基于四元数的matlab处理工具包，利用四元数实现了很多图像处理的功能，并提供了api供大家使用-Quaternion-based processing tool kit of matlab, the use of quaternions to achieve a lot of image processing functions, and to provide for your use of the api

"基于四元数卷积的彩色图像边缘检测"一文的matlab源代码，很有帮助-matlab source code of "Colour image edge detector based on quaternion convolution" Electronics Letters, 34(10), May 14 1998, 969-971

图像处理边缘检测，作为工具箱如何用于编程四元数的示例算法使用向量化编码，并且还显示了如何(algorithm at a high level using vectorized coding, and also to show how to convert Matlab image arrays to quaternion matrices and vice versa.)