renders image generation tested and fixed - all renderers ready

This commit is contained in:
ValueOn AG 2025-10-12 02:53:37 +02:00
parent df15f54f4b
commit dedee0ecda
4 changed files with 491 additions and 6 deletions

View file

@ -188,4 +188,83 @@ class AiOpenai:
except Exception as e:
logger.error(f"Error during image analysis: {str(e)}", exc_info=True)
return f"[Error during image analysis: {str(e)}]"
return f"[Error during image analysis: {str(e)}]"
async def generateImage(self, prompt: str, size: str = "1024x1024", quality: str = "standard", style: str = "vivid") -> Dict[str, Any]:
"""
Generate an image using DALL-E 3.
Args:
prompt: The text prompt for image generation
size: Image size (1024x1024, 1792x1024, or 1024x1792)
quality: Image quality (standard or hd)
style: Image style (vivid or natural)
Returns:
Dictionary with success status and image data
"""
try:
logger.debug(f"Starting image generation with prompt: '{prompt[:100]}...'")
# DALL-E 3 API endpoint
dalle_url = "https://api.openai.com/v1/images/generations"
payload = {
"model": "dall-e-3",
"prompt": prompt,
"size": size,
"quality": quality,
"style": style,
"n": 1,
"response_format": "b64_json" # Get base64 data directly instead of URLs
}
# Create a separate client for DALL-E API calls
dalle_client = httpx.AsyncClient(
timeout=120.0,
headers={
"Authorization": f"Bearer {self.apiKey}",
"Content-Type": "application/json"
}
)
response = await dalle_client.post(
dalle_url,
json=payload
)
await dalle_client.aclose()
if response.status_code != 200:
logger.error(f"DALL-E API error: {response.status_code} - {response.text}")
return {
"success": False,
"error": f"DALL-E API error: {response.status_code} - {response.text}"
}
responseJson = response.json()
if "data" in responseJson and len(responseJson["data"]) > 0:
image_data = responseJson["data"][0]["b64_json"]
logger.info(f"Successfully generated image: {len(image_data)} characters")
return {
"success": True,
"image_data": image_data,
"size": size,
"quality": quality,
"style": style
}
else:
logger.error("No image data in DALL-E response")
return {
"success": False,
"error": "No image data in DALL-E response"
}
except Exception as e:
logger.error(f"Error during image generation: {str(e)}", exc_info=True)
return {
"success": False,
"error": f"Error during image generation: {str(e)}"
}

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@ -140,6 +140,109 @@ class BaseRenderer(ABC):
alt_text = section_data.get("altText", "Image")
return base64_data, alt_text
def _render_image_section(self, section: Dict[str, Any], styles: Dict[str, Any] = None) -> Any:
"""
Render an image section. This is a base implementation that should be overridden
by format-specific renderers.
Args:
section: Image section data
styles: Optional styling information
Returns:
Format-specific image representation
"""
section_data = self._get_section_data(section)
base64_data, alt_text = self._extract_image_data(section_data)
# Base implementation returns a simple dict
# Format-specific renderers should override this method
return {
"type": "image",
"base64Data": base64_data,
"altText": alt_text,
"width": section_data.get("width", None),
"height": section_data.get("height", None),
"caption": section_data.get("caption", "")
}
def _validate_image_data(self, base64_data: str, alt_text: str) -> bool:
"""Validate image data."""
if not base64_data:
self.logger.warning("Image section has no base64 data")
return False
if not alt_text:
self.logger.warning("Image section has no alt text")
return False
# Basic base64 validation
try:
import base64
base64.b64decode(base64_data, validate=True)
return True
except Exception as e:
self.logger.warning(f"Invalid base64 image data: {str(e)}")
return False
def _get_image_dimensions(self, base64_data: str) -> Tuple[int, int]:
"""
Get image dimensions from base64 data.
This is a helper method that format-specific renderers can use.
"""
try:
import base64
from PIL import Image
import io
# Decode base64 data
image_data = base64.b64decode(base64_data)
image = Image.open(io.BytesIO(image_data))
return image.size # Returns (width, height)
except Exception as e:
self.logger.warning(f"Could not determine image dimensions: {str(e)}")
return (0, 0)
def _resize_image_if_needed(self, base64_data: str, max_width: int = 800, max_height: int = 600) -> str:
"""
Resize image if it exceeds maximum dimensions.
Returns the resized image as base64 string.
"""
try:
import base64
from PIL import Image
import io
# Decode base64 data
image_data = base64.b64decode(base64_data)
image = Image.open(io.BytesIO(image_data))
# Check if resizing is needed
width, height = image.size
if width <= max_width and height <= max_height:
return base64_data # No resizing needed
# Calculate new dimensions maintaining aspect ratio
ratio = min(max_width / width, max_height / height)
new_width = int(width * ratio)
new_height = int(height * ratio)
# Resize image
resized_image = image.resize((new_width, new_height), Image.Resampling.LANCZOS)
# Convert back to base64
buffer = io.BytesIO()
resized_image.save(buffer, format=image.format or 'PNG')
resized_data = buffer.getvalue()
return base64.b64encode(resized_data).decode('utf-8')
except Exception as e:
self.logger.warning(f"Could not resize image: {str(e)}")
return base64_data # Return original if resize fails
def _get_supported_section_types(self) -> List[str]:
"""Return list of supported section types."""
return ["table", "bullet_list", "heading", "paragraph", "code_block", "image"]
@ -170,7 +273,19 @@ class BaseRenderer(ABC):
return {"type": "code_block", "code": code, "language": language}
elif section_type == "image":
base64_data, alt_text = self._extract_image_data(section_data)
return {"type": "image", "base64Data": base64_data, "altText": alt_text}
# Validate image data
if self._validate_image_data(base64_data, alt_text):
return {
"type": "image",
"base64Data": base64_data,
"altText": alt_text,
"width": section_data.get("width"),
"height": section_data.get("height"),
"caption": section_data.get("caption", "")
}
else:
# Return placeholder if image data is invalid
return {"type": "paragraph", "text": f"[Image: {alt_text}]"}
else:
# Fallback to paragraph
text = self._extract_paragraph_text(section_data)

