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

Transformer, 1 diagram basic layout of a simple transformer

1 diagram basic layout of a simple transformer

Draw the re-model for the circuit, Draw the re-model for the circuit given ...

Draw the re-model for the circuit given in figure and calculate: a). The input impedance (β=100), b). The output impedance (r0 = 50 kΩ) and c). The mid-band collector-base

Explain total internal reflection, Explain Total internal reflection? T...

Explain Total internal reflection? The refractive index of a medium is defined as the ratio of velocity of light in vacuum to the velocity of light in that medium n x = C/V

Substations, How to calculate Electrical losses by transformation

How to calculate Electrical losses by transformation

#title.ec 1., draw the gain frequency response of an RC coupled circuit? di...

draw the gain frequency response of an RC coupled circuit? discuss fall in gain at very low and very high frequencies?

Voltage divider bias, Voltage divider bias: The voltage divide...

Voltage divider bias: The voltage divider is made by using external resistors R 1  and R 2 . The voltage beyond than R 2  forward biases the emitter junction. Via prop

Metals, Metals, Semiconductors, and Insulators For electrons...

Metals, Semiconductors, and Insulators For electrons to move within an applied electric field there have to be states available to them. A totally filled band ca

Analog signal processing, Derive Equation 13-20 pertaining to the convers...

Derive Equation 13-20 pertaining to the conversion algorithm based on redefined unit capacitor

Masking - immediate with accumulator instruction , Masking As we know...

Masking As we know the MASJ is used  to cover  some part  of our  face  which  we want to hide  and to  show  other part of the face  which  we want to show. Similarly  the

Three-phase Portable Bench Power Supply, hi can you help me to create a dc...

hi can you help me to create a dc to 3 phase ac circuit which can exceed at any point: 50V and 20A and 400W maximum. The output should be variable from about 0 – 25V per phase, wi

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