Figure 2.

(A) An example of a composite peak feature successfully detected by the wavelet-transform method. Red circles indicate peak apexes and green circles indicate peak boundaries. (B) An example of a peak feature that was initially identified as a simple peak feature by the wavelet-transform method. It was then corrected as being a composite peak feature after the local maximum method was applied to examine the surrounding area. The red circle indicates the peak apex that the wavelet transform method originally detected. The blue circles indicate peak apex that the local maximum method found. The presence of the peaks denoted by blue circles indicates that the peak denoted by the red circle is a composite peak feature, not a simple one.