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

Methods for speed and torque control of induction motors, Q. Methods for sp...

Q. Methods for speed and torque control of induction motors? The following are methods available for speed and torque control of induction motors. • Pole-changing method

Rankine cycle and modified rankine cycle, Discuss in detail the several ene...

Discuss in detail the several energy resources and their availability. How does a Rankine cycle differ from a modified Rankine cycle? Write down the mathematical expression of m

Define combinations of logic gates, Define Combinations of logic gates? ...

Define Combinations of logic gates? The Logic gates be able to combined to produce more complex functions. They can as well be combined to substitute one kind of gate for anoth

Types of field-effect transistors, Types of Field-Effect Transistors T...

Types of Field-Effect Transistors The channel of a FET (field-effect transistor) is doped to produce either an N-type semiconductor or a P-type semiconductor. The drain and so

Explain the construction of power transformer, Q. Explain, with the aid of ...

Q. Explain, with the aid of diagrams, the following in relation to the construction of power transformers. Include the advantages and disadvantages in your description. a) Core

Explain cascading of multiple pics 8259, Explain cascading of multiple PICS...

Explain cascading of multiple PICS 8259.  The 8259A adds 8 vectored priority encoded interrupts to the microprocessor. It can be expanded to 64 interrupt requests by using one

Pneumatic circuit diagram, FIGURE shows a pneumatic circuit diagram used fo...

FIGURE shows a pneumatic circuit diagram used for air supply and exhaust in an automatic control system.  (a) Name all symbols (including pipelines) used in the system. (b) N

Diode transistor logic gate, A circuit realization of a NAND gate will now ...

A circuit realization of a NAND gate will now be developed. By connecting NAND gates together in various ways, one can synthesize other gates and flip-flops. Thus in principle, a s

Simulate a diode application circuit using multisim ewb, a. Simulate a diod...

a. Simulate a diode application circuit using Multisim EWB.  Compare calculated and simulated results Each student must choose one of the following circuits from question 1 (Ref

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