针对水中微气泡尺度分布参数在线测量的需求，提出了一种测量水中微气泡尺度分布的图像处理与分析方法。以在实验室显微照相拍摄的水中微气泡图像为研究对象，阐述了该方法所采用的图像增强、图像分割、图像形态学处理和图像颗粒测量的具体手段，给出了其中单幅微气泡图像的尺度分布测量结果。实验与分析结果表明，该方法能有效地获取水中微气泡的尺度分布，并能分离粘连气泡，可应用于水中气泡群参数的在线检测。

Aiming at on-line measurement of micro-bubbles’ size distribution in water, a proper image proceeding method was proposed. By regarding micro-bubbles’ pictures taken by micrography in laboratory as research object, the idiographic means such as image enhancement, image segmentation, morphological transformation and particle measurements adopted in the method were introduced, and the size distribution in a micro-bubbles’ picture was given. Experimental results and analysis show that the proposed method can obtain the size distribution of micro-bubbles in water effectually, and separate conglutination bubbles. The method is suitable for on-line measuring bubbles’ parameters in water.