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@ -0,0 +1,281 @@
"""
Image renderer for report generation using AI image generation.
"""
from .rendererBaseTemplate import BaseRenderer
from typing import Dict, Any, Tuple, List
import base64
import logging
logger = logging.getLogger(__name__)
class RendererImage(BaseRenderer):
"""Renders content to image format using AI image generation."""
@classmethod
def get_supported_formats(cls) -> List[str]:
"""Return supported image formats."""
return ['png', 'jpg', 'jpeg', 'image']
@classmethod
def get_format_aliases(cls) -> List[str]:
"""Return format aliases."""
return ['img', 'picture', 'photo', 'graphic']
@classmethod
def get_priority(cls) -> int:
"""Return priority for image renderer."""
return 90
async def render(self, extracted_content: Dict[str, Any], title: str, user_prompt: str = None, ai_service=None) -> Tuple[str, str]:
"""Render extracted JSON content to image format using AI image generation."""
try:
# Generate AI image from content
image_content = await self._generate_ai_image(extracted_content, title, user_prompt, ai_service)
return image_content, "image/png"
except Exception as e:
self.logger.error(f"Error rendering image: {str(e)}")
# Re-raise the exception instead of using fallback
raise Exception(f"Image rendering failed: {str(e)}")
async def _generate_ai_image(self, extracted_content: Dict[str, Any], title: str, user_prompt: str = None, ai_service=None) -> str:
"""Generate AI image from extracted content."""
try:
if not ai_service:
raise ValueError("AI service is required for image generation")
# Validate JSON structure
if not isinstance(extracted_content, dict):
raise ValueError("Extracted content must be a dictionary")
if "sections" not in extracted_content:
raise ValueError("Extracted content must contain 'sections' field")
# Use title from JSON metadata if available, otherwise use provided title
document_title = extracted_content.get("metadata", {}).get("title", title)
# Create AI prompt for image generation
image_prompt = await self._create_image_generation_prompt(extracted_content, document_title, user_prompt, ai_service)
# Generate image using AI
image_result = await ai_service.aiObjects.generateImage(
prompt=image_prompt,
size="1024x1024",
quality="standard",
style="vivid"
)
# Extract base64 image data from result
if image_result and image_result.get("success", False):
image_data = image_result.get("image_data", "")
if image_data:
return image_data
else:
raise ValueError("No image data returned from AI")
else:
error_msg = image_result.get("error", "Unknown error") if image_result else "No result"
raise ValueError(f"AI image generation failed: {error_msg}")
except Exception as e:
self.logger.error(f"Error generating AI image: {str(e)}")
raise Exception(f"AI image generation failed: {str(e)}")
async def _create_image_generation_prompt(self, extracted_content: Dict[str, Any], title: str, user_prompt: str = None, ai_service=None) -> str:
"""Create a detailed prompt for AI image generation based on the content."""
try:
# Start with base prompt
prompt_parts = []
# Add user's original intent if available
if user_prompt:
prompt_parts.append(f"User Request: {user_prompt}")
# Add document title
prompt_parts.append(f"Document Title: {title}")
# Analyze content and create visual description
sections = extracted_content.get("sections", [])
content_description = self._analyze_content_for_visual_description(sections)
if content_description:
prompt_parts.append(f"Content to Visualize: {content_description}")
# Add style guidance
style_guidance = self._get_style_guidance_from_content(extracted_content, user_prompt)
if style_guidance:
prompt_parts.append(f"Visual Style: {style_guidance}")
# Combine all parts
full_prompt = "Create a professional, informative image that visualizes the following content:\n\n" + "\n\n".join(prompt_parts)
# Add technical requirements
full_prompt += "\n\nTechnical Requirements:"
full_prompt += "\n- High quality, professional appearance"
full_prompt += "\n- Clear, readable text if any text is included"
full_prompt += "\n- Appropriate colors and layout"
full_prompt += "\n- Suitable for business/professional use"
# Truncate prompt if it exceeds DALL-E's 4000 character limit
if len(full_prompt) > 4000:
# Use AI to compress the prompt intelligently
compressed_prompt = await self._compress_prompt_with_ai(full_prompt, ai_service)
if compressed_prompt and len(compressed_prompt) <= 4000:
return compressed_prompt
# Fallback to minimal prompt if AI compression fails or is still too long
minimal_prompt = f"Create a professional image representing: {title}"
if user_prompt:
minimal_prompt += f" - {user_prompt}"
# If even the minimal prompt is too long, truncate it
if len(minimal_prompt) > 4000:
minimal_prompt = minimal_prompt[:3997] + "..."
return minimal_prompt
return full_prompt
except Exception as e:
self.logger.warning(f"Error creating image prompt: {str(e)}")
# Fallback to simple prompt
return f"Create a professional image representing: {title}"
