Figure 5
From: Eigen-disfigurement model for simulating plausible facial disfigurement after reconstructive surgery
Comparison of different color normalization techniques. This figure provides visual comparison between different color normalization technique results. Although some illumination variations still exist, the contrast stretching compensated the color temperature difference among examples. Retinex algorithms (single and multi scale) and DCT based algorithm were able to compensate the brightness difference but lose variations in color, which is important for our application.