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import torch
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import torchvision.transforms.functional as F
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import io
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import os
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from PIL import Image
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import matplotlib.pyplot as plt
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import matplotlib.patches as patches
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from PIL import Image, ImageDraw, ImageFont
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import random
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import numpy as np
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import comfy.model_management as mm
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from comfy.utils import ProgressBar, load_torch_file
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import folder_paths
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script_directory = os.path.dirname(os.path.abspath(__file__))
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from transformers import AutoModelForCausalLM, AutoProcessor
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class DownloadAndLoadFlorence2Model:
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@classmethod
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def INPUT_TYPES(s):
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return {"required": {
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"model": (
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[
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'microsoft/Florence-2-base',
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'microsoft/Florence-2-base-ft',
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'microsoft/Florence-2-large',
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'microsoft/Florence-2-large-ft',
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],
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{
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"default": 'microsoft/Florence-2-base'
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}),
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"precision": ([ 'bf16','fp32'],
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{
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"default": 'bf16'
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}),
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},
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}
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RETURN_TYPES = ("FL2MODEL",)
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RETURN_NAMES = ("florence2_model",)
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FUNCTION = "loadmodel"
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CATEGORY = "Florence2"
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def loadmodel(self, model, precision):
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device = mm.get_torch_device()
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offload_device = mm.unet_offload_device()
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dtype = {"bf16": torch.bfloat16, "fp16": torch.float16, "fp32": torch.float32}[precision]
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model_name = model.rsplit('/', 1)[-1]
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model_path = os.path.join(folder_paths.models_dir, "LLM", model_name)
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if not os.path.exists(model_path):
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print(f"Downloading Lumina model to: {model_path}")
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from huggingface_hub import snapshot_download
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snapshot_download(repo_id=model,
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local_dir=model_path,
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local_dir_use_symlinks=False)
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model = AutoModelForCausalLM.from_pretrained(model_path, trust_remote_code=True)
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processor = AutoProcessor.from_pretrained(model_path, trust_remote_code=True)
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florence2_model = {
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'model': model,
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'processor': processor,
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}
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return (florence2_model,)
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class Florence2Run:
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@classmethod
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def INPUT_TYPES(s):
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return {
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"required": {
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"image": ("IMAGE", ),
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"florence2_model": ("FL2MODEL", ),
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"text_input": ("STRING", {"default": "", "multiline": True}),
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"task": (
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[
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'annotate',
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'dense_region_caption',
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'caption',
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'detailed_caption',
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'more_detailed_caption',
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'caption_to_phrase_grounding',
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'referring_expression_segmentation'
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],
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),
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"fill_mask": ("BOOLEAN", {"default": True}),
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},
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"optional": {
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"keep_model_loaded": ("BOOLEAN", {"default": False}),
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}
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}
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RETURN_TYPES = ("IMAGE", "MASK", "STRING",)
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RETURN_NAMES =("image", "mask", "caption",)
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FUNCTION = "encode"
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CATEGORY = "Florence2"
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def encode(self, image, text_input, florence2_model, task, fill_mask, keep_model_loaded=False):
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device = mm.get_torch_device()
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offload_device = mm.unet_offload_device()
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annotated_image_tensor = None
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mask_tensor = None
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processor = florence2_model['processor']
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model = florence2_model['model']
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model.to(device)
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colormap = ['blue','orange','green','purple','brown','pink','gray','olive','cyan','red',
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'lime','indigo','violet','aqua','magenta','coral','gold','tan','skyblue']
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if task == 'annotate':
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prompt = "<OD>"
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elif task == 'dense_region_caption':
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prompt = '<DENSE_REGION_CAPTION>'
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elif task == 'caption':
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prompt = '<CAPTION>'
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elif task == 'detailed_caption':
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prompt = '<DETAILED_CAPTION>'
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elif task == 'more_detailed_caption':
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prompt = '<MORE_DETAILED_CAPTION>'
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elif task == 'caption_to_phrase_grounding':
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prompt = '<CAPTION_TO_PHRASE_GROUNDING>'
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elif task == 'referring_expression_segmentation':
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prompt = '<REFERRING_EXPRESSION_SEGMENTATION>'
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if text_input is not None:
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prompt = prompt + text_input
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image = image.permute(0, 3, 1, 2)
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out = []
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out_masks = []
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out_results = []
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pbar = ProgressBar(len(image))
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for img in image:
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image_pil = F.to_pil_image(img)
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inputs = processor(text=prompt, images=image_pil, return_tensors="pt", do_rescale=False).to(device)
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generated_ids = model.generate(
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input_ids=inputs["input_ids"],
