Research Article

A Novel HDR Image Zero-Watermarking Based on Shift-Invariant Shearlet Transform

Table 10

Average running time of the proposed algorithm for eight HDR images.

ā€‰Zero-watermark generationZero-watermark extraction under TM attacks
TM1TM2TM3TM4TM5

Time (s)1.41251.35001.33411.51601.31261.2982