Patent ID: 6876399

Claim:
An image sensing apparatus for a microscope, comprising: an image sensing unit for sensing an observation image obtained by a microscope and obtaining the observation image; a microscopy technique determination unit for detecting a microscopy technique in the microscope; a luminance distribution determination unit for calculating a luminance distribution of the observation image based on the microscopy technique detected by said microscopy technique determination unit, and determining from the luminance distribution a region where tone is to be corrected in the observation image; and a tone adjustment unit for correcting tone in accordance with a tone correction amount arbitrarily set for the region of the observation image determined by said luminance distribution determination unit; wherein when a fluorescent observation state is detected by the microscopy determination unit: the luminance distribution determination unit identifies a low-luminance range representing a background and an intermediate-luminance range representing a fluorescent specimen part, from the luminance distribution of the observation image, and determines a boundary between the low-luminance range and the intermediate-luminance range, and the tone adjustment unit performs an arbitrarily set tone correction on the fluorescent specimen part.