Abstract
An automatic image analysis system has been developed, and used initially for obtaining size distributions of droplets in two-phase flows from multiple photographs with sub-microsecond exposure. It requires only a conventional, relatively cheap television camera and computing facilities likely to be available in any laboratory undertaking such work, avoiding the need for expensive purpose-built equipment. Image recognition and subsequent processing, e.g., rejection of unfocused images, are dealt with by software, based on detection at eight grey levels. The system and its calibration are described, and a typical analysis is presented and compared with a manual sizing.
Published Version
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