Ipa是一个数字图像处理与识别的通用性平台。它由一组松耦合的算法与功能类组成，可以帮助用户快速的开发用于某一专业领域的数字图像处理与计算机视觉程序。-IPA library is a platform which developed for image processing and analysis. It composed by a lot of class of algorithm and function with loose coupling, which can help users