sam2edit_lora.py

# Edit Anything trained with Stable Diffusion + ControlNet + SAM  + BLIP2
from torchvision.utils import save_image
from PIL import Image
from pytorch_lightning import seed_everything
import subprocess
from collections import OrderedDict
import re
import cv2
import einops
import gradio as gr
import numpy as np
import torch
import random
import os
import requests
from io import BytesIO
from annotator.util import resize_image, HWC3

import torch
from safetensors.torch import load_file
from collections import defaultdict
from diffusers import StableDiffusionControlNetPipeline
from diffusers import ControlNetModel, UniPCMultistepScheduler
from utils.stable_diffusion_controlnet_inpaint import StableDiffusionControlNetInpaintPipeline
# from utils.tmp import StableDiffusionControlNetInpaintPipeline
# need the latest transformers
# pip install git+https://github.com/huggingface/transformers.git
from transformers import AutoProcessor, Blip2ForConditionalGeneration

# Segment-Anything init.
# pip install git+https://github.com/facebookresearch/segment-anything.git
try:
    from segment_anything import sam_model_registry, SamAutomaticMaskGenerator
except ImportError:
    print('segment_anything not installed')
    result = subprocess.run(
        ['pip', 'install', 'git+https://github.com/facebookresearch/segment-anything.git'], check=True)
    print(f'Install segment_anything {result}')
    from segment_anything import sam_model_registry, SamAutomaticMaskGenerator
if not os.path.exists('./models/sam_vit_h_4b8939.pth'):
    result = subprocess.run(
        ['wget', 'https://dl.fbaipublicfiles.com/segment_anything/sam_vit_h_4b8939.pth', '-P', 'models'], check=True)
    print(f'Download sam_vit_h_4b8939.pth {result}')

device = "cuda" if torch.cuda.is_available() else "cpu"

config_dict = OrderedDict([
    ('LAION Pretrained(v0-4)-SD15', 'shgao/edit-anything-v0-4-sd15'),
    ('LAION Pretrained(v0-4)-SD21', 'shgao/edit-anything-v0-4-sd21'),
])


def init_sam_model():
    sam_checkpoint = "models/sam_vit_h_4b8939.pth"
    model_type = "default"
    sam = sam_model_registry[model_type](checkpoint=sam_checkpoint)
    sam.to(device=device)
    sam_generator = SamAutomaticMaskGenerator(sam)
    return sam_generator


def init_blip_processor():
    blip_processor = AutoProcessor.from_pretrained("Salesforce/blip2-opt-2.7b")
    return blip_processor


def init_blip_model():
    blip_model = Blip2ForConditionalGeneration.from_pretrained(
        "Salesforce/blip2-opt-2.7b", torch_dtype=torch.float16, device_map="auto")
    return blip_model


def get_pipeline_embeds(pipeline, prompt, negative_prompt, device):
    # https://github.com/huggingface/diffusers/issues/2136
    """ Get pipeline embeds for prompts bigger than the maxlength of the pipe
    :param pipeline:
    :param prompt:
    :param negative_prompt:
    :param device:
    :return:
    """
    max_length = pipeline.tokenizer.model_max_length

    # simple way to determine length of tokens
    count_prompt = len(re.split(r', ', prompt))
    count_negative_prompt = len(re.split(r', ', negative_prompt))

    # create the tensor based on which prompt is longer
    if count_prompt >= count_negative_prompt:
        input_ids = pipeline.tokenizer(
            prompt, return_tensors="pt", truncation=False).input_ids.to(device)
        shape_max_length = input_ids.shape[-1]
        negative_ids = pipeline.tokenizer(negative_prompt, truncation=False, padding="max_length",
                                          max_length=shape_max_length, return_tensors="pt").input_ids.to(device)
    else:
        negative_ids = pipeline.tokenizer(
            negative_prompt, return_tensors="pt", truncation=False).input_ids.to(device)
        shape_max_length = negative_ids.shape[-1]
        input_ids = pipeline.tokenizer(prompt, return_tensors="pt", truncation=False, padding="max_length",
                                       max_length=shape_max_length).input_ids.to(device)

    concat_embeds = []
    neg_embeds = []
    for i in range(0, shape_max_length, max_length):
        concat_embeds.append(pipeline.text_encoder(
            input_ids[:, i: i + max_length])[0])
        neg_embeds.append(pipeline.text_encoder(
            negative_ids[:, i: i + max_length])[0])

    return torch.cat(concat_embeds, dim=1), torch.cat(neg_embeds, dim=1)


def load_lora_weights(pipeline, checkpoint_path, multiplier, device, dtype):
    LORA_PREFIX_UNET = "lora_unet"
    LORA_PREFIX_TEXT_ENCODER = "lora_te"
    # load LoRA weight from .safetensors
    if isinstance(checkpoint_path, str):

