Research on Computer Algorithm for Drawing Pencil Drawing of Cold Landscape Based on Improved Neural Network Algorithm

In order to face the cold landscape image, the pencil sketch image is drawn by computer algorithm. This article uses an improved neural network to complete the above process. First, we first propose a pencil drawing image generation method based on multi-level visual saliency maps. Subsequently, the corresponding stroke generation, tone mapping and texture synthesis methods are proposed to form an automatic pencil drawing generation framework, which has universal practical significance. Finally, we improved the cold landscape pencil sketch simulation method based on line integral convolution, and proposed a A new mixed noise model that replaces the random binary white noise used in the traditional pencil sketch simulation method based on line integral convolution, and also proposes a new objective evaluation measure to evaluate different noise models; experimental results It shows that the image generated by the method proposed in this paper is more layered and artistic, and closer to the painter’s paintings. Experiments show that the composite frame obtained by this method can quickly convert the photo into a pencil drawing artistic style image, and the effect is vivid and lifelike.