app.py

import gradio as gr
import numpy as np
import time
import math
import random
import torch

try:
    import spaces
except:
    class spaces():
        def GPU(*args, **kwargs):
            def decorator(function):
                return lambda *dummy_args, **dummy_kwargs: function(*dummy_args, **dummy_kwargs)
            return decorator

from diffusers import StableDiffusionXLInpaintPipeline
from PIL import Image
import PIL.ImageOps
from pillow_heif import register_heif_opener

register_heif_opener()

max_64_bit_int = np.iinfo(np.int32).max

if torch.cuda.is_available():
    device = "cuda"
    floatType = torch.float16
    variant = "fp16"
else:
    device = "cpu"
    floatType = torch.float32
    variant = None

pipe = StableDiffusionXLInpaintPipeline.from_pretrained("diffusers/stable-diffusion-xl-1.0-inpainting-0.1", torch_dtype = floatType, variant = variant)
pipe = pipe.to(device)

default_local_storage = {
        "prompt":               "",
        "negative_prompt":      "Ugly, malformed, noise, blur, watermark",
        "num_inference_steps":  25,
        "guidance_scale":       7,
        "image_guidance_scale": 1.1,
        "strength":             0.99,
        "denoising_steps":      1000,
        "randomize_seed":       True,
        "seed":                 random.randint(0, max_64_bit_int),
        "debug_mode":           False
        }

def save_preferences_prompt(preferences, value):
    preferences["prompt"] = value
    return preferences

def save_preferences_negative_prompt(preferences, value):
    preferences["negative_prompt"] = value
    return preferences

def save_preferences_num_inference_steps(preferences, value):
    preferences["num_inference_steps"] = value
    return preferences

def save_preferences_guidance_scale(preferences, value):
    preferences["guidance_scale"] = value
    return preferences

def save_preferences_image_guidance_scale(preferences, value):
    preferences["image_guidance_scale"] = value
    return preferences

def save_preferences_strength(preferences, value):
    preferences["strength"] = value
    return preferences

def save_preferences_denoising_steps(preferences, value):
    preferences["denoising_steps"] = value
    return preferences

def save_preferences_randomize_seed(preferences, value):
    preferences["randomize_seed"] = value
    return preferences

def save_preferences_seed(preferences, value):
    preferences["seed"] = value
    return preferences

def save_preferences_debug_mode(preferences, value):
    preferences["debug_mode"] = value
    return preferences

def load_preferences(saved_prefs):
    saved_prefs = init_preferences(saved_prefs)
    return [
        saved_prefs["prompt"],
        saved_prefs["negative_prompt"],
        saved_prefs["num_inference_steps"],
        saved_prefs["guidance_scale"],
        saved_prefs["image_guidance_scale"],
        saved_prefs["strength"],
        saved_prefs["denoising_steps"],
        saved_prefs["randomize_seed"],
        saved_prefs["seed"],
        saved_prefs["debug_mode"]
    ]

def init_preferences(saved_prefs):
    if saved_prefs is None:
        saved_prefs = default_local_storage
    return saved_prefs

def update_seed(is_randomize_seed, seed):
    if is_randomize_seed:
        return random.randint(0, max_64_bit_int)
    return seed

def toggle_debug(is_debug_mode):
    return [gr.update(visible = True)] + [gr.update(visible = is_debug_mode)] * 2

def check(
    source_img,
    prompt,
    uploaded_mask: Image.Image,
    negative_prompt,
    num_inference_steps,
    guidance_scale,
    image_guidance_scale,
    strength,
    denoising_steps,
    is_randomize_seed,
    seed,
    debug_mode,
    progress = gr.Progress()
):
    if source_img is None:
        raise gr.Error("Please provide an image.")

    if prompt is None or prompt == "":
        raise gr.Error("Please provide a prompt input.")

def inpaint(
    source_img,
    prompt,
    uploaded_mask: Image.Image,
    negative_prompt,
    num_inference_steps,
    guidance_scale,
    image_guidance_scale,
    strength,
    denoising_steps,
    is_randomize_seed,
    seed,
    debug_mode,
    progress = gr.Progress()
):
    check(
        source_img,
        prompt,
        uploaded_mask,
        negative_prompt,
        num_inference_steps,
        guidance_scale,
        image_guidance_scale,
        strength,
        denoising_steps,
        is_randomize_seed,
        seed,
        debug_mode
    )
    start = time.time()
    progress(0, desc = "Preparing data...")

