Gaussian derivatives, Electrical Engineering

Assignment Help:

Gaussian derivatives

Generate Gaussian kernels for a given scale "sigma", and display the kernel.

The size of the kernel should be floor(3*sigm)+1;

(i) Write an m-file "gauss.m" which generates Gaussian kernel.

function G=gauss(sigm)
s=floor(3*sigm)+1;
x=[-s:s];
G = exp(-x.^2/(2*sigm^2));
G=G/sum(sum(G));
plot(?);

Why G has to be normalized?

(ii) write an m-file gauss_x.m which generates 1 order derivative of the Gaussian kernel.

function G=gauss_x(sigm)
s=floor(3*sigm)+1;
x=[-s:s];

G=?

(iii)  Write an m-file gauss_xx.m which generates 2 order derivative of the Gaussian kernel.

function G=gauss_xx(sigm)
s=floor(3*sigm)+1;
x=[-s:s];
G=?

Observe Gaussian kernels for different sigma values.
Why the size of the kernel should be  (3*sigm)+1 ?


Related Discussions:- Gaussian derivatives

Investor demand registration rights, You have been hired by Serge Brink and...

You have been hired by Serge Brink and Larry Park to assist them in the evaluation of a recently issued term sheet from Global VC Partners. The new venture is an Internet startu

Antenna fundamentals, Antenna Fundamentals We shall discuss here only t...

Antenna Fundamentals We shall discuss here only the fundamental concepts needed to understand the role of an antenna as a power-coupling element of a system. Figure illustrates

Image processing, i have an assignment. please help me.

i have an assignment. please help me.

Simplest equivalent circuit topology using lumped elements, Simplest equiva...

Simplest equivalent circuit topology using lumped elements: For each of the Smith chart traces below, sketch (at the right of each chart) the simplest equivalent circuit topol

Explain digital signal formatting, Q. Explain Digital Signal Formatting? ...

Q. Explain Digital Signal Formatting? After quantization and coding the samples of the message, a suitable waveform has to be chosen to represent the bits. This waveformcan the

Common base configuration - bjt, Common base configuration: for pap t...

Common base configuration: for pap transistor connection for common base operation is as follow: common base means base is common to both input and output side of configurati

Bronze is an alloy of which metal, Bronze is an alloy of  (A) Copper....

Bronze is an alloy of  (A) Copper.  (B)  Aluminium. (C)  Silver.  (D)  Carbon. Ans: Bronze is an alloy of copper.

Explain by using a circuit diagram a darlington pair, Q. Explain by using a...

Q. Explain by using a circuit diagram, a ‘Darlington Pair'. Mention its advantages? THE DARLINGTON PAIR : This is a very special way of direct coupling of two transistors. The

Testing of ct operated meters, Testing of CT Operated Meters The subse...

Testing of CT Operated Meters The subsequent tests should be carried out for CT operated meters: i) Ratio test through primary injection kit, ii) Polarity test, iii)

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd