Processor device, method of operating processor device, endoscope system, image display device, method of operating image display device, operating program for image display device

A method of operating a processor device to be connected with an endoscope irradiating an object to be observed with illumination light supplied from a light source, and to output a video of the object to be observed to a monitor, the video being picked up by the endoscope, the method comprising:

• an image acquisition step of acquiring a static image of the object to be observed only when an operator gives an instruction for operation for recording the static image while observing the video of the object to be observed;
• a tone change-related information step of acquiring tone change-related information about a change in a tone of the static image from a reference tone only in a case where the instruction for operation is given;
• when the tone of the static image deviates from the reference tone, a correction profile step of creating a correction profile according to the tone change-related information to correct the change in tone of the static image only in a case where the instruction for operation is given;
• an embedding step of embedding the tone change-related information or the correction profile in the static image;
• and
• an output step of outputting the static image, in which the tone change-related information or the correction profile is embedded.

An endoscope system comprising:

• an endoscope that irradiates an object to be observed with illumination light supplied from a light source;
• a light source device in which the light source is built;
• and
• a processor device to which the endoscope and the light source device are to be connected,
• wherein the processor device includes a processor configured to:
• acquire a static image of the object to be observed only when an operator gives an instruction for operation for recording the static image while observing the video of the object to be observed,
• acquire tone change-related information about a change in a tone of the static image from a reference tone only in a case where the instruction for operation is given;
• when the tone of the static image deviates from the reference tone, create a correction profile according to the tone change-related information to correct the change in tone of the static image only in a case where the instruction for operation is given;
• embed the tone change-related information or the correction profile in the static image, and
• output the static image, in which the tone change-related information or the correction profile is embedded.

An image display device comprising a processor configured to:

• receive a static image in which tone change-related information about a change in a tone of the static image from a reference tone or a correction profile created according to the tone change-related information and used to correct the change in the tone of the static image is embedded only in a case where an instruction for operation for recording the static image is given;
• create the correction profile from the tone change-related information in a case where the static image received by a receiving unit is the static image in which the tone change-related information is embedded;
• perform the correction on the static image by using the correction profile in a case where the correction profile is created;
• and
• control display of the static image, on which the correction has been performed, on a display unit.

A method of operating an image display device, the method comprising:

• a receiving step of receiving a static image in which tone change-related information about a change in a tone of the static image from a reference tone or a correction profile created according to the tone change-related information and used to correct the change in the tone of the static image is embedded, only in a case where an instruction for operation for recording the static image is given;
• a creation step of creating the correction profile from the tone change-related information in a case where the static image received in the receiving step is the static image in which the tone change-related information is embedded;
• a correction step of performing the correction on the static image by using the correction profile in a case where the correction profile is created;
• and
• a display control step of controlling display of the static image, on which the correction has been performed, on a display unit.