Accurately detecting the anisotropy value and its gradual evolution is crucial for precise analysis and modeling of sheet plastic deformation. This article discusses the experimental investigation of the evolution of anisotropy coefficients in DC04 steel sheets, considering the behavior of the entire sheet surface, using the digital image correlation (DIC) method. Mechanical properties were determined through uniaxial tension tests at 45° intervals with respect to the rolling direction. Since the evolution of the sheet anisotropy is influenced by the evolutionary behavior of all points individually on its surface, a specific pattern of strain measurement points was selected within the gauge area of specimens as strain databases during uniaxial stretching. The anisotropy at various levels of equivalent strain for each point is obtained by tracking longitudinal and transverse strains at these points. Finally, the average anisotropy value for the points at each level of equivalent strain is calculated. Subsequently, the evolutionary behavior is approximated by a sixth-order polynomial through the best fit. The coefficients for r-values, as well as normal and planar anisotropy coefficients, were provided by this polynomial fit. The results demonstrate that accurate DIC analysis allows for integrated characterization of strain-dependent anisotropy functions based on surface point evolution during deformation processes. Additionally, it was observed that by applying 0.5 equivalent strain, the normal and planar anisotropy of the sheet reduced by 57 % and 84 %, respectively, indicating that with the progression of metal forming, the anisotropic properties and, consequently, the resistance to thinning of the material, are reduced.