Filtering, Electrical Engineering

Assignment Help:

Filtering

 (i) Write an m-file "mymedian.m" which will take an image and filter size and perform median filtering. Display input and output image. Use 

help median

function imm=mymedian(imn,msize)
[h w]=size(imn);
kernel_size=?
imm=imn;
for i=msize+1:(h-msize)
  for j=msize+1:(w-msize)
    imm(i,j)=median(reshape(imn(i-msize:i+msize,j-msize:j+msize),1,kernel_size));
  end
end

What is the median value of an image?

Comment on the complexity (number of operations per pixel) of the algorithm. 

(ii) Write an m-file "mygaussian.m" which will take an image and filter size and perform Gaussian filtering. Display input and output image.


function img=mygaussian(imn,sigma)
g=gauss(sigma);

img=?(iii) Perform median and Gaussian filtering on  face_g.png, face_m.png,statue_m.png.
What kind of noise the median filer is useful for?
What kind of noise the Gaussian filer is useful for?


Related Discussions:- Filtering

Find the transmitters unmodulated carrier power, At the transmitter in a st...

At the transmitter in a standard AM system, P f = 50 W. In the receiver (S 0 /N 0 ) AM = 250 when (S i /N i ) AM = 3000. Find the transmitter's unmodulated carrier power and t

Give the applications of carbon, Give the applications of carbon. Car...

Give the applications of carbon. Carbon : These materials used in the field of electrical engineering are manufactured from graphite and the other forms carbon as coal and so

Show the conditions necessary for sustained oscillation, The conditions nec...

The conditions necessary for sustained oscillation can be summarized as follows: 1. There should be a positive feedback. 2. The loop gain of the circuit must be equal to or g

Reversibility principle, The reversibility principle of electrical machines...

The reversibility principle of electrical machines states that an electrical machine can be used to operate either as a motor, converting electrical to mechanical energy, or as a g

Explain a common emitter configuration without a feedback, Q. Explain a com...

Q. Explain a common emitter configuration without a feedback. A simple common emitter transistor amplifier--having no negative feedback--is not an ideal amplifier. This is beca

Determine voltage ratio for the circuit, Q. Determine v o /v i for the ci...

Q. Determine v o /v i for the circuit shown in Figure if the op amps are ideal.

Advantages of subscriber loops signalling, Q. Advantages of subscriber loop...

Q. Advantages of subscriber loops signalling? (i) Information can be exchange between processors much more faster than when channel associated signalling is used. (ii) As a

Core electron binding energies, Perform a Hartree-Fock geometry optimizatio...

Perform a Hartree-Fock geometry optimization calculation of butadiene using a minimal basis set. Repeat with the 6-311G(d,p) basis set, using the optimized minimal basis set geomet

Radio hardware, Filters 1. You need to design a lowpass filter with cutoff ...

Filters 1. You need to design a lowpass filter with cutoff frequency Fc= 1MHz. a. What is the minimum filter order required for 30 dB rejection (-30 dB gain) of 10 MHz? b. What is

Avalanche breakdown region, Avalanche breakdown region: Even though th...

Avalanche breakdown region: Even though these regions are well described for sufficiently large applied voltage, they overlap somewhat for small (less than a few hundred milli

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