The data were divided into different light curves based upon the Julian dates on which the images were taken. To remain consistent with previous analyses of II Pegasi, the times assigned to each data point on the light curves is its Julian date minus 2443033.47. The data are split into sixty-eight separate light curves. There is no set number of data points in the light curves because of differing frequencies of measurements. Several of the light curves are entirely disjoint from one another due to significant temporal gaps in the acquisition of data. 

The intensities obtained for II Pegasi were normalized. These normalized values were what were used to make the light curves.  Both the blue and visual filter (B and V , respectively) data were processed with the Light-curve Inversion algorithm. Rough estimates of the noise values associated with each light curve were obtained through individual inversions. Separate B and V inversions were performed with a range of noise values. The noise level that was chosen was one low enough not to be over-smoothing the surface and high enough not to be expressly fitting the noise.  

As an example of this process the following figures contain a series of light curves and surface plots for the time period of days 9914.3134 through 9953.2646. These combined inversions are presented here.
 

B Filter light curves and surface for i = 45°, looking down on longitudes 90° and 270°, respectively.

V Filter light curves and surface for i = 45°, looking down on longitudes 90° and 270°, respectively.

B and V Filter light curves and surface for i = 45°, looking down on longitudes 90° and 270°, respectively.

 An example of differential rotation, MJD 4382.3737 to 4893.1052 illustrates a lower-latitude spot moving faster as the star rotates than the higher-latitude spot also on the surface.  As the distance between the two spots decreases, the ability of Light-curve Inversion to resolve the individual spots decreases.

MJD 4382.3737 to 4400.3909 — Looking down on 180°. longitude for i = 60°.

MJD 4401.2530 to 4436.3605 — Looking down on 190° longitude for i = 60°.