An Automatic Shadow Generation Algorithm in Two-dimensional Animation Production

In order to realize shadow automatic generation in 2D animation production, an automatic shadow generation algorithm based on gray histogram feature segmentation and edge contour feature extraction is proposed, and the image processing model of 2D animation is constructed. The edge contour feature of 2D animation image is extracted, and the gray pixel value fusion and difference feature extraction are carried out in the process of shadow automatic generation by using depth learning algorithm. The shaded area of 2D animation image is calibrated by the regional grid segmentation, and the multi-scale Retinex color feature component of 2D animation image is extracted by using Radon scale transform, and the gray histogram of shadow region of 2D animation image is constructed. The simulation results show that the shadow can be generated automatically by using the algorithm, the shadow expression ability of the image and the quality of the output image are better. The normalized correlation coefficient of shadow region is high, which shows that shadow generation is effective.