# Supplementary Material

# Blind Super-Resolution Kernel Estimation using an Internal-GAN

Anonymous NeurIPS submission

Paper ID 114

The file contains:

1. Proof for X4 SR kernel extraction (line 196 in the paper) - Link

2. Visual comparison of our method (KernelGAN + ZSSR[30]) to SotA SR and Blind-SR methods: RCAN+ [38], EDSR+ [21], PDN [34], WDSR [36], Michaeli & Irani [24] + ZSSR[30], and Bicubic interpolation.

PLEASE MAKE SURE TO UNZIP THE DIRECTORY!

Only then open KernelGAN.html (in GOOGLE-CHROME browser).

Otherwise, you will not be able to view our experimental results.

##### Real images (with blue background), have no ground-truth high resolution.

Click colored buttons to switch between SR methods.

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Image 895 X4 (DIV2KRK)

LR Input Image

Bicbubic Interp. EDSR+ RCAN+ PDN WDSR Michaeli&Irani + ZSSR Ours + ZSSR Ground Truth

Ours + ZSSR

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Image 816 X4 (DIV2KRK)

LR Input Image

Bicbubic Interp. EDSR+ RCAN+ PDN WDSR Michaeli&Irani + ZSSR Ours + ZSSR Ground Truth

Ours + ZSSR

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Kennedy Brothers X4 (Downloaded from the Internet)

LR Input Image

Bicbubic Interp. EDSR+ RCAN+ PDN WDSR Michaeli&Irani + ZSSR Ours + ZSSR

Ours + ZSSR

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Image 855 X4 (DIV2KRK)

LR Input Image

Bicbubic Interp. EDSR+ RCAN+ PDN WDSR Michaeli&Irani + ZSSR Ours + ZSSR Ground Truth

Ours + ZSSR

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Soldier's Parade X4 (Downloaded from the Internet)

LR Input Image

Bicbubic Interp. EDSR+ RCAN+ PDN WDSR Michaeli&Irani + ZSSR Ours + ZSSR

Ours + ZSSR

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Image 892 X4 (DIV2KRK)

LR Input Image

Bicbubic Interp. EDSR+ RCAN+ PDN WDSR Michaeli&Irani + ZSSR Ours + ZSSR Ground Truth

Ours + ZSSR