Image processing apparatus

An image processing apparatus comprising:

• a first extractor that converts a red green blue (RGB) format in which colors of a first reference image not including liquid leakage are expressed into a hue saturation value (HSV) format, and extracts a second reference image consisting of S components from the first reference image having colors expressed in the HSV format;
• a second extractor that converts the RGB format in which colors of a first detection target image are expressed into the HSV format, and extracts a second detection target image consisting of S components from the first detection target image having colors expressed in the HSV format;
• a generator that generates a third reference image and a third detection target image by smoothing the second reference image and the second detection target image, respectively;
• and
• a detector that detects the liquid leakage on a basis of a comparison result between the third reference image and the third detection target image,
• wherein the detector detects a specific area in which the liquid leakage occurs on a basis of a first background subtraction image which is a result of processing using a background subtraction method on the third reference image and the third detection target image,
• wherein the detector determines a liquid type of the liquid leakage on a basis of the specific area and of a learned model obtained by machine-learning an oil color representing a color of oil in the RGB format and a non-oil color representing a color of liquid excluding the oil in the RGB format, and
• wherein the detector acquires the first reference image and the first detection target image in which colors are expressed in the RGB format from an imaging device that captures an imaging target through which a liquid circulates, and displays a determination result of the liquid type on a display device.