sbb_binarization is integrated into eynollah works in framework of oc…

…rd - sbb_binarization in ocrd works for individual images by the way as standalone flowing from directory can be used now. For eynollah in ocrd framework I have added -light version as default parameter.

pyproject.toml

@@ -28,6 +28,7 @@ classifiers = [
 [project.scripts]
 eynollah = "eynollah.cli:main"
 ocrd-eynollah-segment = "eynollah.ocrd_cli:main"
+ocrd-sbb-binarize = "eynollah.ocrd_cli_binarization:cli"
 
 [project.urls]
 Homepage = "https://github.com/qurator-spk/eynollah"

src/eynollah/eynollah.py

@@ -4964,7 +4964,6 @@ def run(self):
                         polygons_of_images, img_revised_tab, text_regions_p_1_n, textline_mask_tot_d, regions_without_separators_d, boxes, boxes_d, polygons_of_marginals, contours_tables = self.run_boxes_no_full_layout(image_page, textline_mask_tot, text_regions_p, slope_deskew, num_col_classifier, table_prediction, erosion_hurts)
                         ###polygons_of_marginals = self.dilate_textregions_contours(polygons_of_marginals)
                     if self.full_layout:
-                        cv2.imwrite('dewar_page.png', image_page)
                         if not self.light_version:
                             img_bin_light = None
                         polygons_of_images, img_revised_tab, text_regions_p_1_n, textline_mask_tot_d, regions_without_separators_d, regions_fully, regions_without_separators, polygons_of_marginals, contours_tables = self.run_boxes_full_layout(image_page, textline_mask_tot, text_regions_p, slope_deskew, num_col_classifier, img_only_regions, table_prediction, erosion_hurts, img_bin_light)

src/eynollah/ocrd-tool-binarization.json

@@ -0,0 +1,47 @@
+{
+  "version": "0.1.0",
+  "git_url": "https://github.com/qurator-spk/sbb_binarization",
+  "tools": {
+    "ocrd-sbb-binarize": {
+      "executable": "ocrd-sbb-binarize",
+      "description": "Pixelwise binarization with selectional auto-encoders in Keras",
+      "categories": ["Image preprocessing"],
+      "steps": ["preprocessing/optimization/binarization"],
+      "input_file_grp": [],
+      "output_file_grp": [],
+      "parameters": {
+        "operation_level": {
+          "type": "string",
+          "enum": ["page", "region"],
+          "default": "page",
+          "description": "PAGE XML hierarchy level to operate on"
+        },
+        "model": {
+          "description": "Directory containing HDF5 or SavedModel/ProtoBuf models. Can be an absolute path or a path relative to the OCR-D resource location, the current working directory or the $SBB_BINARIZE_DATA environment variable (if set)",
+          "type": "string",
+          "format": "uri",
+          "content-type": "text/directory",
+          "required": true
+        }
+      },
+      "resources": [
+        {
+          "url": "https://github.com/qurator-spk/sbb_binarization/releases/download/v0.0.11/saved_model_2020_01_16.zip",
+          "name": "default",
+          "type": "archive",
+          "path_in_archive": "saved_model_2020_01_16",
+          "size": 563147331,
+          "description": "default models provided by github.com/qurator-spk (SavedModel format)"
+        },
+        {
+          "url": "https://github.com/qurator-spk/sbb_binarization/releases/download/v0.0.11/saved_model_2021_03_09.zip",
+          "name": "default-2021-03-09",
+          "type": "archive",
+          "path_in_archive": ".",
+          "size": 133230419,
+          "description": "updated default models provided by github.com/qurator-spk (SavedModel format)"
+        }
+      ]
+    }
+  }
+}

src/eynollah/ocrd-tool.json

@@ -28,6 +28,16 @@
           "type": "boolean",
           "default": true,
           "description": "Try to detect all element subtypes, including drop-caps and headings"
+        },
+         "light_version": {
+          "type": "boolean",
+          "default": true,
+          "description": "Try to detect all element subtypes in light version"
+        },
+         "textline_light": {
+          "type": "boolean",
+          "default": true,
+          "description": "Light version need textline light"
         },
 	"tables": {
 	  "type": "boolean",

