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 ...

2 years 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...

2 years 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 ...

2 years 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...

2 years 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...

2 years 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.

2 years 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 ...

2 years ago

Solved

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

2 years 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 ...

2 years 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...

2 years 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:...

2 years ago

Solved

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

2 years ago

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 ...

2 years ago | 0

| accepted

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

Submitted

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

Submitted

Correlation circles
Display correlation matrix using colored circles

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"... <...

4 years ago | 0

| accepted

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...

4 years ago | 0