app.py

# Copyright 2023-2025 Marigold Team, ETH Zürich. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# --------------------------------------------------------------------------
# More information about Marigold:
#   https://marigoldmonodepth.github.io
#   https://marigoldcomputervision.github.io
# Efficient inference pipelines are now part of diffusers:
#   https://huggingface.co/docs/diffusers/using-diffusers/marigold_usage
#   https://huggingface.co/docs/diffusers/api/pipelines/marigold
# Examples of trained models and live demos:
#   https://huggingface.co/prs-eth
# Related projects:
#   https://marigolddepthcompletion.github.io/
#   https://rollingdepth.github.io/
# Citation (BibTeX):
#   https://github.com/prs-eth/Marigold#-citation
#   https://github.com/prs-eth/Marigold-DC#-citation
#   https://github.com/prs-eth/rollingdepth#-citation
# --------------------------------------------------------------------------

import os
os.system("pip freeze")
import spaces

import gradio as gr
import torch as torch
from diffusers import MarigoldDepthPipeline, DDIMScheduler
from gradio_dualvision import DualVisionApp
from huggingface_hub import login
from PIL import Image

CHECKPOINT = "prs-eth/marigold-depth-v1-1"

if "HF_TOKEN_LOGIN" in os.environ:
    login(token=os.environ["HF_TOKEN_LOGIN"])

device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
dtype = torch.bfloat16 if torch.cuda.is_available() else torch.float32

pipe = MarigoldDepthPipeline.from_pretrained(CHECKPOINT)
pipe.scheduler = DDIMScheduler.from_config(pipe.scheduler.config, timestep_spacing="trailing")
pipe = pipe.to(device=device, dtype=dtype)
try:
    import xformers
    pipe.enable_xformers_memory_efficient_attention()
except:
    pass


class MarigoldDepthApp(DualVisionApp):
    DEFAULT_SEED = 2024
    DEFAULT_ENSEMBLE_SIZE = 1
    DEFAULT_DENOISE_STEPS = 4
    DEFAULT_PROCESSING_RES = 768

    def make_header(self):
        gr.Markdown(
            """
            <h2><a href="https://huggingface.co/spaces/prs-eth/marigold" style="color: black;">Marigold Depth Estimation</a></h2>
            """
        )
        with gr.Row(elem_classes="remove-elements"):
            gr.Markdown(
                f"""
                <p align="center">
                <a title="Website" href="https://marigoldcomputervision.github.io/" target="_blank" rel="noopener noreferrer" style="display: inline-block;">
                    <img src="https://img.shields.io/badge/%E2%99%A5%20Project%20-Website-blue">
                </a>
                <a title="diffusers" href="https://huggingface.co/docs/diffusers/using-diffusers/marigold_usage" target="_blank" rel="noopener noreferrer" style="display: inline-block;">
                    <img src="https://img.shields.io/badge/%F0%9F%A7%A8%20Read_diffusers-Tutorial-yellow?labelColor=green">
                </a>
                <a title="arXiv" href="https://arxiv.org/abs/2505.09358" target="_blank" rel="noopener noreferrer" style="display: inline-block;">
                    <img src="https://img.shields.io/badge/%F0%9F%93%84%20Read%20-Paper-AF3436">
                </a>
                <a title="Github" href="https://github.com/prs-eth/marigold" target="_blank" rel="noopener noreferrer" style="display: inline-block;">
                    <img src="https://img.shields.io/github/stars/prs-eth/marigold?label=GitHub%20%E2%98%85&logo=github&color=C8C" alt="badge-github-stars">
                </a>
                <a title="Image Normals" href="https://huggingface.co/spaces/prs-eth/marigold-normals" target="_blank" rel="noopener noreferrer" style="display: inline-block;">
                    <img src="https://img.shields.io/badge/%F0%9F%A4%97%20Image%20Normals%20-Demo-yellow" alt="imagedepth">
                </a>
                <a title="Image Intrinsics" href="https://huggingface.co/spaces/prs-eth/marigold-iid" target="_blank" rel="noopener noreferrer" style="display: inline-block;">
                    <img src="https://img.shields.io/badge/%F0%9F%A4%97%20Image%20Intrinsics%20-Demo-yellow" alt="imagedepth">
                </a>
                <a title="LiDAR Depth" href="https://huggingface.co/spaces/prs-eth/marigold-dc" target="_blank" rel="noopener noreferrer" style="display: inline-block;">
                    <img src="https://img.shields.io/badge/%F0%9F%A4%97%20LiDAR%20Depth%20-Demo-yellow" alt="imagedepth">
                </a>
                <a title="Video Depth" href="https://huggingface.co/spaces/prs-eth/rollingdepth" target="_blank" rel="noopener noreferrer" style="display: inline-block;">
                    <img src="https://img.shields.io/badge/%F0%9F%A4%97%20Video%20Depth%20-Demo-yellow" alt="videodepth">
                </a>
                <a title="Depth-to-3D" href="https://huggingface.co/spaces/prs-eth/depth-to-3d-print" target="_blank" rel="noopener noreferrer" style="display: inline-block;">
                    <img src="https://img.shields.io/badge/%F0%9F%A4%97%20Depth--to--3D%20-Demo-yellow" alt="depthto3d">
                </a>
                <a title="Social" href="https://twitter.com/antonobukhov1" target="_blank" rel="noopener noreferrer" style="display: inline-block;">
                    <img src="https://shields.io/twitter/follow/:?label=Subscribe%20for%20updates!" alt="social">
                </a>
                </p>                    
                <p align="center" style="margin-top: 0px;">
                    Upload a photo or select an example below to compute depth maps in real time.
                    Use the slider to reveal areas of interest.
                    Use the radio-buttons to switch between modalities.
                    Check our other demo badges above for new or relocated functionality.
                </p>
                """
        )

