Information processing to allow projector units to project images in cooperation

An information processing method, comprising:

• in a first information processing apparatus:
• forming a group for projecting contents data in cooperation with a plurality of second information processing apparatuses,
• wherein the first information processing apparatus include a first projection unit configured to project first image and a first imaging unit configured to shoot a subject and obtain a shot image,
• wherein the plurality of second information processing apparatuses includes a plurality of second projection units and a plurality of second imaging units;
• sharing correction information among the plurality of second information processing apparatuses belonging to the group,
• wherein the correction information relates to correction made to the first image, and a plurality of second images projected by the plurality of second projection units of the plurality of second information processing apparatuses belonging to the group, and
• wherein the correction information comprises a coefficient of color conversion matrix of representative pixels in the first image;
• and
• updating the correction information for the first information processing apparatus based on the shot image obtained by shooting the first image projected by the first projection unit and the correction information.

A first information processing apparatus, comprising:

• a group formation unit configured to form a group to project contents data in cooperation with a plurality of second information processing apparatuses;
• first projection unit configured to project first image;
• first imaging unit configured to shoot a subject and obtain a shot image,
• wherein the plurality of second information processing apparatuses includes a plurality of second projection units and a plurality of second imaging units;
• a correction information sharing unit configured to share correction information among the plurality of second information processing apparatuses that belong to the group,
• wherein the correction information relates to correction made to the first image projected by the first projection unit and a plurality of second images projected by the plurality of second projection units of the plurality of second information processing apparatuses that belong to the group formed by the group formation unit,
• wherein the correction information relates to correction made to representative pixels in the first image, and wherein the correction information includes coordinates before and after the correction of the representative pixels, gain and shift values of respective color components of the representative pixels, and a coefficient of color conversion matrix of the representative pixels;
• and
• a correction information updating unit configured to update the correction information for the first information processing apparatus based on the shot image obtained by shooting the first image projected by the first projection unit as the subject and the correction information shared by the correction information sharing unit.