src/eynollah/ocrd_cli_binarization.py

@@ -0,0 +1,158 @@
+from os import environ
+from os.path import join
+from pathlib import Path
+from pkg_resources import resource_string
+from json import loads
+
+from PIL import Image
+import numpy as np
+import cv2
+from click import command
+
+from ocrd_utils import (
+    getLogger,
+    assert_file_grp_cardinality,
+    make_file_id,
+    MIMETYPE_PAGE
+)
+from ocrd import Processor
+from ocrd_modelfactory import page_from_file
+from ocrd_models.ocrd_page import AlternativeImageType, to_xml
+from ocrd.decorators import ocrd_cli_options, ocrd_cli_wrap_processor
+
+from .sbb_binarize import SbbBinarizer
+
+OCRD_TOOL = loads(resource_string(__name__, 'ocrd-tool-binarization.json').decode('utf8'))
+TOOL = 'ocrd-sbb-binarize'
+
+def cv2pil(img):
+    return Image.fromarray(img.astype('uint8'))
+
+def pil2cv(img):
+    # from ocrd/workspace.py
+    color_conversion = cv2.COLOR_GRAY2BGR if img.mode in ('1', 'L') else  cv2.COLOR_RGB2BGR
+    pil_as_np_array = np.array(img).astype('uint8') if img.mode == '1' else np.array(img)
+    return cv2.cvtColor(pil_as_np_array, color_conversion)
+
+class SbbBinarizeProcessor(Processor):
+
+    def __init__(self, *args, **kwargs):
+        kwargs['ocrd_tool'] = OCRD_TOOL['tools'][TOOL]
+        kwargs['version'] = OCRD_TOOL['version']
+        super().__init__(*args, **kwargs)
+        if hasattr(self, 'output_file_grp'):
+            # processing context
+            self.setup()
+
+    def setup(self):
+        """
+        Set up the model prior to processing.
+        """
+        LOG = getLogger('processor.SbbBinarize.__init__')
+        if not 'model' in self.parameter:
+            raise ValueError("'model' parameter is required")
+        # resolve relative path via environment variable
+        model_path = Path(self.parameter['model'])
+        if not model_path.is_absolute():
+            if 'SBB_BINARIZE_DATA' in environ and environ['SBB_BINARIZE_DATA']:
+                LOG.info("Environment variable SBB_BINARIZE_DATA is set to '%s'" \
+                         " - prepending to model value '%s'. If you don't want this mechanism," \
+                         " unset the SBB_BINARIZE_DATA environment variable.",
+                         environ['SBB_BINARIZE_DATA'], model_path)
+                model_path = Path(environ['SBB_BINARIZE_DATA']).joinpath(model_path)
+                model_path = model_path.resolve()
+                if not model_path.is_dir():
+                    raise FileNotFoundError("Does not exist or is not a directory: %s" % model_path)
+        # resolve relative path via OCR-D ResourceManager
+        model_path = self.resolve_resource(str(model_path))
+        self.binarizer = SbbBinarizer(model_dir=model_path, logger=LOG)
+
+    def process(self):
+        """
+        Binarize images with sbb_binarization (based on selectional auto-encoders).
+
+        For each page of the input file group, open and deserialize input PAGE-XML
+        and its respective images. Then iterate over the element hierarchy down to
+        the requested ``operation_level``.
+
+        For each segment element, retrieve a raw (non-binarized) segment image
+        according to the layout  annotation (from an existing ``AlternativeImage``,
+        or by cropping into the higher-level images, and deskewing when applicable).
+
+        Pass the image to the binarizer (which runs in fixed-size windows/patches
+        across the image and stitches the results together).
+
+        Serialize the resulting bilevel image as PNG file and add it to the output
+        file group (with file ID suffix ``.IMG-BIN``) along with the output PAGE-XML
+        (referencing it as new ``AlternativeImage`` for the segment element).
+
+        Produce a new PAGE output file by serialising the resulting hierarchy.
+        """
+        LOG = getLogger('processor.SbbBinarize')
+        assert_file_grp_cardinality(self.input_file_grp, 1)
