Estimating the object size from static 2D image

In this paper the real size of the object from a static digital image is estimated. The analysis of selected algorithms used in the area of computer vision is carried out, this includes introduction of the software tools efficient enough to measure the object size. Proposed solution has to be in compliance with the conditions for correct processing of obtained information, such as a suitable scene for measuring and correct adjustment of the camera. The final software solution calculates the estimated size of measured object while utilizing substitution variables that were created for this purpose. Such variables are based on the acquired images and their subsequent processing.