A multi-band image synchronous fusion method based on saliency

•We use CWF to decompose the image into base and detail layers, which enables the target edges of the fused image to be more clearly.•We use gamma correction for IR image salient target extraction and propose a method to calculate parameters adaptively according to the image content to make it more suitable for base layer fusion.•We propose an optimization model for synchronous fusion and noise reduction in the detail layer and solve it with the alternating direction method of multipliers (ADMM).