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pixel_values=inputs["pixel_values"],
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max_new_tokens=1024,
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do_sample=False,
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num_beams=3,
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)
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results = processor.batch_decode(generated_ids, skip_special_tokens=False)[0]
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out_results.append(results)
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if task == 'annotate' or task == 'dense_region_caption':
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parsed_answer = processor.post_process_generation(results, task="<OD>", image_size=(image_pil.width, image_pil.height))
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fig, ax = plt.subplots(figsize=(image_pil.width / 100, image_pil.height / 100), dpi=100)
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fig.subplots_adjust(left=0, right=1, top=1, bottom=0)
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ax.imshow(image_pil)
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bboxes = parsed_answer['<OD>']['bboxes']
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labels = parsed_answer['<OD>']['labels']
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# Loop through the bounding boxes and labels and add them to the plot
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for bbox, label in zip(bboxes, labels):
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# Create a Rectangle patch
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rect = patches.Rectangle(
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(bbox[0], bbox[1]), # (x,y) - lower left corner
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bbox[2] - bbox[0], # Width
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bbox[3] - bbox[1], # Height
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linewidth=1,
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edgecolor='r',
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facecolor='none',
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label=label
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)
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# Add the rectangle to the plot
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ax.add_patch(rect)
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# Add the label
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plt.text(
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bbox[0],
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bbox[1],
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label,
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color='white',
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fontsize=12,
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bbox=dict(facecolor="red", alpha=0.5)
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)
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# Remove axis and padding around the image
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ax.axis('off')
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ax.margins(0,0)
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ax.get_xaxis().set_major_locator(plt.NullLocator())
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ax.get_yaxis().set_major_locator(plt.NullLocator())
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fig.canvas.draw()
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buf = io.BytesIO()
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plt.savefig(buf, format='png', bbox_inches='tight', pad_inches=0)
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buf.seek(0)
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annotated_image_pil = Image.open(buf)
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annotated_image_tensor = F.to_tensor(annotated_image_pil)
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out_tensor = annotated_image_tensor.unsqueeze(0).permute(0, 2, 3, 1).cpu().float()
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out.append(out_tensor)
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pbar.update(1)
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plt.close(fig)
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elif task == 'referring_expression_segmentation':
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parsed_answer = processor.post_process_generation(results, task="<REFERRING_EXPRESSION_SEGMENTATION>", image_size=(image_pil.width, image_pil.height))
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width, height = image_pil.size
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# Create a new black image
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mask_image = Image.new('RGB', (width, height), 'black')
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mask_draw = ImageDraw.Draw(mask_image)
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draw = ImageDraw.Draw(image_pil)
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# Set up scale factor if needed (use 1 if not scaling)
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scale = 1
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predictions = parsed_answer['<REFERRING_EXPRESSION_SEGMENTATION>']
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# Iterate over polygons and labels
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for polygons, label in zip(predictions['polygons'], predictions['labels']):
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color = random.choice(colormap)
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fill_color = random.choice(colormap) if fill_mask else None
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for _polygon in polygons:
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_polygon = np.array(_polygon).reshape(-1, 2)
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# Clamp polygon points to image boundaries
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_polygon = np.clip(_polygon, [0, 0], [width - 1, height - 1])
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if len(_polygon) < 3:
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print('Invalid polygon:', _polygon)
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continue
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_polygon = (_polygon * scale).reshape(-1).tolist()
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# Draw the polygon
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if fill_mask:
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draw.polygon(_polygon, outline=color, fill=fill_color)
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else:
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draw.polygon(_polygon, outline=color)
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# Ensure the text is within image boundaries
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text_x, text_y = _polygon[0] + 8, _polygon[1] + 2
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text_x = min(text_x, width - 1)
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text_y = min(text_y, height - 1)
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#draw mask
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mask_draw.polygon(_polygon, outline="white", fill="white")
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mask_draw.text((text_x, text_y), label, fill="white")
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# Draw the label text
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draw.text((text_x, text_y), label, fill=color)
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image_tensor = F.to_tensor(image_pil)
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image_tensor = image_tensor.unsqueeze(0).permute(0, 2, 3, 1).cpu().float()
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out.append(image_tensor)
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mask_tensor = F.to_tensor(mask_image)
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mask_tensor = mask_tensor.unsqueeze(0).permute(0, 2, 3, 1).cpu().float()
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mask_tensor = mask_tensor.mean(dim=0, keepdim=True)
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mask_tensor = mask_tensor.repeat(1, 1, 1, 3)
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mask_tensor = mask_tensor[:, :, :, 0]
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out_masks.append(mask_tensor)
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pbar.update(1)
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out_tensor = torch.cat(out, dim=0)
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if len(out_masks) > 0:
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out_mask_tensor = torch.cat(out_masks, dim=0)
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else:
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out_mask_tensor = None
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if not keep_model_loaded:
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print("Offloading model...")
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model.to(offload_device)
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return (out_tensor, out_mask_tensor, out_results,)
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NODE_CLASS_MAPPINGS = {
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"DownloadAndLoadFlorence2Model": DownloadAndLoadFlorence2Model,
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"Florence2Run": Florence2Run,
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}
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NODE_DISPLAY_NAME_MAPPINGS = {
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"DownloadAndLoadFlorence2Model": "DownloadAndLoadFlorence2Model",
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"Florence2Run": "Florence2Run",
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}
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kijai