        state_dict = load_file(checkpoint_path, device=device)

        updates = defaultdict(dict)
        for key, value in state_dict.items():
            # it is suggested to print out the key, it usually will be something like below
            # "lora_te_text_model_encoder_layers_0_self_attn_k_proj.lora_down.weight"

            layer, elem = key.split('.', 1)
            updates[layer][elem] = value

        # directly update weight in diffusers model
        for layer, elems in updates.items():

            if "text" in layer:
                layer_infos = layer.split(
                    LORA_PREFIX_TEXT_ENCODER + "_")[-1].split("_")
                curr_layer = pipeline.text_encoder
            else:
                layer_infos = layer.split(
                    LORA_PREFIX_UNET + "_")[-1].split("_")
                curr_layer = pipeline.unet

            # find the target layer
            temp_name = layer_infos.pop(0)
            while len(layer_infos) > -1:
                try:
                    curr_layer = curr_layer.__getattr__(temp_name)
                    if len(layer_infos) > 0:
                        temp_name = layer_infos.pop(0)
                    elif len(layer_infos) == 0:
                        break
                except Exception:
                    if len(temp_name) > 0:
                        temp_name += "_" + layer_infos.pop(0)
                    else:
                        temp_name = layer_infos.pop(0)

            # get elements for this layer
            weight_up = elems['lora_up.weight'].to(dtype)
            weight_down = elems['lora_down.weight'].to(dtype)
            alpha = elems['alpha']
            if alpha:
                alpha = alpha.item() / weight_up.shape[1]
            else:
                alpha = 1.0

            # update weight
            if len(weight_up.shape) == 4:
                curr_layer.weight.data += multiplier * alpha * torch.mm(weight_up.squeeze(
                    3).squeeze(2), weight_down.squeeze(3).squeeze(2)).unsqueeze(2).unsqueeze(3)
            else:
                curr_layer.weight.data += multiplier * \
                    alpha * torch.mm(weight_up, weight_down)
    else:
        for ckptpath in checkpoint_path:
            state_dict = load_file(ckptpath, device=device)

            updates = defaultdict(dict)
            for key, value in state_dict.items():
                # it is suggested to print out the key, it usually will be something like below
                # "lora_te_text_model_encoder_layers_0_self_attn_k_proj.lora_down.weight"

                layer, elem = key.split('.', 1)
                updates[layer][elem] = value

            # directly update weight in diffusers model
            for layer, elems in updates.items():
                if "text" in layer:
                    layer_infos = layer.split(
                        LORA_PREFIX_TEXT_ENCODER + "_")[-1].split("_")
                    curr_layer = pipeline.text_encoder
                else:
                    layer_infos = layer.split(
                        LORA_PREFIX_UNET + "_")[-1].split("_")
                    curr_layer = pipeline.unet

                # find the target layer
                temp_name = layer_infos.pop(0)
                while len(layer_infos) > -1:
                    try:
                        curr_layer = curr_layer.__getattr__(temp_name)
                        if len(layer_infos) > 0:
                            temp_name = layer_infos.pop(0)
                        elif len(layer_infos) == 0:
                            break
                    except Exception:
                        if len(temp_name) > 0:
                            temp_name += "_" + layer_infos.pop(0)
                        else:
                            temp_name = layer_infos.pop(0)

                # get elements for this layer
                weight_up = elems['lora_up.weight'].to(dtype)
                weight_down = elems['lora_down.weight'].to(dtype)
                alpha = elems['alpha']
                if alpha:
                    alpha = alpha.item() / weight_up.shape[1]
                else:
                    alpha = 1.0

                # update weight
                if len(weight_up.shape) == 4:
                    curr_layer.weight.data += multiplier * alpha * torch.mm(weight_up.squeeze(
                        3).squeeze(2), weight_down.squeeze(3).squeeze(2)).unsqueeze(2).unsqueeze(3)
                else:
                    curr_layer.weight.data += multiplier * \
                        alpha * torch.mm(weight_up, weight_down)
    return pipeline


def make_inpaint_condition(image, image_mask):
    # image = np.array(image.convert("RGB")).astype(np.float32) / 255.0
    image = image / 255.0
    print("img", image.max(), image.min(), image_mask.max(), image_mask.min())
    # image_mask = np.array(image_mask.convert("L"))
    assert image.shape[0:1] == image_mask.shape[0:
                                                1], "image and image_mask must have the same image size"
    image[image_mask > 128] = -1.0  # set as masked pixel
    image = np.expand_dims(image, 0).transpose(0, 3, 1, 2)
    image = torch.from_numpy(image)
    return image


