Method and device for adjusting white balance and storage medium

A device for adjusting white balance, the device being applied to a terminal comprising at least two cameras of different types and the device comprising:

• at least one processor executing computer readable instructions to implement a plurality of modules comprising:
• a controlling module configured to determine whether a present capturing environmental parameter satisfies a first predetermined condition while a first camera of the at least two cameras is performing a capturing operation, and to pre-start a second camera of the at least two cameras while an image captured by the first camera is being displayed on a display of the terminal;
• a first determination module configured to determine a target white balance gain value corresponding to the second camera according to an image presently captured by the second camera;
• an adjusting module configured to, after the second camera is started, adjust white balance on the image captured by the second camera according to the target white balance gain value;
• and
• a second determination module configured to determine the first predetermined condition according to a type of the second camera.

A non-transitory computer-readable storage medium having stored thereon a computer program that when executed by a processor, performs the method for adjusting white balance, the method comprising:

• determining whether a present capturing environmental parameter satisfies a first predetermined condition while a first camera of the at least two cameras is performing a capturing operation;
• responsive to a determination that the present capturing environmental parameter satisfies the first predetermined condition, pre-starting a second camera of the at least two cameras while an image captured by the first camera is being displayed on a display of the terminal;
• determining a target white balance gain value corresponding to the second camera according to an image presently captured by the second camera;
• and after the second camera is started, adjusting the white balance on the image captured by the second camera according to the target white balance gain value;
• the method further comprising:
• before determining whether the present capturing environmental parameter satisfies the first predetermined condition, determining the first predetermined condition according to a type of the second camera.