Method for providing an image representation by means of a surgical microscope, and surgical microscope

A method for providing an image representation by means of a surgical microscope, comprising:

• obtaining or capturing at least one application parameter,
• capturing a color image representation of a capture region by means of a camera,
• capturing a fluorescence image representation of the capture region by means of a fluorescence camera,
• processing the fluorescence image representation by means of a processing device to optimize it for an overlay with the color image representation, wherein a type of processing is defined based on the at least one application parameter,
• overlaying the color image representation with the processed fluorescence image representation, and
• providing an image signal that encodes the overlaid image representation,
• wherein the processing comprises generating a detail image of the fluorescence image representation,
• wherein the generation of the detail image takes place taking into account the at least one application parameter, and
• wherein the overlay with the color image representation is carried out starting from the generated detail image.