Image pickup apparatus, white balance adjustment method therefor, and program for implementing the method

A white balance adjustment method for an image pickup apparatus, comprising:

• a light emission detecting step of detecting whether light has been emitted from a light emitting device attached to the image pickup apparatus;
• a white balance adjusting step of carrying out a white balance adjustment of shot image data using a white balance correction value;
• wherein said white balance adjusting step applies a first correction value calculated based on the shot image data as the white balance correction value when said light emission detecting step detects that no light has been emitted from the light emitting device, and applies a second correction value for shooting with light emission as the white balance correction value when said light emission detecting step detects that light has been emitted from the light emitting device,
• wherein the second correction value is a value obtained by weighting the first correction value and a fourth correction value different from the first correction value for shooting with light emission stored in a memory;
• and
• a white balance photography detecting step of detecting whether a bounce flash photography has been carried out, when said light emission detecting step detects that light has been emitted from the light emitting device,
• wherein said white balance adjusting step applies a third correction value different from the second correction value as the white balance correction value, when said white balance photography detecting step detects that the bounce flash photography has been carried out,
• wherein the third correction value is a value obtained by weighting the first correction value and the fourth correction value for shooting with light emission at a first predetermined ratio.

A computer-readable medium storing a computer program for adjusting a white balance for an image pickup apparatus, the computer program comprising:

• a light emission detecting instruction for detecting whether light has been emitted from a light emitting device attached to the image pickup apparatus;
• a white balance adjusting instruction for carrying out a white balance adjustment of shot image data using a white balance correction value;
• wherein said white balance adjusting instruction includes applying a first correction value calculated based on the shot image data as the white balance correction value when said light emission detecting instruction detects that no light has been emitted from the light emitting device, and applying a second correction value for shooting with light emission as the white balance correction value when said light emission detecting instruction detects that light has been emitted from the light emitting device,
• wherein the second correction value is a value obtained by weighting the first correction value and a fourth correction value different from the first correction value for shooting with light emission stored in a memory;
• and
• a white balance photography detecting instruction for detecting whether a bounce flash photography has been carried out, when said light emission detecting instruction detects that light has been emitted from the light emitting device,
• wherein said white balance adjusting instruction includes applying a third correction value different from the second correction value as the white balance correction value, when said white balance photography detecting instructions detects that the bounce flash photography has been carried out,
• wherein the third correction value is a value obtained by weighting the first correction value and the fourth correction value for shooting with light emission at a first predetermined ratio.