Fig. 6From: Quantitative phenotyping and evaluation for lettuce leaves of multiple semantic componentsData normalization for the positive and back leaves. A Rotated and normalized positive and back leaves using an angle sequence [0, 30, 60, 90, 120, 150, 180]. B The corresponding scaling factors. The normalized image was colored and scaled for visualization (blue and green represent the mid-rid and laminas, respectively; B202 indicates lettuce cultivarBack to article page