Figure 3: Metric distance for tamper detection (row 1, Image A: object add, row 2, Image B: object delete, and row 3, Image C: object modify) based on salience map. (a) Original image, (b) Original saliency map, (c) Tampered image, and (d) Tampered saliency map. Ten regions with different salient map weights (colored rectangles) are selected for metric distance computing. Regions , , and corresponding to images A-C contribute the max distance for tamper detection.