Abstract: The self -adaptive direction local binary operator (SD-LBP) increases the information processing of the image local region and the transition region of image texture,so that the impact of image noise reaches a minimum value.Three groups of experimental program are used to analyze the retrieval performance of the SD -LBP operator and other operators.The image retrieval results based on texture spectrum show that when the operator keeps the CS-LBP data dimensions unchanged,the SD -LBP operator has stronger robustness in the processing of image noise,and it also has obvious advantages in image retrieval efficiency and visual properties.