Updated the image default TAG to release

PiperOrigin-RevId: 877893209

Author: vertex-mg-bot

notebooks/community/model_garden/model_garden_remote_sensing_batch_prediction.ipynb

@@ -9,7 +9,7 @@
       },
       "outputs": [],
       "source": [
-        "# Copyright 2025 Google LLC\n",
+        "# Copyright 2026 Google LLC\n",
         "#\n",
         "# Licensed under the Apache License, Version 2.0 (the \"License\");\n",
         "# you may not use this file except in compliance with the License.\n",
@@ -125,7 +125,7 @@
         "\n",
         "def to_b64_png(img: Image.Image) -> str:\n",
         "    \"\"\"Converts the `img` to a b64 encoded PNG bytes.\"\"\"\n",
-        "    return base64.b64encode(to_png_bytes(img)).decode()\n",
+        "    return base64.urlsafe_b64encode(to_png_bytes(img)).decode()\n",
         "\n",
         "\n",
         "def write_jsonl_instances(\n",

notebooks/community/model_garden/model_garden_remote_sensing_deployment.ipynb

@@ -95,7 +95,7 @@
         ")\n",
         "\n",
         "# Model configuration & utils\n",
-        "SERVE_DOCKER_URI = \"us-docker.pkg.dev/vertex-ai-restricted/vertex-vision-model-garden-dockers/remote-sensing-serve-tf-gpu:latest\"\n",
+        "SERVE_DOCKER_URI = \"us-docker.pkg.dev/vertex-ai-restricted/vertex-vision-model-garden-dockers/remote-sensing-serve-tf-gpu:release\"\n",
         "MODEL_CONFIGS = {\n",
         "    \"OWLVIT\": (\n",
         "        \"earth-ai-imagery-owlvit-eap-10-2025\",\n",
@@ -268,7 +268,7 @@
         "def _b64_png(image: Image.Image) -> str:\n",
         "    arr_bytes = io.BytesIO()\n",
         "    image.save(arr_bytes, format=\"PNG\")\n",
-        "    return base64.b64encode(arr_bytes.getvalue()).decode(\"utf-8\")\n",
+        "    return base64.urlsafe_b64encode(arr_bytes.getvalue()).decode(\"utf-8\")\n",
         "\n",
         "\n",
         "# Download sample images\n",