def obtain_generation_model(base_model_path, lora_model_path, controlnet_path, generation_only=False, extra_inpaint=True):
    if generation_only and extra_inpaint:
        controlnet = ControlNetModel.from_pretrained(
            controlnet_path, torch_dtype=torch.float16)
        pipe = StableDiffusionControlNetPipeline.from_pretrained(
            base_model_path, controlnet=controlnet, torch_dtype=torch.float16, safety_checker=None
        )
    elif extra_inpaint:
        print("Warning: ControlNet based inpainting model only support SD1.5 for now.")
        controlnet = [
            ControlNetModel.from_pretrained(
                controlnet_path, torch_dtype=torch.float16),
            ControlNetModel.from_pretrained(
                'lllyasviel/control_v11p_sd15_inpaint', torch_dtype=torch.float16),  # inpainting controlnet
        ]
        pipe = StableDiffusionControlNetInpaintPipeline.from_pretrained(
            base_model_path, controlnet=controlnet, torch_dtype=torch.float16, safety_checker=None
        )
    else:
        controlnet = ControlNetModel.from_pretrained(
            controlnet_path, torch_dtype=torch.float16)
        pipe = StableDiffusionControlNetInpaintPipeline.from_pretrained(
            base_model_path, controlnet=controlnet, torch_dtype=torch.float16, safety_checker=None
        )
    if lora_model_path is not None:
        pipe = load_lora_weights(
            pipe, [lora_model_path], 1.0, 'cpu', torch.float32)
    # speed up diffusion process with faster scheduler and memory optimization
    pipe.scheduler = UniPCMultistepScheduler.from_config(
        pipe.scheduler.config)
    # remove following line if xformers is not installed
    pipe.enable_xformers_memory_efficient_attention()

    pipe.enable_model_cpu_offload()
    return pipe


def show_anns(anns):
    if len(anns) == 0:
        return
    sorted_anns = sorted(anns, key=(lambda x: x['area']), reverse=True)
    full_img = None

    # for ann in sorted_anns:
    for i in range(len(sorted_anns)):
        ann = anns[i]
        m = ann['segmentation']
        if full_img is None:
            full_img = np.zeros((m.shape[0], m.shape[1], 3))
            map = np.zeros((m.shape[0], m.shape[1]), dtype=np.uint16)
        map[m != 0] = i + 1
        color_mask = np.random.random((1, 3)).tolist()[0]
        full_img[m != 0] = color_mask
    full_img = full_img*255
    # anno encoding from https://github.com/LUSSeg/ImageNet-S
    res = np.zeros((map.shape[0], map.shape[1], 3))
    res[:, :, 0] = map % 256
    res[:, :, 1] = map // 256
    res.astype(np.float32)
    full_img = Image.fromarray(np.uint8(full_img))
    return full_img, res


class EditAnythingLoraModel:
    def __init__(self,
                 base_model_path='../chilloutmix_NiPrunedFp32Fix',
                 lora_model_path='../40806/mix4', use_blip=True,
                 blip_processor=None,
                 blip_model=None,
                 sam_generator=None,
                 controlmodel_name='LAION Pretrained(v0-4)-SD15',
                 # used when the base model is not an inpainting model.
                 extra_inpaint=True,
                 ):
        self.device = device
        self.use_blip = use_blip

        # Diffusion init using diffusers.
        self.default_controlnet_path = config_dict[controlmodel_name]
        self.base_model_path = base_model_path
        self.lora_model_path = lora_model_path
        self.defalut_enable_all_generate = False
        self.extra_inpaint = extra_inpaint
        self.pipe = obtain_generation_model(
            base_model_path, lora_model_path, self.default_controlnet_path, generation_only=False, extra_inpaint=extra_inpaint)

        # Segment-Anything init.
        if sam_generator is not None:
            self.sam_generator = sam_generator
        else:
            self.sam_generator = init_sam_model()

        # BLIP2 init.
        if use_blip:
            if blip_processor is not None:
                self.blip_processor = blip_processor
            else:
                self.blip_processor = init_blip_processor()

            if blip_model is not None:
                self.blip_model = blip_model
            else:
                self.blip_model = init_blip_model()

    def get_blip2_text(self, image):
        inputs = self.blip_processor(image, return_tensors="pt").to(
            self.device, torch.float16)
        generated_ids = self.blip_model.generate(**inputs, max_new_tokens=50)
        generated_text = self.blip_processor.batch_decode(
            generated_ids, skip_special_tokens=True)[0].strip()
        return generated_text

    def get_sam_control(self, image):
        masks = self.sam_generator.generate(image)
        full_img, res = show_anns(masks)
        return full_img, res

