I am creating a webtool for image moderation (approve / flag / delete). My starting image set to review is about 200,000 with 400 images added per hour.
The end users of this tool will be outsource workers who will both clear through the backlog and continue to review the incoming images.
My prototype displays batches of a grid of 4x4 images of 240x240.
What is the ideal image size for quick and easy review (e.g. nude / not nude) and what is the ideal grid size for each batch?