Research on evaluation method of image style transfer algorithm

The task of style transfer is to transfer the style of the target image to the required image. In recent years, there have been increasing studies on image style transfer. and now it is often used in animation production, software interface beautification, image expansion and the creation of a variety of styles of decorative patterns. As these algorithms are proposed, how to evaluate algorithms will become an important problem, only with evaluation can comparative analysis be carried out and algorithms can continue to develop and progress. The importance of evaluation can not be underestimated. This paper firstly systematically combs and introduces the evaluation method of algorithm from subjective and objective aspects. Subjective methods are divided into two parts: questionnaire and User Study, which mainly rely on people's subjective perception and are easily influenced by subjects. The objective method evaluates the algorithm from a more accurate perspective, mainly including relying on statistics and evaluation indicators. Secondly, this paper introduces the experiments using several evaluation methods and evaluates their effects. Finally, it points out the problems existing in the current evaluation methods to provide the direction for the follow-up research.