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chflame163-ComfyUI_LayerSty…/py/gemini.py
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Python

# layerstyle advance
import io
from .imagefunc import *
def is_only_digits_and_spaces(s:str) -> bool:
return bool(re.fullmatch(r'[0-9\s]*', s))
class LS_GeminiNode:
CATEGORY = '😺dzNodes/LayerUtility'
FUNCTION = "run_gemini"
RETURN_TYPES = ("STRING",)
RETURN_NAMES = ("text",)
OUTPUT_IS_LIST = (True,)
def __init__(self):
self.NODE_NAME = 'Gemini'
@classmethod
def INPUT_TYPES(self):
gemini_model_list = [
"gemini-1.5-flash",
"gemini-1.5-pro",
"gemini-1.5-flash-8b",
"gemini-2.0-flash-exp",
"learnlm-1.5-pro-experimental"]
language_list = ['en', 'zh-CN']
return {
"required": {
"model": (gemini_model_list,),
"max_output_tokens": ("INT", {"default": 4096, "min": 1, "max": 8192, "step": 1}),
"temperature": ("FLOAT", {"default": 0.5, "min": 0, "max": 2, "step": 0.1}),
"words_limit": ("INT", {"default": 200, "min": 8, "max": 2048, "step": 1}),
"response_language": (language_list,),
"system_prompt": ("STRING",
{"default": "You are creating a prompt for Stable Diffusion to generate an image.",
"multiline": False}),
"user_prompt": ("STRING", {
"default": "Generate a prompt about a girl.",
"multiline": True}),
},
"optional": {
"image_1": ("IMAGE",),
"image_2": ("IMAGE",),
}
}
def run_gemini(self, model, system_prompt, user_prompt, max_output_tokens, temperature,
words_limit, response_language, image_1=None, image_2=None):
import google.generativeai as genai
ret_texts = []
g_model = genai.GenerativeModel(model,
generation_config=gemini_generate_config,
safety_settings=gemini_safety_settings)
g_cfg = genai.GenerationConfig(temperature=temperature,
max_output_tokens=max_output_tokens)
genai.configure(api_key=get_api_key('google_api_key'), transport='rest')
prompt = {
"USER_INPUT":user_prompt,
"action": f"{system_prompt}\n"
f"Follow the USER_INPUT to complete task, keep response length between {int(words_limit * 0.8)} to {int(words_limit * 1.2)} words.",
"output_format": {
"content": f"Only return the final result, not include any unnecessary content.",
"language": response_language,
}
}
prompt = json.dumps(prompt)
log(f"{self.NODE_NAME}: Request to {model}...")
if image_1 is not None and image_2 is not None:
for index,img in enumerate(image_1):
_image1 = tensor2pil(img.unsqueeze(0)).convert('RGB')
_image2 = tensor2pil(image_2[index].unsqueeze(0)).convert('RGB') if index < len(image_2) else tensor2pil(image_2[-1].unsqueeze(0)).convert('RGB')
response = g_model.generate_content([prompt, _image1, _image2], generation_config=g_cfg)
ret_text = response.text
log(f"{self.NODE_NAME}: Gemini response is:\n\033[1;36m{ret_text}\033[m")
ret_texts.append(ret_text)
elif (image_1 is not None and image_2 is None) or (image_2 is not None and image_1 is None):
_imgs = image_1 if image_1 is not None else image_2
for img in _imgs:
_image = tensor2pil(img.unsqueeze(0)).convert('RGB')
response = g_model.generate_content([prompt, _image], generation_config=g_cfg)
ret_text = response.text
log(f"{self.NODE_NAME}: Gemini response is:\n\033[1;36m{ret_text}\033[m")
ret_texts.append(ret_text)
else:
response = g_model.generate_content(prompt, generation_config=g_cfg)
ret_text = response.text
log(f"{self.NODE_NAME}: Gemini response is:\n\033[1;36m{ret_text}\033[m")
ret_texts.append(ret_text)
return (ret_texts,)
class LS_GeminiNode_V2:
CATEGORY = '😺dzNodes/LayerUtility'
FUNCTION = "run_gemini_v2"
RETURN_TYPES = ("STRING",)
RETURN_NAMES = ("text",)
OUTPUT_IS_LIST = (True,)
def __init__(self):
self.NODE_NAME = 'GeminiV2'
@classmethod
def INPUT_TYPES(self):
gemini_model_list = [
"gemini-2.0-flash-lite",
"gemini-2.0-flash",
"gemini-2.5-pro-exp-03-25",
]
language_list = ['en', 'zh-CN']
return {
"required": {
"model": (gemini_model_list,),
"max_output_tokens": ("INT", {"default": 4096, "min": 1, "max": 8192, "step": 1}),
"temperature": ("FLOAT", {"default": 0.5, "min": 0, "max": 2, "step": 0.1}),
"words_limit": ("INT", {"default": 200, "min": 8, "max": 2048, "step": 1}),
