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# FAQ

1. **Q: How to select models?**<br>
A: Please refer to [docs/model_zoo.md](docs/model_zoo.md)

1. **Q: Can `face_enhance` be used for anime images/animation videos?**<br>
A: No, it can only be used for real faces. It is recommended not to use this option for anime images/animation videos to save GPU memory.

1. **Q: Error "slow_conv2d_cpu" not implemented for 'Half'**<br>
A: In order to save GPU memory consumption and speed up inference, Real-ESRGAN uses half precision (fp16) during inference by default. However, some operators for half inference are not implemented in CPU mode. You need to add **`--fp32` option** for the commands. For example, `python inference_realesrgan.py -n RealESRGAN_x4plus.pth -i inputs --fp32`.

	# FAQ

	1. Q: How to select models?<br>
	A: Please refer to [docs/model_zoo.md](docs/model_zoo.md)

	1. Q: Can `face_enhance` be used for anime images/animation videos?<br>
	A: No, it can only be used for real faces. It is recommended not to use this option for anime images/animation videos to save GPU memory.

	1. Q: Error "slow_conv2d_cpu" not implemented for 'Half'<br>
	A: In order to save GPU memory consumption and speed up inference, Real-ESRGAN uses half precision (fp16) during inference by default. However, some operators for half inference are not implemented in CPU mode. You need to add `--fp32` option for the commands. For example, `python inference_realesrgan.py -n RealESRGAN_x4plus.pth -i inputs --fp32`.