Update handler.py
Browse files- handler.py +54 -54
handler.py
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import requests
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import torch
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from PIL import Image
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from transformers import AutoProcessor, AutoModelForCausalLM
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class EndpointHandler():
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def __init__(self, path=""):
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device = "cuda:0" if torch.cuda.is_available() else "cpu"
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torch_dtype = torch.float16 if torch.cuda.is_available() else torch.float32
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model = AutoModelForCausalLM.from_pretrained("microsoft/Florence-2-large", torch_dtype=torch_dtype, trust_remote_code=True).to(device)
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processor = AutoProcessor.from_pretrained("microsoft/Florence-2-large", trust_remote_code=True)
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def predict_image(self, url, prompt):
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url = "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/transformers/tasks/car.jpg?download=true"
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image = Image.open(requests.get(url, stream=True).raw)
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inputs = processor(text=prompt, images=image, return_tensors="pt").to(device, torch_dtype)
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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=4096,
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num_beams=3,
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do_sample=False
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)
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generated_text = processor.batch_decode(generated_ids, skip_special_tokens=False)[0]
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parsed_answer = processor.post_process_generation(generated_text, task="<OD>", image_size=(image.width, image.height))
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return parsed_answer
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def __call__(self, event):
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if "url" not in event:
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return {
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"statusCode": 400,
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"body": json.dumps("Error: Please provide an 'url' parameter."),
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}
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if "prompt" not in event:
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return {
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"statusCode": 400,
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"body": json.dumps("Error: Please provide an 'prompt' parameter."),
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}
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url = event["url"]
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prompt = event["prompt"]
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parsed_answer = self.predict_image(self, url, prompt)
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return {
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"statusCode": 200,
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"body": json.dumps(parsed_answer),
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}
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import requests
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import json
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import torch
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from PIL import Image
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from transformers import AutoProcessor, AutoModelForCausalLM
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class EndpointHandler():
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def __init__(self, path=""):
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device = "cuda:0" if torch.cuda.is_available() else "cpu"
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torch_dtype = torch.float16 if torch.cuda.is_available() else torch.float32
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model = AutoModelForCausalLM.from_pretrained("microsoft/Florence-2-large", torch_dtype=torch_dtype, trust_remote_code=True).to(device)
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processor = AutoProcessor.from_pretrained("microsoft/Florence-2-large", trust_remote_code=True)
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def predict_image(self, url, prompt):
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url = "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/transformers/tasks/car.jpg?download=true"
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image = Image.open(requests.get(url, stream=True).raw)
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inputs = processor(text=prompt, images=image, return_tensors="pt").to(device, torch_dtype)
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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=4096,
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num_beams=3,
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do_sample=False
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)
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generated_text = processor.batch_decode(generated_ids, skip_special_tokens=False)[0]
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parsed_answer = processor.post_process_generation(generated_text, task="<OD>", image_size=(image.width, image.height))
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return parsed_answer
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def __call__(self, event):
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if "url" not in event:
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return {
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"statusCode": 400,
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"body": json.dumps("Error: Please provide an 'url' parameter."),
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}
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if "prompt" not in event:
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return {
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"statusCode": 400,
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"body": json.dumps("Error: Please provide an 'prompt' parameter."),
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}
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url = event["url"]
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prompt = event["prompt"]
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parsed_answer = self.predict_image(self, url, prompt)
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return {
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"statusCode": 200,
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"body": json.dumps(parsed_answer),
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}
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