As the method based on pattern noise c annot deal with the image source detection in night effectively,this paper propo ses a method of detecting the source of night scene images with comprehensive texture and brightness.First,based on the nocturnal scene,there wi ll be different textures and luminances in different regions of the same picture,which will affe ct the difference of the quality of the extraction pattern.The images are divided into pieces with eq ual size according to the texture and brightness.Four cases are treated respecti vely,in which the noise extracted from complex texture regions should be suppressed by texture interference,the mode noise extr acted from regions with poor luminance conditions needs to be enhanced,for the mode noise extracted from regions with low brightness and complex texture,the interference of texture should be suppressed, while the mode noise should be enhanced at the same time.The experimental result s show that the overall recognition rate of this method is above 80% in the night scene.Compared with the traditional mode noise extraction algorithm,the accuracy of the algorithm can be enhanced by 4%－12%.