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Table 2 The mean validation performance values for the metric [18] and the proposed metric.

From: A framework for measuring sharpness in natural images captured by digital cameras based on reference image and local areas

Dataset

Metric

ROCC

LCC

RMSE

RMSE (subjective)

  

Training

Validation

Training

Validation

Training

Validation

 

I

Proposed metric

0.838

0.781

0.843

0.811

8.812

10.241

20.737

 

Wang [18]

0.766

0.551

0.774

0.411

10.153

10.902

 

II

Proposed metric

0.821

0.785

0.836

0.807

12.318

13.460

22.424

 

Wang [18]

0.577

0.635

0.630

0.576

16.407

19.195

 
  1. Boldface indicates the best performer.