Level 1G data product of DMC remote sensing mini-satellite has been processed by band registering

radiometric correction and systematically geometric correction. To meet the need of image interpretation and object geometric measuring

this paper discusses the methods to remove the noise

mosaic line and different color in DMC mini-satellite product

which will improve DMC mini\|satellite image quality. This paper analyzes their reasons and characteristics and

discusses the methods to get rid of noises and mosaic line and make the true color image map with uniform saturation. The specific illustrations is provided.