In order to present in a systemwith a distal
server displaying a virtual
color image in the form of an image file comprising individual color values on its website, andwith a proximal computer connected to the
server and comprising a display unit (D), said computer displaying on its display unit (D) the virtual
color image of the
server by means of an application program,products on the display unit (D) in the most optimum colors possible, the following is proposed:[a] a
reference card (K) is held in front of the computer, said
reference card (K) comprising several differently
colored translucent reference areas (T1, T2, T3) besides a transparent or translucent area or an opening (G),[b.1] the application program then starts a routine on the server and / or on the computer, said routine firstly outputting a first shade, for example cyan, with a first of the color values, said first shade being complementary to the color, for example red, of one (T1) of the translucent reference areas (T1, T2, T3) of the
reference card (K),[b.2] the reference card (K) having that translucent reference area (T1) whose color is complementary to the first shade displayed on the display unit (D) is then held in front of said first shade, and an identifier is determined and stored for that (T1) of the translucent reference areas (T1, T2, T3) for which the shade of grey resulting from color mixture of the first shade and the translucent reference area (T1) comes closest to a shade of grey displayed on the display unit (D) and falling through the area or the opening (G),[c] the step [b.1] and the step [b.2] are repeated at least once to output a second shade, for example
magenta, of a second of the color values, said second shade being complementary to the color, for example green, of another (T2) of the translucent reference areas (T1, T2, T3) of the reference card (K), and to determine and store the identifier of said other (T2) of the translucent reference areas (T1, T2, T3),[d] the identifiers of the reference areas (T1, T2, T3) determined in the preceding steps [b.1], [b.2],[c] and stored on the server and / or on the computer are input in this order into a
color correction program started on the server and / or on the computer, and[e] for each image file sent by the server the
color correction program is used to adjust the virtual
color image for each color value included in the image file by applying the identifiers used as correction values whereby said virtual color image is displayed in colors optimized in respect of its recording conditions.