Information processing apparatus, information processing system, image input apparatus, image input system and information exchange method for modifying a look-up table

An image input apparatus comprising:

• an image processing device that performs image processing on an input image by referencing a look-up table;
• a storage device that stores a plurality of control points, the control points, in combination with an interpolation operation specifying a characteristics curve for defining conversion characteristics of the look-up table;
• a control device that inputs or outputs, at least the control points when there is a request from an external device to input or output information related to the look-up table;
• and
• a communication interface that communicates with the external device, wherein
• the control device inputs or outputs the control points through the communication interface,
• the control device outputs the control points to the external device from the image input apparatus through the communication interface and receives the control points and the look-up table from the external device through the communication interface, and
• the input image is processed with reference to the received look-up table by the image processing device.

An information processing apparatus, comprising:

• a look-up table generating device that generates a characteristics curve for defining conversion characteristics of a look-up table by applying an interpolation operation to a plurality of control points;
• a control device that outputs, at least the control points when outputting information related to the look-up table to an image processing device that performs image processing on an input image by referencing the look-up table, and that inputs, at least the control points when inputting the information related to the look-up table from the image processing device;
• and
• a communication interface that communicates with the image processing device, wherein
• the control device inputs and outputs the control points through the communication interface,
• the control device inputs the control points from the image processing device through the communication interface, and
• the information processing apparatus further comprises:
• a look-up table generating device that generates an adjusted control point and the look-up table, based on instructions of adjustments of the control point from a user, and
• the control device outputs the adjusted control point and the generated look-up table to the image processing device through the communication interface.

An information input system, comprising:

• an information processing apparatus that generates a look-up table, the look-up table referenced to obtain a post-adjustment processing image data value corresponding to a pre-adjustment processing image data value;
• and
• an image input apparatus that performs adjustment processing on image data obtained from an input image by referencing the look-up table, wherein:
• the information processing apparatus outputs control points that, in combination with an interpolation operation, generate a characteristic curve for defining conversion characteristics of the look-up table, to the image input apparatus;
• and
• the image input apparatus outputs, at least, the control points to the information processing apparatus.

A non-transitory computer readable medium storing a control program that causes an image input apparatus to perform a method comprising:

• outputting control points that, in combination with an interpolation operation, generate a characteristics curve for defining conversion characteristics of a look-up table to an external device from the image input apparatus through a communication interface that communicates with the external device, when there is a request from the external device to output information related to the look-up table;
• inputting the control points and the look-up table from the external device through the communication interface;
• and
• processing the input image with reference to the inputted look-up table by an image processing device.

A non-transitory computer readable medium storing a control program that causes an information processing apparatus to perform a method comprising:

• inputting control points from an image processing device that performs image processing on an input image by referencing a look-up table through a communication interface that communicates with the image processing device;
• generating an adjusted control point and the look-up table by applying an interpolation operation to a plurality of control points, based on instructions of adjustments of the control point from a user;
• and
• outputting the adjusted control point and the generated look-up table to the image processing device through the communication interface.