+        assert_file_grp_cardinality(self.output_file_grp, 1)
+
+        oplevel = self.parameter['operation_level']
+
+        for n, input_file in enumerate(self.input_files):
+            file_id = make_file_id(input_file, self.output_file_grp)
+            page_id = input_file.pageId or input_file.ID
+            LOG.info("INPUT FILE %i / %s", n, page_id)
+            pcgts = page_from_file(self.workspace.download_file(input_file))
+            self.add_metadata(pcgts)
+            pcgts.set_pcGtsId(file_id)
+            page = pcgts.get_Page()
+            page_image, page_xywh, _ = self.workspace.image_from_page(page, page_id, feature_filter='binarized')
+
+            if oplevel == 'page':
+                LOG.info("Binarizing on 'page' level in page '%s'", page_id)
+                bin_image = cv2pil(self.binarizer.run(image=pil2cv(page_image), use_patches=True))
+                # update METS (add the image file):
+                bin_image_path = self.workspace.save_image_file(bin_image,
+                        file_id + '.IMG-BIN',
+                        page_id=input_file.pageId,
+                        file_grp=self.output_file_grp)
+                page.add_AlternativeImage(AlternativeImageType(filename=bin_image_path, comments='%s,binarized' % page_xywh['features']))
+
+            elif oplevel == 'region':
+                regions = page.get_AllRegions(['Text', 'Table'], depth=1)
+                if not regions:
+                    LOG.warning("Page '%s' contains no text/table regions", page_id)
+                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_path = self.workspace.save_image_file(
+                            region_image_bin,
+                            "%s_%s.IMG-BIN" % (file_id, region.id),
+                            page_id=input_file.pageId,
+                            file_grp=self.output_file_grp)
+                    region.add_AlternativeImage(
+                        AlternativeImageType(filename=region_image_bin_path, comments='%s,binarized' % region_xywh['features']))
+
+            elif oplevel == 'line':
+                region_line_tuples = [(r.id, r.get_TextLine()) for r in page.get_AllRegions(['Text'], depth=0)]
+                if not region_line_tuples:
+                    LOG.warning("Page '%s' contains no text lines", page_id)
+                for region_id, line in region_line_tuples:
+                    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_path = self.workspace.save_image_file(
+                            line_image_bin,
+                            "%s_%s_%s.IMG-BIN" % (file_id, region_id, line.id),
+                            page_id=input_file.pageId,
+                            file_grp=self.output_file_grp)
+                    line.add_AlternativeImage(
+                        AlternativeImageType(filename=line_image_bin_path, comments='%s,binarized' % line_xywh['features']))
+
+            self.workspace.add_file(
+                ID=file_id,
+                file_grp=self.output_file_grp,
+                pageId=input_file.pageId,
+                mimetype=MIMETYPE_PAGE,
+                local_filename=join(self.output_file_grp, file_id + '.xml'),
+                content=to_xml(pcgts))
+
+@command()
+@ocrd_cli_options
+def cli(*args, **kwargs):
+    return ocrd_cli_wrap_processor(SbbBinarizeProcessor, *args, **kwargs)

src/eynollah/processor.py

@@ -49,6 +49,8 @@ def process(self):
                 'curved_line': self.parameter['curved_line'],
                 'full_layout': self.parameter['full_layout'],
                 'allow_scaling': self.parameter['allow_scaling'],
+                'light_version': self.parameter['light_version'],
+                'textline_light': self.parameter['textline_light'],
                 'headers_off': self.parameter['headers_off'],
                 'tables': self.parameter['tables'],
                 'override_dpi': self.parameter['dpi'],