    if negative_prompt is None:
        negative_prompt = ""

    if num_inference_steps is None:
        num_inference_steps = 25

    if guidance_scale is None:
        guidance_scale = 7

    if image_guidance_scale is None:
        image_guidance_scale = 1.1

    if strength is None:
        strength = 0.99

    if denoising_steps is None:
        denoising_steps = 1000

    if seed is None:
        seed = random.randint(0, max_64_bit_int)

    random.seed(seed)
    #pipe = pipe.manual_seed(seed)

    input_image = source_img["background"].convert("RGB")

    original_height, original_width, original_channel = np.array(input_image).shape
    output_width = original_width
    output_height = original_height

    if uploaded_mask is None:
        mask_image = source_img["layers"][0].convert("RGB")
    else:
        mask_image = uploaded_mask.convert("RGB")
        mask_image = mask_image.resize((original_width, original_height))

    # Limited to 1 million pixels
    if 1024 * 1024 < output_width * output_height:
        factor = ((1024 * 1024) / (output_width * output_height))**0.5
        process_width = math.floor(output_width * factor)
        process_height = math.floor(output_height * factor)

        limitation = " Due to technical limitation, the image have been downscaled and then upscaled.";
    else:
        process_width = output_width
        process_height = output_height

        limitation = "";

    # Width and height must be multiple of 8
    if (process_width % 8) != 0 or (process_height % 8) != 0:
        if ((process_width - (process_width % 8) + 8) * (process_height - (process_height % 8) + 8)) <= (1024 * 1024):
            process_width = process_width - (process_width % 8) + 8
            process_height = process_height - (process_height % 8) + 8
        elif (process_height % 8) <= (process_width % 8) and ((process_width - (process_width % 8) + 8) * process_height) <= (1024 * 1024):
            process_width = process_width - (process_width % 8) + 8
            process_height = process_height - (process_height % 8)
        elif (process_width % 8) <= (process_height % 8) and (process_width * (process_height - (process_height % 8) + 8)) <= (1024 * 1024):
            process_width = process_width - (process_width % 8)
            process_height = process_height - (process_height % 8) + 8
        else:
            process_width = process_width - (process_width % 8)
            process_height = process_height - (process_height % 8)

    if torch.cuda.is_available():
        progress(None, desc = "Searching a GPU...")
    output_image = inpaint_on_gpu(
        seed,
        process_width,
        process_height,
        prompt,
        negative_prompt,
        input_image,
        mask_image,
        num_inference_steps,
        guidance_scale,
        image_guidance_scale,
        strength,
        denoising_steps,
        progress
    )

    if limitation != "":
        output_image = output_image.resize((output_width, output_height))

    if debug_mode == False:
        input_image = None
        mask_image = None

    end = time.time()
    secondes = int(end - start)
    minutes = math.floor(secondes / 60)
    secondes = secondes - (minutes * 60)
    hours = math.floor(minutes / 60)
    minutes = minutes - (hours * 60)
    return [
        output_image,
        ("Start again to get a different result. " if is_randomize_seed else "") + "The image has been generated in " + ((str(hours) + " h, ") if hours != 0 else "") + ((str(minutes) + " min, ") if hours != 0 or minutes != 0 else "") + str(secondes) + " sec." + limitation,
        input_image,
        mask_image
    ]

def inpaint_on_gpu2(
        seed,
        process_width,
        process_height,
        prompt,
        negative_prompt,
        input_image,
        mask_image,
        num_inference_steps,
        guidance_scale,
        image_guidance_scale,
        strength,
        denoising_steps,
        progress
):
    return input_image

@spaces.GPU(duration=420)
def inpaint_on_gpu(
        seed,
        process_width,
        process_height,
        prompt,
        negative_prompt,
        input_image,
        mask_image,
        num_inference_steps,
        guidance_scale,
        image_guidance_scale,
        strength,
        denoising_steps,
        progress
):
    progress(None, desc = "Processing...")
    return pipe(
        seeds = [seed],
        width = process_width,
        height = process_height,
        prompt = prompt,
        negative_prompt = negative_prompt,
        image = input_image,
        mask_image = mask_image,
        num_inference_steps = num_inference_steps,
        guidance_scale = guidance_scale,
        image_guidance_scale = image_guidance_scale,
        strength = strength,
        denoising_steps = denoising_steps,
        show_progress_bar = True
    ).images[0]

