diff --git a/wagtail_localize/models.py b/wagtail_localize/models.py
index 5aa196ea..656e4059 100644
--- a/wagtail_localize/models.py
+++ b/wagtail_localize/models.py
@@ -3,6 +3,7 @@
 
 import polib
 
+from django.apps import apps
 from django.conf import settings
 from django.contrib.admin.utils import quote
 from django.contrib.contenttypes.models import ContentType
@@ -36,6 +37,7 @@
     get_serializable_data_for_fields,
     model_from_serializable_data,
 )
+from wagtail import VERSION as WAGTAIL_VERSION
 from wagtail import blocks
 from wagtail.blocks.list_block import ListValue
 from wagtail.coreutils import find_available_slug
@@ -1559,6 +1561,14 @@ def get_field_path_from_streamfield_block(value, path_components):
                                 block_def = value.stream_block.child_blocks[block_type]
                             block_value = block.value
 
+                        if WAGTAIL_VERSION >= (6, 3) and apps.is_installed(
+                            "wagtail.images"
+                        ):
+                            from wagtail.images.blocks import ImageBlock
+
+                            if isinstance(block_def, ImageBlock):
+                                return [block_type] + path_components[1:]
+
                         if isinstance(
                             block_def,
                             (blocks.StructBlock, blocks.StreamBlock, blocks.ListBlock),
diff --git a/wagtail_localize/segments/extract.py b/wagtail_localize/segments/extract.py
index 313219b8..e68daa59 100644
--- a/wagtail_localize/segments/extract.py
+++ b/wagtail_localize/segments/extract.py
@@ -2,6 +2,7 @@
 from django.core.exceptions import ImproperlyConfigured
 from django.db import models
 from modelcluster.fields import ParentalKey
+from wagtail import VERSION as WAGTAIL_VERSION
 from wagtail import blocks
 from wagtail.fields import RichTextField, StreamField
 from wagtail.models import Page, TranslatableMixin
@@ -52,6 +53,14 @@ def handle_block(self, block_type, block_value, raw_value=None):
                 else:
                     return []
 
+        if WAGTAIL_VERSION >= (6, 3) and apps.is_installed("wagtail.images"):
+            from wagtail.images.blocks import ImageBlock
+
+            if isinstance(block_type, ImageBlock):
+                return self.handle_image_block(
+                    block_type, block_value, raw_value=raw_value
+                )
+
         if hasattr(block_type, "get_translatable_segments"):
             return block_type.get_translatable_segments(block_value)
 
@@ -181,6 +190,28 @@ def handle_list_block(self, list_block, raw_value=None):
                     )
         return segments
 
+    def handle_image_block(self, block, image_block_value, raw_value=None):
+        segments = []
+
+        for field_name, block_type in block.child_blocks.items():
+            try:
+                block_raw_value = raw_value["value"].get(field_name)
+                block_value = (
+                    image_block_value if field_name == "image" else block_raw_value
+                )
+            except (KeyError, TypeError):
+                # e.g. raw_value is None, or is that from chooser
+                block_raw_value = None
+                block_value = None
+            segments.extend(
+                segment.wrap(field_name)
+                for segment in self.handle_block(
+                    block_type, block_value, raw_value=block_raw_value
+                )
+            )
+
+        return segments
+
     def handle_stream_block(self, stream_block):
         segments = []
 
diff --git a/wagtail_localize/segments/ingest.py b/wagtail_localize/segments/ingest.py
index 23008532..580ca44d 100644
--- a/wagtail_localize/segments/ingest.py
+++ b/wagtail_localize/segments/ingest.py
@@ -2,6 +2,7 @@
 
 from django.apps import apps
 from django.db import models
+from wagtail import VERSION as WAGTAIL_VERSION
 from wagtail import blocks
 from wagtail.fields import RichTextField, StreamField
 from wagtail.rich_text import RichText
@@ -129,6 +130,12 @@ def handle_block(self, block_type, block_value, segments):
                 if isinstance(segment, OverridableSegmentValue):
                     return EmbedValue(segment.data)
 
+        if WAGTAIL_VERSION >= (6, 3) and apps.is_installed("wagtail.images"):
+            from wagtail.images.blocks import ImageBlock
+
+            if isinstance(block_type, ImageBlock):
+                return self.handle_image_block(block_type, block_value, segments)
+
         if hasattr(block_type, "restore_translated_segments"):
             return block_type.restore_translated_segments(block_value, segments)
 
@@ -211,6 +218,24 @@ def handle_list_block(self, list_block, segments):
 
         return list_block
 
+    def handle_image_block(self, block, image_block, segments):
+        segments_by_field = defaultdict(list)
+
+        for segment in segments:
+            field_name, segment = segment.unwrap()
+            segments_by_field[field_name].append(segment)
+
+        field_map = {"alt_text": "contextual_alt_text", "decorative": "decorative"}
+        for field_name, segments in segments_by_field.items():
+            if segments:
+                block_type = block.child_blocks[field_name]
+                value = self.handle_block(
+                    block_type, getattr(image_block, field_map[field_name]), segments
+                )
+                setattr(image_block, field_map[field_name], value)
+
+        return image_block
+
     def get_stream_block_child_data(self, stream_block, block_uuid):
         for stream_child in stream_block:
             if stream_child.id == block_uuid: