Image Nudity Detection System (ImNuDe)

Abstract

Image Nudity Detection System (ImNuDe) is a Firefox browser extension that aims to promote safer and less offensive web browsing by detecting nude images on each web page visited and stopping these images from being shown. The extension uses Ap- apid's nudity detection algorithm to check for signs of nudity in images. It has two users. namely: the general user and the system administrator. The general user views web pages in accordance with the current settings of the extension. The extension may use placeholders in replace of the detected nude images or may halt the loading of the page containing nudity and redirect it to a notification page, depending on the settings specified in the system's control panel which is managed by the system administrator. In the control panel, the system administrator can activate/deactivate the extension, change its filter mode (placeholder or halt page), maintain a whitelist (a list of URLs and domain names that are exempted to being checked by the extension for nudity), set/change password, and restore default settings (extension being active and in placeholder mode, no password defined). The extension is able to detect nudity with a 91.75% recall and an 8.38% false positive rate, correctly identifying 434 out of 473 nude images as nude and incorrectly classifying 55 out of 656 non-nude images as nude.