| abstract |
Provided is a technique that enables accurate determination as to whether growth of bacteria has occurred or been inhibited. A bacteria test apparatus according to the present disclosure includes a microscope optical system which captures images of bacteria in each of a plurality of wells at a plurality of time points, the plurality of wells each holding a culture solution containing an antibacterial drug and the bacteria, an arithmetic unit which calculates a feature of luminance value for each of the images of the bacteria, a determination unit which determines whether growth of the bacteria has occurred in the wells based on a change in the feature of luminance value, and a display device which displays a determination result output from the determination unit. The arithmetic unit calculates, as the feature of luminance value, a feature including at least one of a mean, a median, or a mode (see FIG. 4 ). |