Download individual PNG images from the Dashboard — download_dashboard_images

Downloads specific PNG files from the Dashboard's /data/ endpoint, one at a time. This is much faster than downloading entire zip archives when only a subset of ROIs are needed (e.g., class review mode).

Usage

download_dashboard_images_individual(
  base_url,
  file_names,
  dest_dir,
  max_retries = 3,
  sample_fail_threshold = 2
)

Arguments

base_url: Character. Dashboard base URL.
file_names: Character vector. PNG file names (e.g., "D20240716T000431_IFCB134_00108.png").
dest_dir: Character. Destination directory.
max_retries: Integer. Maximum number of retry attempts per image.
sample_fail_threshold: Integer. After this many consecutive failures from the same sample, skip all remaining images from that sample.

Value

Character vector of successfully downloaded file names.

Details

Samples that fail repeatedly are automatically skipped to avoid long waits when annotations reference samples not available on the dashboard.