Test data

Figure 1(a)

Figure 1(b)

Watermarked image

size and format

1000 × 1000 (.tif)

1000 × 1000 (.tif)

Screen capture photo

size and format

3024 × 4032 (.jpg)

3024 × 4032 (.jpg)

Preprocessed photo size and format

2493 × 2494 (.jpg)

2174 × 2156 (.jpg)

1

1

0

0

Extracted QR code

Scanning result

Urban planning copyright protection

Urban planning copyright protection