InvokeAI/invokeai/backend/restoration/base.py

class Restoration:
    def __init__(self) -> None:
        pass

    def load_face_restore_models(
        self, gfpgan_model_path="./models/gfpgan/GFPGANv1.4.pth"
    ):
        # Load GFPGAN
        gfpgan = self.load_gfpgan(gfpgan_model_path)
        if gfpgan.gfpgan_model_exists:
            print(">> GFPGAN Initialized")
        else:
            print(">> GFPGAN Disabled")
            gfpgan = None

        # Load CodeFormer
        codeformer = self.load_codeformer()
        if codeformer.codeformer_model_exists:
            print(">> CodeFormer Initialized")
        else:
            print(">> CodeFormer Disabled")
            codeformer = None

        return gfpgan, codeformer

    # Face Restore Models
    def load_gfpgan(self, gfpgan_model_path):
        from .gfpgan import GFPGAN

        return GFPGAN(gfpgan_model_path)

    def load_codeformer(self):
        from .codeformer import CodeFormerRestoration

        return CodeFormerRestoration()

    # Upscale Models
    def load_esrgan(self, esrgan_bg_tile=400):
        from .realesrgan import ESRGAN

        esrgan = ESRGAN(esrgan_bg_tile)
        print(">> ESRGAN Initialized")
        return esrgan