a plurality of pores the plurality of pores further comprises a high layer an intermediate layer and a low layer in which the three layers together forms an embossed image the present invention also relates to a method of manufacturing colored metal films the method is used to manufacture a flat image or an embossed image on a metal article the method comprises a finishing process a first coating process a color adjustment a first printing process an etching process a second coating process a second printing process a sealing process and a cleaning process application_number US 201514644179 A description fig1 is a flow diagram illustrating a method of manufacturing colored metal films with flat images according to some embodiments of the present invention in the embodiments the method comprises a finishing process a coating process color adjustments a printing process a sealing process and a cleaning process in one embodiment the exemplary metal article is an aluminum alloy in the finishing process the metal article is transferred to a polishing machine or a sander to craft a smooth surface or a hairline surface on the metal article in the coating process the metal article is subjected to anodization to coat the metal article the metal article is immersed in a 15 18 wt sulfuric acid solution for 10 30 minutes and the anodizing condition is 15 20 v and 1 2 a dm 2 after the coating process an oxide coating with a thickness about 11 16 u03bcm is formed on the metal article fig2 is a schematic diagram illustrating the plurality of pores according to some embodiments of the present invention the coating layer 2 on the metal article 1.