White balance compensation method and apparatus and electronic device

An electronic device, comprising a processor, a memory, and instructions stored in the memory and capable of running on the processor, wherein when the instructions are executed by the processor, steps of a white balance compensation method are implemented, the steps comprise:

• obtaining color information of each of M first regions comprised in a first image, the first image being an image acquired by a spectral sensor;
• performing white balance compensation using a target numerical value for a second image acquired by a color sensor, and obtaining color information of each of M second regions comprised in the white-balance compensated second image, one second region corresponding to one first region;
• and
• for an i-th second region, in a case that first color information and second color information meet a preset condition, performing white balance compensation for the i-th second region according to the first color information and the second color information, wherein the first color information is color information of the i-th second region, and the second color information is color information of a first region corresponding to the i-th second region;
• wherein
• M is an integer greater than 1, and i is a positive integer less than or equal to M;
• wherein the step of obtaining color information of each of M first regions comprised in a first image comprises:
• obtaining color information of each first region according to a spectral curve of each first region.

A non-transitory readable storage medium, wherein the readable storage medium stores instructions, and when the instructions are executed by a processor, steps of a white balance compensation method are implemented, the steps comprise:

• obtaining color information of each of M first regions comprised in a first image, the first image being an image acquired by a spectral sensor;
• performing white balance compensation using a target numerical value for a second image acquired by a color sensor, and obtaining color information of each of M second regions comprised in the white-balance compensated second image, one second region corresponding to one first region;
• and
• for an i-th second region, in a case that first color information and second color information meet a preset condition, performing white balance compensation for the i-th second region according to the first color information and the second color information, wherein the first color information is color information of the i-th second region, and the second color information is color information of a first region corresponding to the i-th second region;
• wherein
• M is an integer greater than 1, and i is a positive integer less than or equal to M;
• wherein the step of obtaining color information of each of M first regions comprised in a first image comprises:
• obtaining color information of each first region according to a spectral curve of each first region.