With the development of computer software technology, computer image processing software has become increasingly significant in the public art design process. It can help with graphic design inventiveness and color presentation, as well as improve the aesthetics of public art design. This study aims to analyze the use of digital image synthesis and visual sensing techniques in public art design, as well as to use Dongba paintings, which reflects Chinese culture, as image fusion research objects. The Dongba painting’s line drawing is modeled and drawn, and an element library is created. The characteristic information of Dongba paintings is extracted using line integration convolution (LIC) algorithm. The background texture elements of the image are fused using image quilting texture’s improved synthesis algorithm. To improve the image effect of the linked Dongba paintings, a local color transfer algorithm based on color transfer rights is presented. The results show that the optimized synthesis algorithm of image quilting textures can achieve the same texture synthesis effect as the original algorithm. The method can meet the needs of real-world applications while also significantly improving the original technique’s performance. The synthesis time is reduced by 87.67%, and the image recognition accuracy of the local color transfer algorithm reaches 88.9%. Compared with other algorithms, the recognition accuracy is improved by 6.4%. The proposed digital image synthesis technique can create good images with different foreground and backdrop combinations and can provide a diverse visual expression. This contributes to public art’s visual production.
The intent of this research article is the analysis of application of digital image technology and visual sensing technology in public art design. The specific forms of public art design are studied. A series of studies on the public art form of live performance is carried out combined with the principles of advanced computer technology such as digital imaging, artificial intelligence, and visual sensing technology. An analysis method based on attention-satisfaction for the Return to the Three Gorges is put forward and some research results are obtained. The results show that the combination of live tourism performance and digital image technology creates endless possibilities for live tourism performance through technical means and artistic charm, but there are also some disadvantages. The survey results about the Return to the Three Gorges show that the proportion of tourists who choose “greatly different from expectations” and “fail to meet expectations” has reached 41.9%. And 45.3% of tourists choose the “very unwilling” and “unwilling” options in terms of willingness to revisit. It reveals that although the integration of science and technology and art has great charm, there is still much room for improvement, especially the homogenization of content and form, which needs further research.
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