    @torch.inference_mode()
    def process(self, condition_model, source_image, enable_all_generate, mask_image, control_scale, enable_auto_prompt, prompt, a_prompt, n_prompt, num_samples, image_resolution, detect_resolution, ddim_steps, guess_mode, strength, scale, seed, eta):

        input_image = source_image["image"]
        if mask_image is None:
            if enable_all_generate != self.defalut_enable_all_generate:
                self.pipe = obtain_generation_model(
                    self.base_model_path, self.lora_model_path, config_dict[condition_model], enable_all_generate, self.extra_inpaint)
                self.defalut_enable_all_generate = enable_all_generate
            if enable_all_generate:
                print("source_image",
                      source_image["mask"].shape, input_image.shape,)
                mask_image = np.ones(
                    (input_image.shape[0], input_image.shape[1], 3))*255
            else:
                mask_image = source_image["mask"]
        if self.default_controlnet_path != config_dict[condition_model]:
            print("To Use:", config_dict[condition_model],
                  "Current:", self.default_controlnet_path)
            print("Change condition model to:", config_dict[condition_model])
            self.pipe = obtain_generation_model(
                self.base_model_path, self.lora_model_path, config_dict[condition_model], enable_all_generate, self.extra_inpaint)
            self.default_controlnet_path = config_dict[condition_model]
            torch.cuda.empty_cache()

        with torch.no_grad():
            if self.use_blip and enable_auto_prompt:
                print("Generating text:")
                blip2_prompt = self.get_blip2_text(input_image)
                print("Generated text:", blip2_prompt)
                if len(prompt) > 0:
                    prompt = blip2_prompt + ',' + prompt
                else:
                    prompt = blip2_prompt

            input_image = HWC3(input_image)

            img = resize_image(input_image, image_resolution)
            H, W, C = img.shape

            print("Generating SAM seg:")
            # the default SAM model is trained with 1024 size.
            full_segmask, detected_map = self.get_sam_control(
                resize_image(input_image, detect_resolution))

            detected_map = HWC3(detected_map.astype(np.uint8))
            detected_map = cv2.resize(
                detected_map, (W, H), interpolation=cv2.INTER_LINEAR)

            control = torch.from_numpy(
                detected_map.copy()).float().cuda()
            control = torch.stack([control for _ in range(num_samples)], dim=0)
            control = einops.rearrange(control, 'b h w c -> b c h w').clone()

            mask_image = HWC3(mask_image.astype(np.uint8))
            mask_image = cv2.resize(
                mask_image, (W, H), interpolation=cv2.INTER_LINEAR)
            if self.extra_inpaint:
                inpaint_image = make_inpaint_condition(img, mask_image)
            mask_image = Image.fromarray(mask_image)

            if seed == -1:
                seed = random.randint(0, 65535)
            seed_everything(seed)
            generator = torch.manual_seed(seed)
            postive_prompt = prompt + ', ' + a_prompt
            negative_prompt = n_prompt
            prompt_embeds, negative_prompt_embeds = get_pipeline_embeds(
                self.pipe, postive_prompt, negative_prompt, "cuda")
            prompt_embeds = torch.cat([prompt_embeds] * num_samples, dim=0)
            negative_prompt_embeds = torch.cat(
                [negative_prompt_embeds] * num_samples, dim=0)
            if enable_all_generate and self.extra_inpaint:
                print(control.shape, control_scale)
                self.pipe.safety_checker = lambda images, clip_input: (
                    images, False)
                x_samples = self.pipe(
                    prompt_embeds=prompt_embeds, negative_prompt_embeds=negative_prompt_embeds,
                    num_images_per_prompt=num_samples,
                    num_inference_steps=ddim_steps,
                    generator=generator,
                    height=H,
                    width=W,
                    image=control.type(torch.float16),
                    controlnet_conditioning_scale=float(control_scale),
                ).images
            elif self.extra_inpaint:
                x_samples = self.pipe(
                    image=img,
                    mask_image=mask_image,
                    prompt_embeds=prompt_embeds, negative_prompt_embeds=negative_prompt_embeds,
                    num_images_per_prompt=num_samples,
                    num_inference_steps=ddim_steps,
                    generator=generator,
                    controlnet_conditioning_image=[control.type(
                        torch.float16), inpaint_image.type(torch.float16)],
                    height=H,
                    width=W,
                    controlnet_conditioning_scale=(float(control_scale), 1.0),
                ).images
            else:
                x_samples = self.pipe(
                    image=img,
                    mask_image=mask_image,
                    prompt_embeds=prompt_embeds, negative_prompt_embeds=negative_prompt_embeds,
                    num_images_per_prompt=num_samples,
                    num_inference_steps=ddim_steps,
                    generator=generator,
                    controlnet_conditioning_image=control.type(torch.float16),
                    height=H,
                    width=W,
                    controlnet_conditioning_scale=float(control_scale),
                ).images

            results = [x_samples[i] for i in range(num_samples)]
        return [full_segmask, mask_image] + results, prompt

    def download_image(url):
        response = requests.get(url)
        return Image.open(BytesIO(response.content)).convert("RGB")