From 7d8a06f2ddebf98b724fd5940b02c5b440837601 Mon Sep 17 00:00:00 2001
From: Gustaf Rydholm <gustaf.rydholm@gmail.com>
Date: Fri, 11 Feb 2022 21:57:40 +0100
Subject: fix: move image utils back into data folder

---
 text_recognizer/data/utils/image_utils.py | 34 +++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 text_recognizer/data/utils/image_utils.py

diff --git a/text_recognizer/data/utils/image_utils.py b/text_recognizer/data/utils/image_utils.py
new file mode 100644
index 0000000..d374fc3
--- /dev/null
+++ b/text_recognizer/data/utils/image_utils.py
@@ -0,0 +1,34 @@
+"""Image util functions for loading and saving images."""
+import base64
+from io import BytesIO
+from pathlib import Path
+from typing import Any, Union
+
+from PIL import Image
+import smart_open
+
+
+def read_image_pil(image_uri: Union[Path, str], grayscale: bool = False) -> Image:
+    """Read image from uri."""
+    with smart_open.open(image_uri, "rb") as image_file:
+        return read_image_pil_file(image_file, grayscale)
+
+
+def read_image_pil_file(image_file: Any, grayscale: bool = False) -> Image:
+    """Return PIL image."""
+    with Image.open(image_file) as image:
+        if grayscale:
+            image = image.convert("L")
+        else:
+            image = image.convert(mode=image.mode)
+    return image
+
+
+def read_b64_image(b64_str: str, grayscale: bool = False) -> Image:
+    """Load base64-encoded images."""
+    try:
+        _, b64_data = b64_str.split(",")
+        image_file = BytesIO(base64.b64decode(b64_data))
+        return read_image_pil_file(image_file, grayscale)
+    except Exception as e:
+        raise ValueError(f"Could not load image from b64 {b64_str}: {e}")
-- 
cgit v1.2.3-70-g09d2