surreal_image(): Create surreal datasets directly
from image files or URLs. Supports PNG, JPEG, BMP, TIFF, and SVG formats
with automatic mode detection and threshold calculation.
surreal_app(): Launch an interactive Shiny
application for exploring the surreal algorithm. Includes demo datasets,
custom text input, image uploads, and real-time parameter controls.
Export results to CSV or download plots.
surreal(): embeds a hidden image supplied by (x, y)
coordinates into a data set that seemingly has no pattern until the
residuals are plotted.surreal_text(): embeds a hidden text pattern into a
data set that seemingly has no pattern until the residuals are
plotted.r_logo_image_data: a data set containing the R logo
image that can be hidden using the surreal() function.jack_o_lantern_image_data: a data set containing a
hidden jack-o-lantern image.