1. A method for monitoring a thermodynamic process in an installation, the method comprising: providing image material obtained from the process; and subjecting the image material to an automatic image evaluation that is at least substantially based upon an eigen value problem approach, wherein the providing of the image material includes simultaneously capturing in one common frame at least both (a) emissions from at least one flame of the thermodynamic process and (b) emissions from material to be transformed through the thermodynamic process, whereby the image material includes the frame, and wherein the subjecting of the image material to the automatic image evaluation includes subjecting the entire frame to the automatic image evaluation.