Table 1 Similarity measure statistics for various digital operations
From: Self-feedback image retrieval algorithm based on annular color moments
Operation type | Min | Max | Standard deviation | Average value |
|---|---|---|---|---|
Scaling transformation | 0.9937 | 0.9986 | 0.0042 | 0.9971 |
Rotation transformation | 0.9826 | 0.9978 | 0.0017 | 0.9942 |
Gaussian filter | 0.969 | 0.973 | 0.0014 | 0.9713 |
Brightness adjustment | 0.9918 | 0.9961 | 0.0016 | 0.9945 |
Contrast adjustment | 0.9927 | 0.9974 | 0.0013 | 0.9957 |
Gamma correction | 0.9731 | 0.9953 | 0.0073 | 0.9851 |
JPEG compression | 0.9815 | 0.9963 | 0.0065 | 0.9898 |