Example-Based Image Super-Resolution Techniques

Balloon (kNN, SVR)

Balloon (SRCNN)

Butterfly (SVR)

Butterfly (SVR diff)

Clownfish (SVR)

Clownfish (SVR diff)

Balloon (x2)

Description:

Parameters:

PSNR (dB):

LR Input shown below:

Balloon (x3)

Description:

Parameters:

PSNR (dB):

LR Input shown below:

Flower (x2)

Description:

Parameters:

PSNR (dB):

LR Input shown below:

Butterfly (x2)

Description:

Parameters:

PSNR (dB):

LR Input shown below:

Butterfly-Diff (x2 diff)

Description:

Parameters:

PSNR (dB):

LR Input shown below:

k = 2500 → 5000

k = 5000 → 10000

k = 10000 → 20000

Clownfish (x2)

Description:

Parameters:

PSNR (dB):

LR Input shown below:

Clownfish-Diff (x2 diff)

Description:

Parameters:

PSNR (dB):

LR Input shown below:

1 × 1 → 3 × 3

3 × 3 → 5 × 5

5 × 5 → 7 × 7