"response_language": (language_list,),
"seed": ("INT", {"default": 0, "min": 0, "max": 2147483647}),
"system_prompt": ("STRING",
{"default": "You are creating a prompt for Stable Diffusion to generate an image.",
"multiline": False}),
"user_prompt": ("STRING", {
"default": "Generate a prompt about a girl.",
"multiline": True}),
},
"optional": {
"image_1": ("IMAGE",),
"image_2": ("IMAGE",),
}
}
def run_gemini_v2(self, model, system_prompt, user_prompt, max_output_tokens, temperature,
words_limit, response_language, seed, image_1=None, image_2=None):
from google import genai
from google.genai import types
ret_texts = []
client = genai.Client(api_key=get_api_key('google_api_key'))
gen_config = types.GenerateContentConfig(
safety_settings=gemini_safety_settings,
temperature=temperature,
max_output_tokens=max_output_tokens,
seed=seed
)
contents = []
prompt_text = f"USER_INPUT: {user_prompt}\n" \
f"{system_prompt}\n" \
f"Follow the USER_INPUT to complete task, Only output the positive prompt, keep response length between {int(words_limit * 0.8)} to {int(words_limit * 1.2)} words."
contents.append({"text": prompt_text})
log(f"{self.NODE_NAME}: Request to {model}...")
if image_1 is not None and image_2 is not None: # 2张图
for index,img in enumerate(image_1):
images = []
_image1 = tensor2pil(img.unsqueeze(0)).convert('RGB')
images.append(_image1)
_image2 = tensor2pil(image_2[index].unsqueeze(0)).convert('RGB') if index < len(image_2) else tensor2pil(image_2[-1].unsqueeze(0)).convert('RGB')
images.append(_image2)
for i in images:
img_byte_arr = io.BytesIO()
i.save(img_byte_arr, format='PNG')
img_byte_arr.seek(0)
image_bytes = img_byte_arr.read()
img_part = {"inline_data": {"mime_type": "image/png", "data": image_bytes}}
contents.append(img_part)
contents[0]["text"] += "\nUse these reference images as guidance."
response = client.models.generate_content(
model=model,
contents=contents,
config=gen_config
)
ret_text = response.text
log(f"{self.NODE_NAME}: Gemini response is:\n\033[1;36m{ret_text}\033[m")
ret_texts.append(ret_text)
elif (image_1 is not None and image_2 is None) or (image_2 is not None and image_1 is None): # 1张图
_imgs = image_1 if image_1 is not None else image_2
for img in _imgs:
_image = tensor2pil(img.unsqueeze(0)).convert('RGB')
img_byte_arr = io.BytesIO()
_image.save(img_byte_arr, format='PNG')
img_byte_arr.seek(0)
image_bytes = img_byte_arr.read()
img_part = {"inline_data": {"mime_type": "image/png", "data": image_bytes}}
contents.append(img_part)
contents[0]["text"] += "\nUse this reference image as guidance."
response = client.models.generate_content(
model=model,
contents=contents,
config=gen_config
)
ret_text = response.text
log(f"{self.NODE_NAME}: Gemini response is:\n\033[1;36m{ret_text}\033[m")
ret_texts.append(ret_text)
else: # 无图
response = client.models.generate_content(
model=model,
contents=contents,
config=gen_config
)
ret_text = response.text
log(f"{self.NODE_NAME}: Gemini response is:\n\033[1;36m{ret_text}\033[m")
ret_texts.append(ret_text)
return (ret_texts,)
class LS_OBJECT_DETECTOR_Gemini:
CATEGORY = '😺dzNodes/LayerMask'
FUNCTION = "run_gemini_detect"
RETURN_TYPES = ("BBOXES", "IMAGE",)
RETURN_NAMES = ("bboxes", "preview",)
# OUTPUT_IS_LIST = (True,)
def __init__(self):
self.NODE_NAME = 'GeminiDetect'
@classmethod
def INPUT_TYPES(self):
gemini_model_list = [
"gemini-1.5-flash",
"gemini-1.5-pro",
"gemini-1.5-flash-8b",
"gemini-2.0-flash-exp"
]
return {
"required": {
"image": ("IMAGE",),
"model": (gemini_model_list,),
"prompt": ("STRING", {"default": "subject"}),
},
"optional": {
}
}
def run_gemini_detect(self, image, model, prompt):
import google.generativeai as genai
ret_bboxes = []
ret_previews = []
g_model = genai.GenerativeModel(model,
generation_config=gemini_generate_config,
safety_settings=gemini_safety_settings)
genai.configure(api_key=get_api_key('google_api_key'), transport='rest')
g_prompt = f"Return a bounding box of {prompt} in this image in [ymin, xmin, ymax, xmax] format. Only return these 4 values, separated by a space, without any extra characters."
