デジタル著作権管理
Technologies and strategies that control access to and usage of digital images to protect intellectual property rights.
DRM for images encompasses visible watermarks, invisible watermarks, download prevention (right-click disabling, which is easily circumvented), low-resolution web delivery with high-resolution behind authentication, licensing metadata embedded in files, and blockchain-based ownership registries. Stock photography services use DRM to prevent unauthorized use — images are watermarked until purchased and licensed. Photographers use DRM-aware platforms that track image usage across the web using reverse image search. The effectiveness of image DRM is limited by the fundamental nature of digital images — any image displayed on a screen can be captured. This reality has shifted industry focus toward detection and enforcement rather than prevention, using AI-powered image tracking to identify unauthorized usage at scale.