with gr.Blocks() as interface:
    local_storage = gr.BrowserState(default_local_storage)
    gr.HTML(
        """
        <h1 style="text-align: center;">Inpaint / Outpaint</h1>
        <p style="text-align: center;">Modifies one detail of your image, at any resolution, freely, without account, without watermark, without installation, which can be downloaded</p>
        <br/>
        <br/>
        ✨ Powered by <i>SDXL 1.0</i> artificial intellingence. For illustration purpose, not information purpose. The new content is not based on real information but imagination.
        <br/>
        <ul>
        <li>To change the <b>view angle</b> of your image, I recommend to use <i>Zero123</i>,</li>
        <li>To <b>upscale</b> your image, I recommend to use <i><a href="https://huggingface.co/spaces/Fabrice-TIERCELIN/SUPIR">SUPIR</a></i>,</li>
        <li>To <b>slightly change</b> your image, I recommend to use <i>Image-to-Image SDXL</i>,</li>
        <li>If you need to enlarge the <b>viewpoint</b> of your image, I recommend you to use <i>Uncrop</i>,</li>
        <li>To remove the <b>background</b> of your image, I recommend to use <i>BRIA</i>,</li>
        <li>To make a <b>tile</b> of your image, I recommend to use <i>Make My Image Tile</i>,</li>
        <li>To modify <b>anything else</b> on your image, I recommend to use <i>Instruct Pix2Pix</i>.</li>
        </ul>
        <br/>
        """ + ("🏃‍♀️ Estimated time: few minutes. Current device: GPU." if torch.cuda.is_available() else "🐌 Slow process... ~1 hour. Current device: CPU.") + """
        You can duplicate this space on a free account, it's designed to work on CPU, GPU and ZeroGPU.<br/>
        <a href='https://huggingface.co/spaces/Fabrice-TIERCELIN/Inpaint?duplicate=true'><img src='https://img.shields.io/badge/-Duplicate%20Space-blue?labelColor=white&style=flat&logo=data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAP5JREFUOE+lk7FqAkEURY+ltunEgFXS2sZGIbXfEPdLlnxJyDdYB62sbbUKpLbVNhyYFzbrrA74YJlh9r079973psed0cvUD4A+4HoCjsA85X0Dfn/RBLBgBDxnQPfAEJgBY+A9gALA4tcbamSzS4xq4FOQAJgCDwV2CPKV8tZAJcAjMMkUe1vX+U+SMhfAJEHasQIWmXNN3abzDwHUrgcRGmYcgKe0bxrblHEB4E/pndMazNpSZGcsZdBlYJcEL9Afo75molJyM2FxmPgmgPqlWNLGfwZGG6UiyEvLzHYDmoPkDDiNm9JR9uboiONcBXrpY1qmgs21x1QwyZcpvxt9NS09PlsPAAAAAElFTkSuQmCC&logoWidth=14'></a>
        <br/>
        ⚖️ You can use, modify and share the generated images but not for commercial uses.

        """
    )
    with gr.Column():
        source_img = gr.ImageMask(label = "Your image (click on the landscape 🌄 to upload your image; click on the pen 🖌️ to draw the mask)", type = "pil", brush=gr.Brush(colors=["#FFFFFF80"], color_mode="fixed"))
        prompt = gr.Textbox(label = "Prompt", info = "Describe the subject, the background and the style of image; 77 token limit", placeholder = "Describe what you want to see in the entire image", lines = 2)
        with gr.Accordion("Upload a mask", open = False):
             uploaded_mask = gr.Image(label = "Already made mask (black pixels will be preserved, white pixels will be redrawn)", sources = ["upload"], type = "pil")
        with gr.Accordion("Advanced options", open = False):
             negative_prompt = gr.Textbox(label = "Negative prompt", placeholder = "Describe what you do NOT want to see in the entire image", value = "Ugly, malformed, noise, blur, watermark")
             num_inference_steps = gr.Slider(minimum = 10, maximum = 100, value = 25, step = 1, label = "Number of inference steps", info = "lower=faster, higher=image quality")
             guidance_scale = gr.Slider(minimum = 1, maximum = 13, value = 7, step = 0.1, label = "Guidance Scale", info = "lower=image quality, higher=follow the prompt")
             image_guidance_scale = gr.Slider(minimum = 1, value = 1.1, step = 0.1, label = "Image Guidance Scale", info = "lower=image quality, higher=follow the image")
             strength = gr.Slider(value = 0.99, minimum = 0.01, maximum = 1.0, step = 0.01, label = "Strength", info = "lower=follow the original area, higher=redraw from scratch")
             denoising_steps = gr.Number(minimum = 0, value = 1000, step = 1, label = "Denoising", info = "lower=irrelevant result, higher=relevant result")
             randomize_seed = gr.Checkbox(label = "\U0001F3B2 Randomize seed", value = True, info = "If checked, result is always different")
             seed = gr.Slider(minimum = 0, maximum = max_64_bit_int, step = 1, randomize = True, label = "Seed")
             debug_mode = gr.Checkbox(label = "Debug mode", value = False, info = "Show intermediate results")

