Verification code generation method based on image style conversion

The invention discloses a verification code generation method based on image style conversion, and the method comprises the following steps: S1, carrying out the training of a VGG model through an RMSProp algorithm, and obtaining a VGG-19 network model; s2, sending the content image to the trained VGG-19 network model, and obtaining feature map output of the content image on each layer; s3, sending the style image also to the VGG-19 network model, and obtaining feature map output of the style image on each layer; and S4, sending the feature map output of the content image on each layer and the feature map output of the style image on each layer into a trained VGG-19 network model, and obtaining a verification code through an image verification code generation algorithm. The invention is novel in structure and ingenious in conception, the generated image verification code can prove that the image verification code has the basic property of being friendly to human beings but not friendly to machines in the aspe