wd / diffusers /tests /pipelines /paint_by_example /test_paint_by_example.py

Epoch 0

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# coding=utf-8
# Copyright 2024 HuggingFace Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import gc
import random
import unittest

import numpy as np
import torch
from PIL import Image
from transformers import CLIPImageProcessor, CLIPVisionConfig

from diffusers import AutoencoderKL, PaintByExamplePipeline, PNDMScheduler, UNet2DConditionModel
from diffusers.pipelines.paint_by_example import PaintByExampleImageEncoder
from diffusers.utils.testing_utils import (
    enable_full_determinism,
    floats_tensor,
    load_image,
    nightly,
    require_torch_gpu,
    torch_device,
)

from ..pipeline_params import IMAGE_GUIDED_IMAGE_INPAINTING_BATCH_PARAMS, IMAGE_GUIDED_IMAGE_INPAINTING_PARAMS
from ..test_pipelines_common import PipelineTesterMixin


enable_full_determinism()


class PaintByExamplePipelineFastTests(PipelineTesterMixin, unittest.TestCase):
    pipeline_class = PaintByExamplePipeline
    params = IMAGE_GUIDED_IMAGE_INPAINTING_PARAMS
    batch_params = IMAGE_GUIDED_IMAGE_INPAINTING_BATCH_PARAMS
    image_params = frozenset([])  # TO_DO: update the image_prams once refactored VaeImageProcessor.preprocess

    def get_dummy_components(self):
        torch.manual_seed(0)
        unet = UNet2DConditionModel(
            block_out_channels=(32, 64),
            layers_per_block=2,
            sample_size=32,
            in_channels=9,
            out_channels=4,
            down_block_types=("DownBlock2D", "CrossAttnDownBlock2D"),
            up_block_types=("CrossAttnUpBlock2D", "UpBlock2D"),
            cross_attention_dim=32,
        )
        scheduler = PNDMScheduler(skip_prk_steps=True)
        torch.manual_seed(0)
        vae = AutoencoderKL(
            block_out_channels=[32, 64],
            in_channels=3,
            out_channels=3,
            down_block_types=["DownEncoderBlock2D", "DownEncoderBlock2D"],
            up_block_types=["UpDecoderBlock2D", "UpDecoderBlock2D"],
            latent_channels=4,
        )
        torch.manual_seed(0)
        config = CLIPVisionConfig(
            hidden_size=32,
            projection_dim=32,
            intermediate_size=37,
            layer_norm_eps=1e-05,
            num_attention_heads=4,
            num_hidden_layers=5,
            image_size=32,
            patch_size=4,
        )
        image_encoder = PaintByExampleImageEncoder(config, proj_size=32)
        feature_extractor = CLIPImageProcessor(crop_size=32, size=32)

        components = {
            "unet": unet,
            "scheduler": scheduler,
            "vae": vae,
            "image_encoder": image_encoder,
            "safety_checker": None,
            "feature_extractor": feature_extractor,
        }
        return components

    def convert_to_pt(self, image):
        image = np.array(image.convert("RGB"))
        image = image[None].transpose(0, 3, 1, 2)
        image = torch.from_numpy(image).to(dtype=torch.float32) / 127.5 - 1.0
        return image

    def get_dummy_inputs(self, device="cpu", seed=0):
        # TODO: use tensor inputs instead of PIL, this is here just to leave the old expected_slices untouched
        image = floats_tensor((1, 3, 32, 32), rng=random.Random(seed)).to(device)
        image = image.cpu().permute(0, 2, 3, 1)[0]
        init_image = Image.fromarray(np.uint8(image)).convert("RGB").resize((64, 64))
        mask_image = Image.fromarray(np.uint8(image + 4)).convert("RGB").resize((64, 64))
        example_image = Image.fromarray(np.uint8(image)).convert("RGB").resize((32, 32))

        if str(device).startswith("mps"):
            generator = torch.manual_seed(seed)
        else:
            generator = torch.Generator(device=device).manual_seed(seed)
        inputs = {
            "example_image": example_image,
            "image": init_image,
            "mask_image": mask_image,
            "generator": generator,
            "num_inference_steps": 2,
            "guidance_scale": 6.0,
            "output_type": "np",
        }
        return inputs

    def test_paint_by_example_inpaint(self):
        components = self.get_dummy_components()

        # make sure here that pndm scheduler skips prk
        pipe = PaintByExamplePipeline(**components)
        pipe = pipe.to("cpu")
        pipe.set_progress_bar_config(disable=None)

        inputs = self.get_dummy_inputs()
        output = pipe(**inputs)
        image = output.images

        image_slice = image[0, -3:, -3:, -1]

        assert image.shape == (1, 64, 64, 3)
        expected_slice = np.array([0.4686, 0.5687, 0.4007, 0.5218, 0.5741, 0.4482, 0.4940, 0.4629, 0.4503])

        assert np.abs(image_slice.flatten() - expected_slice).max() < 1e-2

    def test_paint_by_example_image_tensor(self):
        device = "cpu"
        inputs = self.get_dummy_inputs()
        inputs.pop("mask_image")
        image = self.convert_to_pt(inputs.pop("image"))
        mask_image = image.clamp(0, 1) / 2

