Fix/521 pdf2image memory error hi res (#948)

This PR is to reflect changes in the unstructured-inference PR #152

* Update functionality to retrieve image metadata from a page for document_to_element_list

.gitignore

@@ -186,3 +186,5 @@ tags
 
 # Ruff cache
 .ruff_cache/
+
+unstructured-inference/

CHANGELOG.md

@@ -1,7 +1,8 @@
-## 0.8.2-dev4
+## 0.8.2-dev5
 
 ### Enhancements
 
+* Update functionality to retrieve image metadata from a page for `document_to_element_list`
 * Links are now tracked in `partition_html` output.
 * Set the file's current position to the beginning after reading the file in `convert_to_bytes`
 * Add min_partition kwarg to that combines elements below a specified threshold and modifies splitting of strings longer than max partition so words are not split.
@@ -17,6 +18,7 @@
 
 ### Fixes
 
+* Use the `image_metadata` property of the `PageLayout` instance to get the page image info in the `document_to_element_list`
 * Add functionality to write images to computer storage temporarily instead of keeping them in memory for `ocr_only` strategy
 * Add functionality to convert a PDF in small chunks of pages at a time for `ocr_only` strategy
 * Adds `.txt`, `.text`, and `.tab` to list of extensions to check if file

test_unstructured/file_utils/test_filetype.py

@@ -11,6 +11,7 @@
 from unstructured.file_utils import filetype
 from unstructured.file_utils.filetype import (
     FileType,
+    _get_page_image_metadata,
     _is_code_mime_type,
     _is_text_file_a_csv,
     _is_text_file_a_json,
@@ -469,3 +470,9 @@ def test_document_to_element_list_omits_coord_system_when_coord_points_absent():
     layout_elem_absent_coordinates = MockDocumentLayout()
     elements = document_to_element_list(layout_elem_absent_coordinates)
     assert elements[0].metadata.coordinates is None
+
+
+def test_get_page_image_metadata_and_coordinate_system():
+    doc = MockDocumentLayout()
+    metadata = _get_page_image_metadata(doc.pages[0])
+    assert type(metadata) == dict

unstructured/__version__.py

@@ -1 +1 @@
-__version__ = "0.8.2-dev4"  # pragma: no cover
+__version__ = "0.8.2-dev5"  # pragma: no cover

unstructured/file_utils/filetype.py

@@ -20,7 +20,7 @@
 )
 
 if TYPE_CHECKING:
-    from unstructured_inference.inference.layout import DocumentLayout
+    from unstructured_inference.inference.layout import DocumentLayout, PageLayout
 
 try:
     import magic
@@ -466,14 +466,20 @@ def document_to_element_list(
     num_pages = len(document.pages)
     for i, page in enumerate(document.pages):
         page_elements: List[Element] = []
+
+        page_image_metadata = _get_page_image_metadata(page)
+        image_format = page_image_metadata.get("format")
+        image_width = page_image_metadata.get("width")
+        image_height = page_image_metadata.get("height")
+
         for layout_element in page.elements:
-            if hasattr(page, "image") and hasattr(layout_element, "coordinates"):
-                image_format = page.image.format
-                coordinate_system = PixelSpace(width=page.image.width, height=page.image.height)
+            if image_width and image_height and hasattr(layout_element, "coordinates"):
+                coordinate_system = PixelSpace(width=image_width, height=image_height)
             else:
-                image_format = None
                 coordinate_system = None
+
             element = normalize_layout_element(layout_element, coordinate_system=coordinate_system)
+
             if isinstance(element, List):
                 for el in element:
                     el.metadata.page_number = i + 1
@@ -514,6 +520,34 @@ def document_to_element_list(
     return elements
 
 
+def _get_page_image_metadata(
+    page: PageLayout,
+) -> dict:
+    """Retrieve image metadata and coordinate system from a page."""
+
+    image = getattr(page, "image", None)
+    image_metadata = getattr(page, "image_metadata", None)
+
+    if image:
+        image_format = image.format
+        image_width = image.width
+        image_height = image.height
+    elif image_metadata:
+        image_format = image_metadata.get("format")
+        image_width = image_metadata.get("width")
+        image_height = image_metadata.get("height")
+    else:
+        image_format = None
+        image_width = None
+        image_height = None
+
+    return {
+        "format": image_format,
+        "width": image_width,
+        "height": image_height,
+    }
+
+
 PROGRAMMING_LANGUAGES = [
     "javascript",
     "python",