MATLAB: Positive and Negative Image

adaboost algorithmclassification of imagespositive and negative images

What are positive and negative images?

I read it while studying adaboost algorithm.

Best Answer

I don't know the context in which the author was using those names.

Related Solutions

MATLAB: From negative to positive

Hi,

if you have no complex numbers:

abs(A)

For complex numbers abs will calculate the magnitude.

Best regards

Stephan

MATLAB: Flip signal (positive and negative)

I have no idea what you want, but take a look at flipping functions flipud() and fliplr(), as well as masking:

negIndexes = signal < 0;
negValuesOnly = signal(negIndexes); % Extract neg values only, or...
% Set negative values to zero (masking)
noNegatives = signal; % Initialize.
noNegatives(negIndexes) = 0; % Set negatives to zero, positives remain as-is.
% Reverse the signal horizontally
reversedSignal = fliplr(signal);
% Invert the signal vertically
signal = max(signal) - signal;

Best Answer

Related Solutions

MATLAB: From negative to positive

MATLAB: Flip signal (positive and negative)

Related Question