self-made OMCD dataset

This dataset includes two GaoFen-2 satellite images of the Shengli No. 1 open-pit mine and Shengli West No. 3 open-pit mine in Xilinhot, Inner Mongolia Autonomous Region, China, on 24 March 2015 and 20 March 2020, with significant changes due to mining activities in both phases of the images. The spatial resolution of the images is 1 m. The images were cropped to 512×512 pixels for a total of 52 image pairs.