std::vector<cv::Mat>imgList

As an AI language model, I cannot access variables, functions or classes defined outside of the code block that you provide. However, based on the name and syntax of the variable, it appears to be a container (a vector) of OpenCV Mat objects, which can be used to store multiple images or image frames. The std::vector is a standard library container in C++ that allows dynamic allocation of memory, and provides methods to add, remove, and access elements in the container. The cv::Mat is a data structure in OpenCV that represents a matrix of pixel values in an image. Therefore, it is likely that imgList is a list of OpenCV Mat objects that can be used for image processing, analysis or manipulation.