        # make sure here that pndm scheduler skips prk
        pipe = PaintByExamplePipeline(**self.get_dummy_components())
        pipe = pipe.to(device)
        pipe.set_progress_bar_config(disable=None)

        output = pipe(image=image, mask_image=mask_image[:, 0], **inputs)
        out_1 = output.images

        image = image.cpu().permute(0, 2, 3, 1)[0]
        mask_image = mask_image.cpu().permute(0, 2, 3, 1)[0]

        image = Image.fromarray(np.uint8(image)).convert("RGB")
        mask_image = Image.fromarray(np.uint8(mask_image)).convert("RGB")

        output = pipe(**self.get_dummy_inputs())
        out_2 = output.images

        assert out_1.shape == (1, 64, 64, 3)
        assert np.abs(out_1.flatten() - out_2.flatten()).max() < 5e-2

    def test_inference_batch_single_identical(self):
        super().test_inference_batch_single_identical(expected_max_diff=3e-3)


@nightly
@require_torch_gpu
class PaintByExamplePipelineIntegrationTests(unittest.TestCase):
    def tearDown(self):
        # clean up the VRAM after each test
        super().tearDown()
        gc.collect()
        torch.cuda.empty_cache()

    def test_paint_by_example(self):
        # make sure here that pndm scheduler skips prk
        init_image = load_image(
            "https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main"
            "/paint_by_example/dog_in_bucket.png"
        )
        mask_image = load_image(
            "https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main"
            "/paint_by_example/mask.png"
        )
        example_image = load_image(
            "https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main"
            "/paint_by_example/panda.jpg"
        )

        pipe = PaintByExamplePipeline.from_pretrained("Fantasy-Studio/Paint-by-Example")
        pipe = pipe.to(torch_device)
        pipe.set_progress_bar_config(disable=None)

        generator = torch.manual_seed(321)
        output = pipe(
            image=init_image,
            mask_image=mask_image,
            example_image=example_image,
            generator=generator,
            guidance_scale=5.0,
            num_inference_steps=50,
            output_type="np",
        )

        image = output.images

        image_slice = image[0, -3:, -3:, -1]

        assert image.shape == (1, 512, 512, 3)
        expected_slice = np.array([0.4834, 0.4811, 0.4874, 0.5122, 0.5081, 0.5144, 0.5291, 0.5290, 0.5374])

        assert np.abs(image_slice.flatten() - expected_slice).max() < 1e-2

	# coding=utf-8
	# Copyright 2024 HuggingFace Inc.
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	import gc
	import random
	import unittest

	import numpy as np
	import torch
	from PIL import Image
	from transformers import CLIPImageProcessor, CLIPVisionConfig

	from diffusers import AutoencoderKL, PaintByExamplePipeline, PNDMScheduler, UNet2DConditionModel
	from diffusers.pipelines.paint_by_example import PaintByExampleImageEncoder
	from diffusers.utils.testing_utils import (
	enable_full_determinism,
	floats_tensor,
	load_image,
	nightly,
	require_torch_gpu,
	torch_device,
	)

	from ..pipeline_params import IMAGE_GUIDED_IMAGE_INPAINTING_BATCH_PARAMS, IMAGE_GUIDED_IMAGE_INPAINTING_PARAMS
	from ..test_pipelines_common import PipelineTesterMixin


	enable_full_determinism()


	class PaintByExamplePipelineFastTests(PipelineTesterMixin, unittest.TestCase):
	pipeline_class = PaintByExamplePipeline
	params = IMAGE_GUIDED_IMAGE_INPAINTING_PARAMS
	batch_params = IMAGE_GUIDED_IMAGE_INPAINTING_BATCH_PARAMS
	image_params = frozenset([]) # TO_DO: update the image_prams once refactored VaeImageProcessor.preprocess

	def get_dummy_components(self):
	torch.manual_seed(0)
	unet = UNet2DConditionModel(
	block_out_channels=(32, 64),
	layers_per_block=2,
	sample_size=32,
	in_channels=9,
	out_channels=4,
	down_block_types=("DownBlock2D", "CrossAttnDownBlock2D"),
	up_block_types=("CrossAttnUpBlock2D", "UpBlock2D"),
	cross_attention_dim=32,
	)
	scheduler = PNDMScheduler(skip_prk_steps=True)
	torch.manual_seed(0)
	vae = AutoencoderKL(
	block_out_channels=[32, 64],
	in_channels=3,
	out_channels=3,
	down_block_types=["DownEncoderBlock2D", "DownEncoderBlock2D"],
	up_block_types=["UpDecoderBlock2D", "UpDecoderBlock2D"],
	latent_channels=4,
	)
	torch.manual_seed(0)
	config = CLIPVisionConfig(
	hidden_size=32,
	projection_dim=32,
	intermediate_size=37,
	layer_norm_eps=1e-05,
	num_attention_heads=4,
	num_hidden_layers=5,
	image_size=32,
	patch_size=4,
	)
	image_encoder = PaintByExampleImageEncoder(config, proj_size=32)
	feature_extractor = CLIPImageProcessor(crop_size=32, size=32)

