PIL to Pix: convert all alpha modes to RGBA

sirfz · Nov 9, 2021 · 310ae9a · 310ae9a
1 parent 9c8740d
commit 310ae9a
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/tesserocr.pyx b/tesserocr.pyx
@@ -329,6 +329,9 @@ cdef unicode _free_str(char *text):
 cdef bytes _image_buffer(image):
     """Return raw bytes of a PIL Image"""
     with BytesIO() as f:
+        # Pix and BMP only allow alpha as RGBA:
+        if image.mode in ['LA', 'PA', 'RGBa', 'La']:
+            image = image.convert('RGBA')
         image.save(f, image.format or 'BMP')
         return f.getvalue()