A method is for recording and evaluating image data with the aid of a
tomography machine. At least two recordings with different spectral
distribution are made of an examination area of an object. Further,
measured data obtained from the two recordings are evaluated such that
additional information relating to the examination area and/or a specific
representation of the image of the examination area are/is obtained from
the different spectral distributions. The tomography machine includes at
least two separate recording systems. Further, it is operated such that
the two recording systems operate with a different spectral distribution.
As such, the additional information and the specific representation of an
image can be obtained in conjunction with a reduced scanning time.