Display and uniformity correction

An adjusting method of an information processing system, the method comprising:

• calculating luminance data of a first color in an area of a marker in a specific position in a light emitting diode (LED) display device, wherein
• the LED display device is configured based on an arrangement of a plurality of LED modules in a shape of tiles, and
• the arrangement of the plurality of LED modules in the shape of tiles is based on a first image obtained by imaging operation of the LED display device;
• comparing the luminance data of the first color with reference luminance data of the first color;
• calculating, based on the comparison, a uniformity correction value to adjust luminance, wherein the luminance is adjusted for displaying a second image having uniformity in the LED display device;
• and
• at least one of
• executing a camera positioning process to accurately install a camera that images the LED display device at a position in front of the LED display device and at a center of a target range for which the uniformity correction value is calculated, or
• executing an arithmetic operation of subtraction of a third image, obtained by the imaging operation of the LED display device in a state in which a black image is displayed on an entire surface or in a state in which the entire surface is turned off, from a fourth image obtained by the imaging operation of the LED display device in a state in which a fifth image of a second color, different from black color, is displayed in a processing target range;
• acquiring, based on the execution of the arithmetic operation, a specific image in which only the fifth image of the second color of the LED display device remains;
• and
• limiting an area corresponding to the fifth image of the second color on the specific image as the processing target range.

A non-transitory computer-readable medium having stored thereon, computer executable instructions which, when executed by a computer, cause the computer to execute operations, the operations comprising:

• calculating luminance data of a first color in an area of a marker in a specific position in a light emitting diode (LED) display device, wherein
• the LED display device is configured based on an arrangement of a plurality of LED modules in a shape of tiles, and
• the arrangement of the plurality of LED modules in the shape of tiles is based on a first image obtained by imaging operation of the LED display device;
• comparing the luminance data of the first color with reference luminance data of the first color;
• calculating, based on the comparison, a uniformity correction value to adjust luminance, wherein the luminance is adjusted for displaying a second image having uniformity in the LED display device;
• and
• at least one of
• executing a camera positioning process to accurately install a camera that images the LED display device in a position in front of the LED display device and at a center of a target range for which the uniformity correction value is calculated, or
• executing an arithmetic operation of subtraction of a third image, obtained by the imaging operation of the LED display device in a state in which a black image is displayed on an entire surface or in a state in which the entire surface is turned off, from a fourth image obtained by the imaging operation of the LED display device in a state in which a fifth image of a second color, different from black color, is displayed in a processing target range;
• acquiring, based on the execution of the arithmetic operation, a specific image in which only the fifth image of the second color of the LED display device remains;
• and
• limiting an area corresponding to the fifth image of the second color on the specific image as the processing target range.