Dual-light image fusion method and system

The invention discloses a dual-light image fusion method and system, and the method comprises the following steps: carrying out the high and low frequency signal separation of an infrared image and a visible light image, so as to obtain a basic layer image and a detail layer image; fusing the infrared base layer image and the visible light base layer image to obtain a base layer fused image; fusing the infrared detail layer image and the visible light detail layer image to obtain a detail layer fused image; and performing weighted fusion on the base layer fusion image and the detail layer fusion image to obtain a brightness fusion image. The finally obtained fusion image not only can visually reflect the temperature of the target, but also has abundant visible light high-frequency and low-frequency information, can truly show color information of an infrared or visible light image, and accords with visual perception of people. 本发明公开了一种双光图像融合方法及系统，其包括如下步骤：对红外图像、可见光图像均进行高低频信号分离，以获得基础层图像和细节层图像；对红外基础层图像和可见光基础层图像进