Research of the method for extract military attack targets based on two-dimensional histogram

The paper has mainly discussed extractive method to attack targets of remote sensing image. Based on two-dimensional histogram, made up of pixel gray level and its neighborhood average gray level, it has analyzed traditional method adopted Fisher criterion to extract targets. Due to inaccurateness of extract targets, then improved that draw two parallel lines along the two-dimensional histogram diagonal, partition region again and extract targets. This method has considered spatial related information of pixels each other and enhanced the identification capability, but also decreased computational time greatly.