async def _compress_prompt_with_ai(self, long_prompt: str, ai_service=None) -> str:
"""Use AI to intelligently compress a long prompt while preserving key information."""
try:
if not ai_service:
return None
compression_prompt = f"""
You are an expert at creating concise, effective prompts for AI image generation.
The following prompt is too long for DALL-E (4000 character limit) and needs to be compressed to under 4000 characters while preserving the most important visual information.
Original prompt ({len(long_prompt)} characters):
{long_prompt}
Please create a compressed version that:
1. Keeps the most important visual elements and requirements
2. Maintains the core intent and style guidance
3. Preserves technical requirements
4. Stays under 4000 characters
5. Is optimized for DALL-E image generation
Return only the compressed prompt, no explanations.
"""
# Use AI to compress the prompt - call the AI service correctly
# The ai_service has an aiObjects attribute that contains the actual AI interface
from modules.datamodels.datamodelAi import AiCallRequest, AiCallOptions, OperationType
request = AiCallRequest(
prompt=compression_prompt,
options=AiCallOptions(
operationType=OperationType.GENERAL,
maxTokens=2000,
temperature=0.3 # Lower temperature for more consistent compression
)
)
response = await ai_service.aiObjects.call(request)
compressed = response.content.strip()
# Validate the compressed prompt
if compressed and len(compressed) <= 4000 and len(compressed) > 50:
self.logger.info(f"Successfully compressed prompt from {len(long_prompt)} to {len(compressed)} characters")
return compressed
else:
self.logger.warning(f"AI compression failed or produced invalid result: {len(compressed) if compressed else 0} chars")
return None
except Exception as e:
self.logger.warning(f"Error compressing prompt with AI: {str(e)}")
return None
def _analyze_content_for_visual_description(self, sections: List[Dict[str, Any]]) -> str:
"""Analyze content sections and create a visual description for AI."""
try:
descriptions = []
for section in sections:
section_type = self._get_section_type(section)
section_data = self._get_section_data(section)
if section_type == "table":
headers = section_data.get("headers", [])
rows = section_data.get("rows", [])
if headers and rows:
descriptions.append(f"Data table with {len(headers)} columns and {len(rows)} rows: {', '.join(headers)}")
elif section_type == "bullet_list":
items = section_data.get("items", [])
if items:
descriptions.append(f"List with {len(items)} items")
elif section_type == "heading":
text = section_data.get("text", "")
level = section_data.get("level", 1)
if text:
descriptions.append(f"Heading {level}: {text}")
elif section_type == "paragraph":
text = section_data.get("text", "")
if text and len(text) > 10: # Only include substantial paragraphs
# Truncate long text
truncated = text[:100] + "..." if len(text) > 100 else text
descriptions.append(f"Text content: {truncated}")
elif section_type == "code_block":
code = section_data.get("code", "")
language = section_data.get("language", "")
if code:
descriptions.append(f"Code block ({language}): {code[:50]}...")
return "; ".join(descriptions) if descriptions else "General document content"
except Exception as e:
self.logger.warning(f"Error analyzing content: {str(e)}")
return "Document content"
def _get_style_guidance_from_content(self, extracted_content: Dict[str, Any], user_prompt: str = None) -> str:
"""Determine visual style guidance based on content and user prompt."""
try:
style_elements = []
# Analyze user prompt for style hints
if user_prompt:
prompt_lower = user_prompt.lower()
if any(word in prompt_lower for word in ["modern", "contemporary", "sleek"]):
style_elements.append("modern, clean design")
elif any(word in prompt_lower for word in ["classic", "traditional", "formal"]):
style_elements.append("classic, formal design")
elif any(word in prompt_lower for word in ["creative", "artistic", "colorful"]):
style_elements.append("creative, artistic design")
elif any(word in prompt_lower for word in ["corporate", "business", "professional"]):
style_elements.append("corporate, professional design")
# Analyze content type for additional style hints
sections = extracted_content.get("sections", [])
has_tables = any(self._get_section_type(s) == "table" for s in sections)
has_lists = any(self._get_section_type(s) == "bullet_list" for s in sections)
has_code = any(self._get_section_type(s) == "code_block" for s in sections)
if has_tables:
style_elements.append("data-focused layout")
if has_lists:
style_elements.append("organized, structured presentation")
if has_code:
style_elements.append("technical, developer-friendly")
# Default style if no specific guidance
if not style_elements:
style_elements.append("professional, clean design")
return ", ".join(style_elements)
except Exception as e:
self.logger.warning(f"Error determining style guidance: {str(e)}")
return "professional design"