    def build_user_components(self):
        with gr.Column():
            ensemble_size = gr.Slider(
                label="Ensemble size",
                minimum=1,
                maximum=10,
                step=1,
                value=self.DEFAULT_ENSEMBLE_SIZE,
            )
            denoise_steps = gr.Slider(
                label="Number of denoising steps",
                minimum=1,
                maximum=20,
                step=1,
                value=self.DEFAULT_DENOISE_STEPS,
            )
            processing_res = gr.Radio(
                [
                    ("Native", 0),
                    ("Recommended", 768),
                ],
                label="Processing resolution",
                value=self.DEFAULT_PROCESSING_RES,
            )
        return {
            "ensemble_size": ensemble_size,
            "denoise_steps": denoise_steps,
            "processing_res": processing_res,
        }

    def process(self, image_in: Image.Image, **kwargs):
        ensemble_size = kwargs.get("ensemble_size", self.DEFAULT_ENSEMBLE_SIZE)
        denoise_steps = kwargs.get("denoise_steps", self.DEFAULT_DENOISE_STEPS)
        processing_res = kwargs.get("processing_res", self.DEFAULT_PROCESSING_RES)
        generator = torch.Generator(device=device).manual_seed(self.DEFAULT_SEED)

        pipe_out = pipe(
            image_in,
            ensemble_size=ensemble_size,
            num_inference_steps=denoise_steps,
            processing_resolution=processing_res,
            batch_size=1 if processing_res == 0 else 2,
            output_uncertainty=ensemble_size >= 3,
            generator=generator,
        )

        depth_vis = pipe.image_processor.visualize_depth(pipe_out.prediction)[0]
        depth_16bit = pipe.image_processor.export_depth_to_16bit_png(pipe_out.prediction)[0]

        out_modalities = {
            "Depth Visualization": depth_vis,
            "Depth 16-bit": depth_16bit,
        }
        if ensemble_size >= 3:
            uncertainty = pipe.image_processor.visualize_uncertainty(pipe_out.uncertainty)[0]
            out_modalities["Uncertainty"] = uncertainty

        out_settings = {
            "ensemble_size": ensemble_size,
            "denoise_steps": denoise_steps,
            "processing_res": processing_res,
        }
        return out_modalities, out_settings


with MarigoldDepthApp(
    title="Marigold Depth",
    examples_path="files",
    examples_per_page=12,
    squeeze_canvas=True,
    spaces_zero_gpu_enabled=True,
) as demo:
    demo.queue(
        api_open=False,
    ).launch(
        server_name="0.0.0.0",
        server_port=7860,
    )