Scale-space pyramids, Electrical Engineering

Scale-space pyramids

  Write an m-file "scale_space.m" which computes scale space representation of an input image for a given scale "sigma" and displays them.

(i) 4 scale levels, all the levels have the same size.

function scale_space(imn, sigma)

s=sigma;
figure(1);
imshow(imn,[]);
for i=1:3
  g=gauss(s);
  imgx=?
  imgxy=?
  s=?
  figure(i+1);
  imshow(imgxy,[]);

end

(ii) 4 scale levels, every next level is twice smaller than the previous one.
To sample the image use:
imn=imgxy(1:sampling_step:end,1:sampling_step:end);
Choose the sampling_step.

Discuss these representations.
How do they differ? Are they equivalent? Which one is more suitable? Why?

Posted Date: 2/26/2013 12:20:53 AM | Location : United States







Related Discussions:- Scale-space pyramids, Assignment Help, Ask Question on Scale-space pyramids, Get Answer, Expert's Help, Scale-space pyramids Discussions

Write discussion on Scale-space pyramids
Your posts are moderated
Related Questions
Assembly Languages  ( Second Generation Language) To overcome  the difficulty of machine  language assembly  language  was  designed. After  facing the  difficulty of machine

Explain what is meant by a datapath and a datapath logic cell illustrating your answer by reference to a suitable function using diagrams as appropriate. Show using a diagram ho

which ckt. Or components using for irregular ac sine wave change into pure sine wave.......

advantages and disadvantaages of superposition

(a) The circuit of Figure 1 represents an amplifier-speaker connection. The filter is a low pass filter which is connected to the woofer. The filter is a -network. (i) Design a

Q. A three-phase, three-wire 208-V system is connected to a balanced three-phase load. The line currents ¯ IA, ¯ IB, and ¯ IC are given to be in phase with the line-to-line voltage

Future scope on MATLAB in India

Q. Applications of operational amplifiers? An op amp along with a few external components (resistors and capacitors) is capable of performing many different operations-hence th

Q. Explain the working principle of a TRIAC. "Triac" is an abbreviation for three terminal ac switch. 'Tri'-indicates that the device has three terminals and 'ac' indicates tha

Explain chemical vapour deposition method for the preparation of nanomaterial and its properties