1. A method for manufacturing a conductive film comprising: a position selecting step for selecting plural positions from among a predetermined two-dimensional image region; an image data generating step for generating image data representing the pattern of a mesh pattern based on the selected plural positions; an evaluation value calculating step for calculating an evaluation value obtained by quantifying noise characteristics of the mesh pattern based on the generated image data; an image data determining step for determining as output image data one of the image data based on the calculated evaluation value and predetermined evaluation conditions; and a forming step of outputting and forming wire a material on a substrate material based on the determined output image data to thereby manufacture the conductive film having the mesh pattern.