	components = {
	"unet": unet,
	"scheduler": scheduler,
	"vae": vae,
	"image_encoder": image_encoder,
	"safety_checker": None,
	"feature_extractor": feature_extractor,
	}
	return components

	def convert_to_pt(self, image):
	image = np.array(image.convert("RGB"))
	image = image[None].transpose(0, 3, 1, 2)
	image = torch.from_numpy(image).to(dtype=torch.float32) / 127.5 - 1.0
	return image

	def get_dummy_inputs(self, device="cpu", seed=0):
	# TODO: use tensor inputs instead of PIL, this is here just to leave the old expected_slices untouched
	image = floats_tensor((1, 3, 32, 32), rng=random.Random(seed)).to(device)
	image = image.cpu().permute(0, 2, 3, 1)[0]
	init_image = Image.fromarray(np.uint8(image)).convert("RGB").resize((64, 64))
	mask_image = Image.fromarray(np.uint8(image + 4)).convert("RGB").resize((64, 64))
	example_image = Image.fromarray(np.uint8(image)).convert("RGB").resize((32, 32))

	if str(device).startswith("mps"):
	generator = torch.manual_seed(seed)
	else:
	generator = torch.Generator(device=device).manual_seed(seed)
	inputs = {
	"example_image": example_image,
	"image": init_image,
	"mask_image": mask_image,
	"generator": generator,
	"num_inference_steps": 2,
	"guidance_scale": 6.0,
	"output_type": "np",
	}
	return inputs

	def test_paint_by_example_inpaint(self):
	components = self.get_dummy_components()

	# make sure here that pndm scheduler skips prk
	pipe = PaintByExamplePipeline(**components)
	pipe = pipe.to("cpu")
	pipe.set_progress_bar_config(disable=None)

	inputs = self.get_dummy_inputs()
	output = pipe(**inputs)
	image = output.images

	image_slice = image[0, -3:, -3:, -1]

	assert image.shape == (1, 64, 64, 3)
	expected_slice = np.array([0.4686, 0.5687, 0.4007, 0.5218, 0.5741, 0.4482, 0.4940, 0.4629, 0.4503])

	assert np.abs(image_slice.flatten() - expected_slice).max() < 1e-2

	def test_paint_by_example_image_tensor(self):
	device = "cpu"
	inputs = self.get_dummy_inputs()
	inputs.pop("mask_image")
	image = self.convert_to_pt(inputs.pop("image"))
	mask_image = image.clamp(0, 1) / 2

	# make sure here that pndm scheduler skips prk
	pipe = PaintByExamplePipeline(**self.get_dummy_components())
	pipe = pipe.to(device)
	pipe.set_progress_bar_config(disable=None)

	output = pipe(image=image, mask_image=mask_image[:, 0], **inputs)
	out_1 = output.images

	image = image.cpu().permute(0, 2, 3, 1)[0]
	mask_image = mask_image.cpu().permute(0, 2, 3, 1)[0]

	image = Image.fromarray(np.uint8(image)).convert("RGB")
	mask_image = Image.fromarray(np.uint8(mask_image)).convert("RGB")

	output = pipe(**self.get_dummy_inputs())
	out_2 = output.images

	assert out_1.shape == (1, 64, 64, 3)
	assert np.abs(out_1.flatten() - out_2.flatten()).max() < 5e-2

	def test_inference_batch_single_identical(self):
	super().test_inference_batch_single_identical(expected_max_diff=3e-3)


	@nightly
	@require_torch_gpu
	class PaintByExamplePipelineIntegrationTests(unittest.TestCase):
	def tearDown(self):
	# clean up the VRAM after each test
	super().tearDown()
	gc.collect()
	torch.cuda.empty_cache()

	def test_paint_by_example(self):
	# make sure here that pndm scheduler skips prk
	init_image = load_image(
	"https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main"
	"/paint_by_example/dog_in_bucket.png"
	)
	mask_image = load_image(
	"https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main"
	"/paint_by_example/mask.png"
	)
	example_image = load_image(
	"https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main"
	"/paint_by_example/panda.jpg"
	)

	pipe = PaintByExamplePipeline.from_pretrained("Fantasy-Studio/Paint-by-Example")
	pipe = pipe.to(torch_device)
	pipe.set_progress_bar_config(disable=None)

	generator = torch.manual_seed(321)
	output = pipe(
	image=init_image,
	mask_image=mask_image,
	example_image=example_image,
	generator=generator,
	guidance_scale=5.0,
	num_inference_steps=50,
	output_type="np",
	)

	image = output.images

	image_slice = image[0, -3:, -3:, -1]

	assert image.shape == (1, 512, 512, 3)
	expected_slice = np.array([0.4834, 0.4811, 0.4874, 0.5122, 0.5081, 0.5144, 0.5291, 0.5290, 0.5374])

	assert np.abs(image_slice.flatten() - expected_slice).max() < 1e-2