log(f"{self.NODE_NAME}: Request to {model}...")
for img in image:
_image = tensor2pil(img.unsqueeze(0)).convert('RGB')
response = g_model.generate_content([_image, g_prompt])
ret_text = response.text
if not is_only_digits_and_spaces(ret_text):
ret_bboxes.append([(-1, -1, 0, 0)])
ret_previews.append(pil2tensor(_image))
log(f"{self.NODE_NAME} no object found", message_type='warning')
continue
y1,x1,y2,x2 = [int(x) for x in ret_text.split()]
# Convert normalized coordinates to absolute coordinates
x1 = int(x1 / 1000 * _image.width)
y1 = int(y1 / 1000 * _image.height)
x2 = int(x2 / 1000 * _image.width)
y2 = int(y2 / 1000 * _image.height)
bboxes = standardize_bbox([(x1, y1, x2, y2)])
preview = draw_bounding_boxes(_image.convert("RGB"), bboxes, color="random", line_width=-1)
ret_previews.append(pil2tensor(preview))
log(f"{self.NODE_NAME} found {len(bboxes)} object(s)", message_type='info')
ret_bboxes.append(bboxes)
return (ret_bboxes, torch.cat(ret_previews, dim=0),)
class LS_OBJECT_DETECTOR_Gemini_V2:
CATEGORY = '😺dzNodes/LayerMask'
FUNCTION = "run_gemini_detect_v2"
RETURN_TYPES = ("BBOXES", "IMAGE",)
RETURN_NAMES = ("bboxes", "preview",)
# OUTPUT_IS_LIST = (True,)
def __init__(self):
self.NODE_NAME = 'GeminiDetectV2'
@classmethod
def INPUT_TYPES(self):
gemini_model_list = [
"gemini-2.5-pro-exp-03-25",
"gemini-1.5-pro",
]
return {
"required": {
"image": ("IMAGE",),
"model": (gemini_model_list,),
"prompt": ("STRING", {"default": "subject"}),
},
"optional": {
}
}
def run_gemini_detect_v2(self, image, model, prompt):
from google import genai
from google.genai import types
ret_bboxes = []
ret_previews = []
client = genai.Client(api_key=get_api_key('google_api_key'))
gen_config = types.GenerateContentConfig(
safety_settings=gemini_safety_settings,
)
contents = []
prompt_text = f"Return a bounding box of {prompt} in this image in [ymin, xmin, ymax, xmax] format. Only return these 4 values, separated by a space, without any extra characters."
contents.append({"text": prompt_text})
log(f"{self.NODE_NAME}: Request to {model}...")
for img in image:
_image = tensor2pil(img.unsqueeze(0)).convert('RGB')
img_byte_arr = io.BytesIO()
_image.save(img_byte_arr, format='PNG')
img_byte_arr.seek(0)
image_bytes = img_byte_arr.read()
img_part = {"inline_data": {"mime_type": "image/png", "data": image_bytes}}
contents.append(img_part)
