Clear Filters
Clear Filters

I am using the inbuilt MATLAB code for a vector, can anyone please tell me how to use the same code for images?

2 views (last 30 days)
code is at
predictor = [0 1]; % y(k)=x(k-1)
partition = [-1:.1:.9];
codebook = [-1:.1:1];
t = [0:pi/50:2*pi];
x = sawtooth(3*t); % Original signal
% Quantize x using DPCM.
encodedx = dpcmenco(x,codebook,partition,predictor);
% Try to recover x from the modulated signal.
decodedx = dpcmdeco(encodedx,codebook,predictor);
legend('Original signal','Decoded signal','Location','NorthOutside');
distor = sum((x-decodedx).^2)/length(x) % Mean square error
this code is used for a saw tooth wave , if i want to apply the same on any image...then changes should be in?

Accepted Answer

Walter Roberson
Walter Roberson on 23 May 2015
Edited: Walter Roberson on 23 May 2015
t = [0:pi/50:2*pi];
x = sawtooth(3*t); % Original signal
x = YourImage(:);
t = linspace(1, 2*Pi, length(x));
where YourImage is the name of the variable that holds your RGB image.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!