<div>
<div class="content wysiwyg-content">
Hi,<br />
<br />
I've got the definition of a laplacian filter as:<br />
<br />
&nbsp; &nbsp; <a href="http://upload.wikimedia.org/math/c/6/5/c65dd028c1c9fb80a8288ca893e949da.png" rel="ugc">http://upload.wikimedia.org/math/c/6/5/c65dd028c1c9fb80a8288ca893e949da.png</a><br />
<br />
I don't understand how I would do that in matlab - is it a combination of different functions like fspecial, or is there a direct laplacian function you use? <br />
<br />
Thanks
</div>
</div>


Hi,

I've got the definition of a laplacian filter as:

    http://upload.wikimedia.org/math/c/6/5/c65dd028c1c9fb80a8288ca893e949da.png

I don't understand how I would do that in matlab - is it a combination of different functions like fspecial, or is there a direct laplacian function you use? 

Thanks

Running a laplacian filter on a point?

A programming language is a formal constructed language designed to communicate instructions to a machine, particularly a computer. Thousands of different programming languages have been created, mainly in the computer field, and many more still are being created every year. The description of a programming language is usually split into the two components of syntax (form) and semantics (meaning). Some languages are defined by a specification document (for example, the C programming language is specified by an ISO Standard), while other languages (such as Perl) have a dominant implementation that is treated as a reference. Some languages have both, with the basic language defined by a standard and extensions taken from the dominant implementation being common.

Programming Languages-Other

The Math / Science topic primarily includes discussions of mathematics, physics, statistics and economic analysis, but also biology, chemistry and other sciences.

Math / Science

MATLAB is a numerical computing environment and proprietary fourth-generation programming language. MATLAB allows matrix manipulations, plotting of functions and data, implementation of algorithms, creation of user interfaces, and interfacing with programs written in other languages, including C, C++, Java, Fortran and Python. Although MATLAB is intended primarily for numerical computing, an optional toolbox uses the MuPAD symbolic engine, allowing access to symbolic computing capabilities. An additional package, Simulink, adds graphical multi-domain simulation and model-based design for dynamic and embedded systems.