Local Method to Remove Google SynthID Watermark: Image-to-Image Model Repainting Technique

This article shares a localized method for removing Google SynthID’s invisible watermark. By using an img2img model to repaint the image and adjusting the denoise parameter to 0.2, the watermark can be effectively removed while preserving the original image content. The author provides a ComfyUI workflow link for readers to implement the technique. This method supports completely local processing without requiring an internet connection, emphasizing its use for learning and research purposes. The article details the basic principles of SynthID watermark technology and explains how to remove the watermark through image repainting techniques. The author emphasizes that this is not the optimal method but provides a practical workflow. The content includes before-and-after comparisons and invites community discussion on optimization solutions. A disclaimer reminds readers to use this for learning and research only, avoiding misuse. This sharing is of significant reference value for researchers focused on AI-generated content security.