# contents[0]["text"] += f"\nUse this image as find {prompt}'s bounding box."
response = client.models.generate_content(
model=model,
contents=contents,
config=gen_config
)
ret_text = response.text
if not is_only_digits_and_spaces(ret_text):
ret_bboxes.append([(-1, -1, 0, 0)])
ret_previews.append(pil2tensor(_image))
log(f"{self.NODE_NAME} no object found", message_type='warning')
continue
y1,x1,y2,x2 = [int(x) for x in ret_text.split()]
# Convert normalized coordinates to absolute coordinates
x1 = int(x1 / 1000 * _image.width)
y1 = int(y1 / 1000 * _image.height)
x2 = int(x2 / 1000 * _image.width)
y2 = int(y2 / 1000 * _image.height)
bboxes = standardize_bbox([(x1, y1, x2, y2)])
preview = draw_bounding_boxes(_image.convert("RGB"), bboxes, color="random", line_width=-1)
ret_previews.append(pil2tensor(preview))
log(f"{self.NODE_NAME} found {len(bboxes)} object(s)", message_type='info')
ret_bboxes.append(bboxes)
return (ret_bboxes, torch.cat(ret_previews, dim=0),)
class LS_Gemini_Image_Edit:
CATEGORY = '😺dzNodes/LayerUtility'
FUNCTION = "run_gemini_image_edit"
RETURN_TYPES = ("IMAGE",)
RETURN_NAMES = ("image",)
def __init__(self):
self.NODE_NAME = 'GeminiImageEdit'
@classmethod
def INPUT_TYPES(self):
gemini_model_list = [
"gemini-2.0-flash-exp-image-generation",
"gemini-2.5-flash-image-preview"
]
return {
"required": {
"image": ("IMAGE",),
"model": (gemini_model_list,),
"temperature": ("FLOAT", {"default": 0.5, "min": 0, "max": 2, "step": 0.1}),
"seed": ("INT", {"default": 0, "min": 0, "max": 2147483647}),
"user_prompt": ("STRING", {
"default": "change the background to forest",
"multiline": True}),
},
"optional": {
"image_2": ("IMAGE",),
"image_3": ("IMAGE",),
}
}
def run_gemini_image_edit(self, image, model, temperature, seed, user_prompt,
image_2=None, image_3=None):
from google import genai
from google.genai import types
ret_images = []
client = genai.Client(api_key=get_api_key('google_api_key'))
gen_config = types.GenerateContentConfig(
safety_settings=gemini_safety_settings,
temperature=temperature,
seed=seed,
response_modalities=['Text', 'Image']
)
log(f"{self.NODE_NAME}: Request to {model}...")
for idx,img in enumerate(image):
input_images = []
input_images.append(tensor2pil(img.unsqueeze(0)).convert('RGB'))
contents = []
prompt_text = f"Create a detailed image of: {user_prompt}."
contents.append({"text": prompt_text})
if image_2 is not None:
img2 = tensor2pil(image_2[idx].unsqueeze(0)).convert('RGB') if idx < len(image_2) else tensor2pil(image_2[-1].unsqueeze(0)).convert('RGB')
input_images.append(img2)
if image_3 is not None:
img3 = tensor2pil(image_3[idx].unsqueeze(0)).convert('RGB') if idx < len(image_3) else tensor2pil(image_3[-1].unsqueeze(0)).convert('RGB')
input_images.append(img3)
for i in input_images:
img_byte_arr = io.BytesIO()
i.save(img_byte_arr, format='PNG')
img_byte_arr.seek(0)
image_bytes = img_byte_arr.read()
img_part = {"inline_data": {"mime_type": "image/png", "data": image_bytes}}
contents.append(img_part)
if len(input_images) > 1:
contents[0]["text"] += f"\nBased on the first image, Use other reference image as guidance."
else:
contents[0]["text"] += f"\nBased on this image."
response = client.models.generate_content(
model=model,
contents=contents,
config=gen_config
)
for item in response.candidates[0].content.parts:
if hasattr(item, "inline_data") and item.inline_data is not None and item.inline_data.mime_type == "image/png":
image_bytes = item.inline_data.data
image_bytes = io.BytesIO(image_bytes)
image_bytes.seek(0)
ret_images.append(pil2tensor(Image.open(image_bytes)))
if len(ret_images) == 0:
log(f"{self.NODE_NAME} no image response, return original image", message_type='warning')
ret_images=image
return (ret_images)
NODE_CLASS_MAPPINGS = {
"LayerUtility: Gemini": LS_GeminiNode,
"LayerUtility: GeminiV2": LS_GeminiNode_V2,
"LayerMask: ObjectDetectorGemini": LS_OBJECT_DETECTOR_Gemini,
"LayerMask: ObjectDetectorGeminiV2": LS_OBJECT_DETECTOR_Gemini_V2,
"LayerUtility: GeminiImageEdit": LS_Gemini_Image_Edit,
}
NODE_DISPLAY_NAME_MAPPINGS = {
"LayerUtility: Gemini": "LayerUtility: Gemini(Advance)",
"LayerUtility: GeminiV2": "LayerUtility: Gemini V2(Advance)",
"LayerMask: ObjectDetectorGemini": "LayerMask: Object Detector Gemini(Advance)",
"LayerMask: ObjectDetectorGeminiV2": "LayerMask: Object Detector Gemini V2(Advance)",
"LayerUtility: GeminiImageEdit": "LayerUtility: Gemini Image Edit(Advance)",
}