        submit = gr.Button("🚀 Inpaint/Outpaint", variant = "primary")

        warning = gr.HTML(value = "<center><span style='color: red;''>Your computer must not enter into standby mode.</span> On Chrome, you can force to keep a tab alive in <code>chrome://discards/</code> The generation time may vary on the number of steps and the resolution of the image.</center>", visible = False)

        inpainted_image = gr.Image(label = "Inpainted image")
        information = gr.HTML()
        original_image = gr.Image(label = "Original image", visible = False)
        mask_image = gr.Image(label = "Mask image", visible = False)

    submit.click(update_seed, inputs = [
        randomize_seed, seed
    ], outputs = [
        seed
    ], queue = False, show_progress = False).then(toggle_debug, debug_mode, [
        warning,
        original_image,
        mask_image
    ], queue = False, show_progress = False).then(check, inputs = [
        source_img,
        prompt,
        uploaded_mask,
        negative_prompt,
        num_inference_steps,
        guidance_scale,
        image_guidance_scale,
        strength,
        denoising_steps,
        randomize_seed,
        seed,
        debug_mode
    ], outputs = [], queue = False, show_progress = False).success(inpaint, inputs = [
        source_img,
        prompt,
        uploaded_mask,
        negative_prompt,
        num_inference_steps,
        guidance_scale,
        image_guidance_scale,
        strength,
        denoising_steps,
        randomize_seed,
        seed,
        debug_mode
    ], outputs = [
        inpainted_image,
        information,
        original_image,
        mask_image
    ], scroll_to_output = True)

    prompt.change(fn = save_preferences_prompt, inputs = [
        local_storage,
        prompt,
    ], outputs = [
        local_storage
    ])

    negative_prompt.change(fn = save_preferences_negative_prompt, inputs = [
        local_storage,
        negative_prompt,
    ], outputs = [
        local_storage
    ])

    num_inference_steps.change(fn = save_preferences_num_inference_steps, inputs = [
        local_storage,
        num_inference_steps,
    ], outputs = [
        local_storage
    ])

    guidance_scale.change(fn = save_preferences_guidance_scale, inputs = [
        local_storage,
        guidance_scale,
    ], outputs = [
        local_storage
    ])

    image_guidance_scale.change(fn = save_preferences_image_guidance_scale, inputs = [
        local_storage,
        image_guidance_scale,
    ], outputs = [
        local_storage
    ])

    strength.change(fn = save_preferences_strength, inputs = [
        local_storage,
        strength,
    ], outputs = [
        local_storage
    ])

    denoising_steps.change(fn = save_preferences_denoising_steps, inputs = [
        local_storage,
        denoising_steps,
    ], outputs = [
        local_storage
    ])

    randomize_seed.change(fn = save_preferences_randomize_seed, inputs = [
        local_storage,
        randomize_seed,
    ], outputs = [
        local_storage
    ])

    seed.change(fn = save_preferences_seed, inputs = [
        local_storage,
        seed,
    ], outputs = [
        local_storage
    ])

    debug_mode.change(fn = save_preferences_debug_mode, inputs = [
        local_storage,
        debug_mode,
    ], outputs = [
        local_storage
    ])

