Mobile terminal and dual color temperature compensation method

Abstract

The invention relates to the technical field of image pickup and discloses a mobile terminal and a dual color temperature compensation method. The mobile terminal comprises a processor, an RGB sensor, a dual color temperature flash lamp, a two-channel driver chip and a camera; the RGB sensor and the camera are connected to the processor, respectively; the two-channel driver chip is connected between the processor and the dual color temperature flash lamp; wherein the processor outputs a two-channel current parameter to the two-channel driver chip according to the environmental color temperature acquired by the RGB sensor; when a shooting command is received by the processor, the processor enables the two-channel driver chip and controls the camera to pick up an image. The mobile terminal is enabled to obtain relatively accurate environmental color temperature, and therefore, during shooting in dark light, the dual color temperature flash lamp is capable of outputting light mote adaptive to the environmental light and the supplementary lighting effect of the dual color temperature flash lamp is enhanced; as a result, the mobile terminal has good color rendition in shooting and then the shooting experience of a user can be enhanced.

Description

technical field [0001] The invention relates to the field of camera technology, in particular to a mobile terminal and a dual color temperature compensation method. Background technique [0002] With the development of science and technology, the use of portable camera equipment such as smart phones is becoming more and more popular, and having better image shooting effects can significantly improve the competitiveness of smart phones. Therefore, in recent years, image capturing effects of smartphones and the like have been greatly improved. [0003] In practical applications, flashes are used in many shooting scenes. The flash has also developed from the earlier monochromatic lamp to the current dual-color temperature flash. For example, on the back of some smartphones, there are two flashes installed next to the camera, one of which is a bright WLED (White Light Emitting Diode, WLED for short), which is matched with a warm amber LED light with a slightly darker brightnes...

AI Technical Summary

Problems solved by technology

However, the error of the ambient color temperature obtained by the mobile terminal through the software algorithm is relatively high, generally between 15% and 30%, resulting in a large error in the current output by the mobile phone control driver chip, and it is impossible to output accurate light that is compatible with the ambient color temperature. , which in turn reduces the fill light effect of the dual-color temperature flash, making it impossible for the mobile phone to obtain better color reproduction when shooting in a dark environment, resulting in poor shooting experience for users

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