Hide a character in a QR code stereogram

Generates a stereogram using a real QR code as the pattern tile. The leftmost tile is a scannable QR code. Viewing with parallel vision reveals the hidden 3D character.

hideqr(
  text,
  url = "https://yufree.cn",
  file = "fakeqr.png",
  family = NULL,
  size = 600
)

Arguments

text

single character or short text to hide in 3D

url

URL or text to encode in the scannable QR code

file

output file path, default "fakeqr.png"

family

font family, default NULL. Use "STSong" for Chinese.

size

image size in pixels, default 600

Value

invisible file path