View file

@ -154,7 +154,7 @@ async def process_documents_and_generate_summary():
# userPrompt = "Analyze these documents and create a comprehensive DOCX summary document including: 1) Document types and purposes, 2) Key information and main points, 3) Important details and numbers, 4) Notable sections, 5) Overall assessment and recommendations."
userPrompt = "Analyze these documents and create a comprehensive form for a user to fill out"
userPrompt = "Analyze these documents and create a fitting image for the content"
# userPrompt = "Extract the table from file and produce 2 lists in excel. one list with all entries, one list only with entries that are yellow highlighted."
@ -168,7 +168,7 @@ async def process_documents_and_generate_summary():
prompt=userPrompt,
documents=documents,
options=ai_options,
outputFormat="html",
outputFormat="txt",
title="Formulaire"
)
@ -272,13 +272,17 @@ async def process_documents_and_generate_summary():
file_ext = '.pptx'
elif 'markdown' in doc_mime.lower() or 'md' in doc_mime.lower():
file_ext = '.md'
elif 'png' in doc_mime.lower() or 'image' in doc_mime.lower():
file_ext = '.png'
elif 'jpg' in doc_mime.lower() or 'jpeg' in doc_mime.lower():
file_ext = '.jpg'
else:
logger.warning(f"⚠️ Unknown MIME type: {doc_mime}, using .bin")
# Also check filename for hints
if doc_name and '.' in doc_name:
name_ext = '.' + doc_name.split('.')[-1].lower()
if name_ext in ['.docx', '.pdf', '.txt', '.html', '.json', '.csv', '.xlsx', '.pptx', '.md']:
if name_ext in ['.docx', '.pdf', '.txt', '.html', '.json', '.csv', '.xlsx', '.pptx', '.md', '.png', '.jpg', '.jpeg']:
file_ext = name_ext
logger.info(f"📄 Using extension from filename: {file_ext}")
@ -293,8 +297,14 @@ async def process_documents_and_generate_summary():
with open(output_path, 'w', encoding='utf-8') as f:
f.write(doc_data)
logger.info(f"✅ Document saved as text: {output_path} ({len(doc_data)} characters)")
elif file_ext in ['.png', '.jpg', '.jpeg']:
# Image formats - decode from base64
doc_bytes = base64.b64decode(doc_data)
with open(output_path, 'wb') as f:
f.write(doc_bytes)
logger.info(f"✅ Image saved: {output_path} ({len(doc_bytes)} bytes)")
else:
# Binary formats - decode from base64
# Other binary formats - decode from base64
doc_bytes = base64.b64decode(doc_data)
with open(output_path, 'wb') as f:
f.write(doc_bytes)