A method is for automatic object marking in medical imaging. The method includes coupled displaying of different display modes of at least one image data record containing at least one object to be marked, in different display windows on at least one computer screen. The method further includes transferring the position of an initial point, selected by the user as part of an object-determining first marking, to the computer. Then, pattern recognition techniques are applied to the environment of the initial point of the first marking, resulting in a detailed high-resolution second marking of the object. Thereafter, reversible coding of the second marking of the image data records present in the computer takes place. Finally, the marked object is accentuated relative to its environment in the image data records on the screen.