Scan a PNG folder with class subfolders

Scans a directory containing PNG images organized into class-name subfolders (e.g. as exported by export_db_to_png or other tools). Folder names follow the iRfcb convention where a trailing 3-digit suffix is stripped (e.g. Diatom_001 becomes Diatom).

Usage

scan_png_class_folder(png_folder)

Arguments

png_folder

Path to the top-level folder containing class subfolders

Value

A list with components:

annotations

Data frame with columns sample_name, roi_number, file_name, and class_name

classes_found

Character vector of unique class names found

sample_names

Character vector of unique sample names found

Examples

if (FALSE) { # \dontrun{
result <- scan_png_class_folder("/data/png_export")
head(result$annotations)
result$classes_found
result$sample_names
} # }