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Table 1 The LCC values of the benchmark metrics and the proposed metric with subjective sharpness.

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

Metric

Dataset I

Dataset II

 

Marziliano[29]

Ferzli[30]

Narvekar[31]

Wang[18]

MTF50

Proposed

Marziliano[29]

Ferzli[30]

Narvekar[31]

Wang[18]

MTF50

Proposed

Content 1

0.676

0.500

0.488

0.618

0.629

0.840

0.443

0.415

0.240

0.410

0.600

0.770

Content 2

0.489

0.432

0.494

0.886

0.547

0.898

0.142

-0.045

-0.057

0.664

0.595

0.880

Content 3

0.676

0.254

0.498

0.782

0.545

0.748

0.774

0.574

0.725

0.051

0.752

0.805

Content 4

0.683

0.105

0.296

0.361

0.788

0.684

0.793

0.716

0.723

0.815

0.800

0.761

Content 5

0.845

0.471

0.425

0.775

0.554

0.920

0.820

0.886

0.655

0.681

0.696

0.931

Over all

0.733

0.477

0.563

0.786

0.650

0.848

0.589

0.511

0.404

0.538

0.669

0.828

  1. Boldface indicates the best performer.