diff --git a/homeassistant/components/opendisplay/services.py b/homeassistant/components/opendisplay/services.py
index 971d0076860d..984abce80e96 100644
--- a/homeassistant/components/opendisplay/services.py
+++ b/homeassistant/components/opendisplay/services.py
@@ -21,6 +21,7 @@ from opendisplay import (
 from PIL import Image as PILImage, ImageOps
 import probatio
 
+from homeassistant.components import camera, image as image_component
 from homeassistant.components.bluetooth import (
     BluetoothReachabilityIntent,
     async_address_reachability_diagnostics,
@@ -128,6 +129,31 @@ async def _async_download_image(hass: HomeAssistant, url: str) -> PILImage.Image
     return await hass.async_add_executor_job(_load_image_from_bytes, data)
 
 
+async def _async_get_pil_image(
+    hass: HomeAssistant, image_data: dict[str, Any]
+) -> PILImage.Image:
+    """Return a PIL Image for the selected media."""
+    media_content_id: str = image_data["media_content_id"]
+
+    # Camera and image entities resolve to never-ending MJPEG streams,
+    # so fetch a single snapshot from the entity instead.
+    for integration in camera, image_component:
+        media_source_prefix = f"media-source://{integration.DOMAIN}/"
+        if not media_content_id.startswith(media_source_prefix):
+            continue
+
+        entity_id = media_content_id.removeprefix(media_source_prefix)
+        snapshot = await integration.async_get_image(hass, entity_id)
+        return await hass.async_add_executor_job(
+            _load_image_from_bytes, snapshot.content
+        )
+
+    media = await async_resolve_media(hass, media_content_id, None)
+    if media.path is not None:
+        return await hass.async_add_executor_job(_load_image, str(media.path))
+    return await _async_download_image(hass, media.url)
+
+
 async def _async_upload_image(call: ServiceCall) -> None:
     """Handle the upload_image service call."""
     entry = _get_entry_for_device(call)
@@ -166,16 +192,7 @@ async def _async_upload_image(call: ServiceCall) -> None:
     entry.runtime_data.upload_task = current
 
     try:
-        media = await async_resolve_media(
-            call.hass, image_data["media_content_id"], None
-        )
-
-        if media.path is not None:
-            pil_image = await call.hass.async_add_executor_job(
-                _load_image, str(media.path)
-            )
-        else:
-            pil_image = await _async_download_image(call.hass, media.url)
+        pil_image = await _async_get_pil_image(call.hass, image_data)
 
         raw_key = entry.data.get(CONF_ENCRYPTION_KEY)
         if raw_key is not None and len(raw_key) != 32:
diff --git a/tests/components/opendisplay/test_services.py b/tests/components/opendisplay/test_services.py
index 903533a91d1d..e3b8a3fdac7f 100644
--- a/tests/components/opendisplay/test_services.py
+++ b/tests/components/opendisplay/test_services.py
@@ -17,6 +17,8 @@ import probatio
 import pytest
 
 from homeassistant import config_entries
+from homeassistant.components.camera import Image as CameraImage
+from homeassistant.components.image import Image as ImageEntityImage
 from homeassistant.components.opendisplay.const import CONF_ENCRYPTION_KEY, DOMAIN
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import HomeAssistantError, ServiceValidationError
@@ -128,6 +130,66 @@ async def test_upload_image_remote_url(
     mock_upload_device.upload_image.assert_called_once()
 
 
+@pytest.mark.parametrize(
+    ("media_content_id", "patch_target", "entity_id", "image_cls"),
+    [
+        pytest.param(
+            "media-source://image/image.collection",
+            "homeassistant.components.image.async_get_image",
+            "image.collection",
+            ImageEntityImage,
+            id="image_entity",
+        ),
+        pytest.param(
+            "media-source://camera/camera.front_door",
+            "homeassistant.components.camera.async_get_image",
+            "camera.front_door",
+            CameraImage,
+            id="camera_entity",
+        ),
+    ],
+)
+async def test_upload_image_from_entity(
+    hass: HomeAssistant,
+    mock_config_entry: MockConfigEntry,
+    mock_upload_device: MagicMock,
+    media_content_id: str,
+    patch_target: str,
+    entity_id: str,
+    image_cls: type[ImageEntityImage | CameraImage],
+) -> None:
+    """Test uploading a snapshot from an image or camera entity."""
+    device_id = _device_id(hass, mock_config_entry)
+
+    buf = io.BytesIO()
+    PILImage.new("RGB", (10, 10)).save(buf, format="PNG")
+
+    with (
+        patch(
+            patch_target, return_value=image_cls("image/png", buf.getvalue())
+        ) as mock_get_image,
+        patch(
+            "homeassistant.components.opendisplay.services.async_resolve_media"
+        ) as mock_resolve,
+    ):
+        await hass.services.async_call(
+            DOMAIN,
+            "upload_image",
+            {
+                "device_id": device_id,
+                "image": {
+                    "media_content_id": media_content_id,
+                    "media_content_type": "image/png",
+                },
+            },
+            blocking=True,
+        )
+
+    mock_get_image.assert_awaited_once_with(hass, entity_id)
+    mock_resolve.assert_not_called()
+    mock_upload_device.upload_image.assert_called_once()
+
+
 async def test_upload_image_invalid_device_id(
     hass: HomeAssistant,
 ) -> None: