Overview of Image Inpainting and Forensic Technology

Table 4

Comparison of various image inpainting methods.

Method	Advantage	Disadvantage
Image editing inpainting	Widely popularized; easy to operate; easy to learn	The effect only stays at the visual level and depends on the experience of the operator; the repair speed of multiple pictures is slow.
Image synthesis inpainting	The inpainting speed is faster and the algorithm is relatively stable. The inpainting can be completed under the condition of a small number of images.	The abstraction process of information and data only stays at a shallow level; higher level features cannot be obtained. The resolution is low.
Image inpainting based on deep learning	High-level features of the image can be obtained; the method is independent and anti-interference; the image inpainting rate is higher and the effect is better.	Rely on a large amount of labeled data. The inpainting speed depends on the configuration of the device. The accuracy of the calculation results and the robustness of the method cannot be obtained at the same time. The gradient tends to be unstable.