sbb_binarize: fix missing reference

src/eynollah/ocrd_cli_binarization.py

@@ -83,7 +83,7 @@ class SbbBinarizeProcessor(Processor):
             for region in regions:
                 region_image, region_xywh = self.workspace.image_from_segment(
                     region, page_image, page_xywh, feature_filter='binarized')
-                region_image_bin = cv2pil(binarizer.run(image=pil2cv(region_image), use_patches=True))
+                region_image_bin = cv2pil(self.binarizer.run(image=pil2cv(region_image), use_patches=True))
                 # update PAGE (reference the image file):
                 region_image_ref = AlternativeImageType(comments=region_xywh['features'] + ',binarized')
                 region.add_AlternativeImage(region_image_ref)
@@ -95,7 +95,7 @@ class SbbBinarizeProcessor(Processor):
                 self.logger.warning("Page '%s' contains no text lines", page_id)
             for line in lines:
                 line_image, line_xywh = self.workspace.image_from_segment(line, page_image, page_xywh, feature_filter='binarized')
-                line_image_bin = cv2pil(binarizer.run(image=pil2cv(line_image), use_patches=True))
+                line_image_bin = cv2pil(self.binarizer.run(image=pil2cv(line_image), use_patches=True))
                 # update PAGE (reference the image file):
                 line_image_ref = AlternativeImageType(comments=line_xywh['features'] + ',binarized')
                 line.add_AlternativeImage(region_image_ref)