Rock joint opening measuring method and terminal equipment

The invention provides a rock joint opening degree measuring method and terminal equipment. The method comprises the following steps: acquiring an original image of a drilled hole; converting the original image into a grey-scale map; carrying out image segmentation on the grey-scale image; the average joint width # imgabs0 # of the segmented image is calculated, the average joint width is compared with a first preset threshold value and a second preset threshold value, and the rock mass feature area is divided into a complete rock mass, a fractured rock mass and an open joint; and calculating an RQD rock quality index according to the rock mass characteristics, and evaluating the integrity of the engineering rock mass. According to the method, the influence of the joint opening degree on the physical and mechanical properties of the rock mass is fully considered, the real topological state of the engineering rock mass can be well reflected, and an efficient and reliable method is provided for rock mass integr