Medical control device and endoscope system

A medical control device comprising:

• light source control circuitry configured to
• control a light source to emit a plurality of pulses, each pulse having a pulse width and a crest value, in one frame of an image sensor, the image sensor including a plurality of pixels configured to receive light from an object illuminated with the plurality of pulses and generate pixel signals, the light source control circuitry configured to set different crest values for at least two pulses of the plurality of pulses based on a reference value in accordance with an image output from the image sensor;
• imaging control circuitry configured to control the image sensor to sequentially generate a pixel signal for each of the pixels within the one frame;
• and
• an image processor configured to generate, from the pixel signal, a pseudo pixel signal for a horizontal line among horizontal lines of the pixels, by multiplying a pixel signal generated during an illumination period of a light pulse of the plurality of pulses within the one frame from each pixel of the horizontal line by a ratio of an exposure amount of the light pulse for that horizontal line made in within the one frame to a total exposure amount obtained by adding each exposure amount of all light pulses of the plurality of pulses exposing the horizontal line during an exposure period,
• wherein each exposure amount for each light pulse within the exposure period is a value defined by the pulse width and the crest value.