repasar documentación A level set in a gray-scale image is a connected set of points (pixels) with a gray-scale level above a given threshold. Component trees are built upon the inclusion relation of the level sets in an image.
Cambiar, repasar. The ROI is a property defined in the class QVGenericImage, so it is inherited by class QVImage. They are relevant for image processing functions from the IPP wrapper functions group. These functions can restrict the area they process to a rectangular region of the image, called the region of interest.
estudiar que pasa con estos unlink, al marcarse de esta manera como se destruye ya no se llama a read o write y creo que se queda el link creado como basura.