The invention relates to an
image processor (170) and / or a computer-implemented
image processing method for a medical fluorescent viewing device (100), such as a fluorescent
microscope or a fluorescent
endoscope. A digital
white light color image (114) of the object (106) recorded in the first imaged spectrum (202) and a digital fluorescent
color image (112) of the object (106) recorded in the second imaged spectrum (222) are retrieved. The second imaged spectrum (222) overlaps a
fluorescence emission spectrum (226) of the at least one
fluorophore (116) and is different from the first imaged spectrum (202). Both the first and second imaged spectra (202, 222) overlap the
visible spectrum (212). In order to facilitate a user's manipulation of a medical viewing device (100) and migration to a new
fluorescence imaging technique, at least one digital output
color image (160, 160-I, 160-II, 160-III) of a set (1000) of output digital output color images (160) is provided, the set comprising: digital output color images (160, 160-I) generated by an
image processor (170) only from digital
fluorescence color images (112); a digital output color image (160, 160-II) generated by the
image processor (170) only from the digital
white light color image (114); and a digital output color image (160, 160-III) generated by the image processor (170) from a combination of the digital fluorescent color image (114) and the digital white color image (112). For switching between the respective output images, receiving a display selection
signal (900) from a selector device (165); and selecting at least one digital output color image (160, 160-I, 160-II, 160-III) from the group for output according to the display selection
signal (900).