Color tone correction system and color tone correction method

A color tone correction system for image determination when a component assembling position of a workpiece is determined from an image, the color tone correction system comprising:

• a reception unit configured to receive a target workpiece image obtained by photographing a target workpiece and design information of the target workpiece;
• a reference workpiece image storage unit configured to store a reference workpiece image obtained by photographing a reference workpiece;
• an image determination unit configured to determine whether or not the target workpiece is inclined more than the reference workpiece based on the received target workpiece image and the received design information;
• a calculation processing unit configured to estimate an inclination angle of the target workpiece based on the stored reference workpiece image and the target workpiece image when it is determined that the target workpiece is inclined;
• a color tone data storage unit configured to store a relationship between the inclination angle and a color tone correction value;
• an image correction unit configured to correct a color tone of the target workpiece image based on the estimated inclination angle and a color tone correction formula corresponding to the stored relationship;
• and
• an output unit configured to transmit and/or display the corrected target workpiece image.