2023-10-31 12:46:02 +08:00
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{"cells": [{"cell_type": "markdown", "id": "302934307671667531413257853548643485645", "metadata": {}, "source": ["# Gradio Demo: depth_estimation\n", "### A demo for predicting the depth of an image and generating a 3D model of it.\n", " "]}, {"cell_type": "code", "execution_count": null, "id": "272996653310673477252411125948039410165", "metadata": {}, "outputs": [], "source": ["!pip install -q gradio torch git+https://github.com/nielsrogge/transformers.git@add_dpt_redesign#egg=transformers numpy Pillow jinja2 open3d"]}, {"cell_type": "code", "execution_count": null, "id": "288918539441861185822528903084949547379", "metadata": {}, "outputs": [], "source": ["# Downloading files from the demo repo\n", "import os\n", "os.mkdir('examples')\n", "!wget -q -O examples/1-jonathan-borba-CgWTqYxHEkg-unsplash.jpg https://github.com/gradio-app/gradio/raw/main/demo/depth_estimation/examples/1-jonathan-borba-CgWTqYxHEkg-unsplash.jpg\n", "!wget -q https://github.com/gradio-app/gradio/raw/main/demo/depth_estimation/packages.txt"]}, {"cell_type": "code", "execution_count": null, "id": "44380577570523278879349135829904343037", "metadata": {}, "outputs": [], "source": ["import gradio as gr\n", "from transformers import DPTFeatureExtractor, DPTForDepthEstimation\n", "import torch\n", "import numpy as np\n", "from PIL import Image\n", "import open3d as o3d\n", "from pathlib import Path\n", "\n", "feature_extractor = DPTFeatureExtractor.from_pretrained(\"Intel/dpt-large\")\n", "model = DPTForDepthEstimation.from_pretrained(\"Intel/dpt-large\")\n", "\n", "def process_image(image_path):\n", " image_path = Path(image_path)\n", " image_raw = Image.open(image_path)\n", " image = image_raw.resize(\n", " (800, int(800 * image_raw.size[1] / image_raw.size[0])),\n", " Image.Resampling.LANCZOS)\n", "\n", " # prepare image for the model\n", " encoding = feature_extractor(image, return_tensors=\"pt\")\n", "\n", " # forward pass\n", " with torch.no_grad():\n", " outputs = model(**encoding)\n", " predicted_depth = outputs.predicted_depth\n", "\n", " # interpolate to original size\n", " prediction = torch.nn.functional.interpolate(\n", " predicted_depth.unsqueeze(1),\n", " size=image.size[::-1],\n", " mode=\"bicubic\",\n", " align_corners=False,\n", " ).squeeze()\n", " output = prediction.cpu().numpy()\n", " depth_image = (output * 255 / np.max(output)).astype('uint8')\n", " try:\n", " gltf_path = create_3d_obj(np.array(image), depth_image, image_path)\n", " img = Image.fromarray(depth_image)\n", " return [img, gltf_path, gltf_path]\n", " except Exception:\n", " gltf_path = create_3d_obj(\n", " np.array(image), depth_image, image_path, depth=8)\n", " img = Image.fromarray(depth_image)\n", " return [img, gltf_path, gltf_path]\n", " except:\n", " print(\"Error reconstructing 3D model\")\n", " raise Exception(\"Error reconstructing 3D model\")\n", "\n", "\n", "def create_3d_obj(rgb_image, depth_image, image_path, depth=10):\n", " depth_o3d = o3d.geometry.Image(depth_image)\n", " image_o3d = o3d.geometry.Image(rgb_image)\n", " rgbd_image = o3d.geometry.RGBDImage.create_from_color_and_depth(\n", " image_o3d, depth_o3d, convert_rgb_to_intensity=False)\n", " w = int(depth_image.shape[1])\n", " h = int(depth_image.shape[0])\n", "\n", " camera_intrinsic = o3d.camera.PinholeCameraIntrinsic()\n", " camera_intrinsic.set_intrinsics(w, h, 500, 500, w/2, h/2)\n", "\n", " pcd = o3d.geometry.PointCloud.create_from_rgbd_image(\n", " rgbd_image, camera_intrinsic)\n", "\n", " print('normals')\n", " pcd.normals = o3d.utility.Vector3dVector(\n", " np.zeros((1, 3))) # invalidate existing normals\n", " pcd.estimate_normals(\n", " search_param=o3d.geometry.KDTreeSearchParamHybrid(radius=0.01, max_nn=30))\n", " pcd.orient_normals_towards_camera_location(\n", " camera_location=np.array([0., 0., 1000.]))\n", " pcd.transform([[1, 0, 0, 0],
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