The measurement features of digital images obtained by remote sensing materials

The algorithm for determining the linear sizes of objects according to digital (electronic) images obtained by low-format digital cameras is proposed in this work. Unlike known approaches based on the image scale, the spatial resolution or size of calibration objects, the proposed algorithm is based on the parameters of a digital image and the crop factor of a camera matrix. The initial data for determining the scale of a digital image in the proposed algorithm is not only the size ratio of an object and its digital image, but also the characteristics of the metadata digital image in EXIF format.