Method and system for calculating color fastness of textile method

A method for generating calculation parameters of color fastness of a textile, the calculation parameters comprising quantization intervals and a quantization value, and the method comprising:

• obtaining gray value ratios between a gray region and a light-color region in each pair of reference color cards in a standard gray scale for staining, thereby obtaining a plurality of standard gray scale ratios;
• wherein the light-color region corresponds to a color of the textile before dyed, and the gray region corresponds to a color of the textile after dyed;
• generating a plurality of the quantization intervals respectively corresponding to each color fastness level based on the standard gray scale ratios respectively corresponding to each pair of the reference color cards;
• and
• obtaining a gray value ratio between a dyed region and an undyed region of the textile to obtain the quantization value.