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Figure 4 | BioMedical Engineering OnLine

Figure 4

From: Calibration and segmentation of skin areas in hyperspectral imaging for the needs of dermatology

Figure 4

Graph of changes in the average brightness value in the ROI for k of these images in a series. The graph a) shows changes in the average L ROI MED , minimum L ROI MIN and maximum value L ROI MAX for individual k-th images in the sequence. These values are calculated in the ROI covering a sample area of the human hand. The graph b) shows changes in the average L ROI MMED , minimum L ROI MMIN and maximum value L ROI MMAX for individual k-th images in the sequence but after normalization described in the text.

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