    gr.Examples(
        fn = inpaint,
	    inputs = [
            source_img,
            prompt,
            uploaded_mask,
            negative_prompt,
            num_inference_steps,
            guidance_scale,
            image_guidance_scale,
            strength,
            denoising_steps,
            randomize_seed,
            seed,
            debug_mode
        ],
	    outputs = [
            inpainted_image,
            information,
            original_image,
            mask_image
        ],
        examples = [
                [
                    "./Examples/Example7.png",
                    "A birthday cake with lit candles",
                    "./Examples/Mask7.png",
                    "Ugly, malformed, painting, drawing, cartoon, anime, 3d, noise, blur, watermark, text, error, logo, username, sitename, URL",
                    10,
                    7,
                    1.1,
                    0.99,
                    1000,
                    False,
                    42,
                    False
                ],
                [
                    "./Examples/Example1.png",
                    "A deer, in a forest landscape, ultrarealistic, realistic, photorealistic, 8k",
                    "./Examples/Mask1.webp",
                    "Ugly, malformed, painting, drawing, cartoon, anime, 3d, noise, blur, watermark, text, error, logo, username, sitename, URL",
                    25,
                    7,
                    1.1,
                    0.99,
                    1000,
                    False,
                    42,
                    False
                ],
                [
                    "./Examples/Example3.jpg",
                    "An angry old woman, ultrarealistic, realistic, photorealistic, 8k",
                    "./Examples/Mask3.gif",
                    "Ugly, malformed, painting, drawing, cartoon, anime, 3d, noise, blur, watermark, text, error, logo, username, sitename, URL",
                    25,
                    7,
                    1.5,
                    0.99,
                    1000,
                    False,
                    42,
                    False
                ],
                [
                    "./Examples/Example4.gif",
                    "A laptop, ultrarealistic, realistic, photorealistic, 8k",
                    "./Examples/Mask4.bmp",
                    "Ugly, malformed, painting, drawing, cartoon, anime, 3d, noise, blur, watermark, text, error, logo, username, sitename, URL",
                    25,
                    7,
                    1.1,
                    0.99,
                    1000,
                    False,
                    42,
                    False
                ],
                [
                    "./Examples/Example5.bmp",
                    "A sand castle, ultrarealistic, realistic, photorealistic, 8k",
                    "./Examples/Mask5.png",
                    "Ugly, malformed, painting, drawing, cartoon, anime, 3d, noise, blur, watermark, text, error, logo, username, sitename, URL",
                    50,
                    7,
                    1.5,
                    0.5,
                    1000,
                    False,
                    42,
                    False
                ],
                [
                    "./Examples/Example2.webp",
                    "A cat, ultrarealistic, realistic, photorealistic, 8k",
                    "./Examples/Mask2.png",
                    "Ugly, malformed, painting, drawing, cartoon, anime, 3d, noise, blur, watermark, text, error, logo, username, sitename, URL",
                    25,
                    7,
                    1.1,
                    0.99,
                    1000,
                    False,
                    42,
                    False
                ],
                [
                    "./Examples/Example6.webp",
                    "A car, in the street, in a city, photorealistic, realistic, extremely detailled, 8k",
                    "./Examples/Mask6.webp",
                    "Forest, wood, trees, ugly, malformed, painting, drawing, cartoon, anime, 3d, noise, blur, watermark, text, error, logo, username, sitename, URL",
                    25,
                    7,
                    1.1,
                    0.99,
                    1000,
                    False,
                    42,
                    False
                ],
            ],
        cache_examples = False,
    )
    
    gr.Markdown(
        """
        ## How to prompt your image

        To easily read your prompt, start with the subject, then describ the pose or action, then secondary elements, then the background, then the graphical style, then the image quality:
        ```
        A Vietnamese woman, red clothes, walking, smilling, in the street, a car on the left, in a modern city, photorealistic, 8k
        ```

        You can use round brackets to increase the importance of a part:
        ```
        A Vietnamese woman, (red clothes), walking, smilling, in the street, a car on the left, in a modern city, photorealistic, 8k
        ```

        You can use several levels of round brackets to even more increase the importance of a part:
        ```
        A Vietnamese woman, ((red clothes)), (walking), smilling, in the street, a car on the left, in a modern city, photorealistic, 8k
        ```

        You can use number instead of several round brackets:
        ```
        A Vietnamese woman, (red clothes:1.5), (walking), smilling, in the street, a car on the left, in a modern city, photorealistic, 8k
        ```

        You can do the same thing with square brackets to decrease the importance of a part:
        ```
        A [Vietnamese] woman, (red clothes:1.5), (walking), smilling, in the street, a car on the left, in a modern city, photorealistic, 8k
        ```

        To easily read your negative prompt, organize it the same way as your prompt (not important for the AI):
        ```
        man, boy, hat, running, tree, bicycle, forest, drawing, painting, cartoon, 3d, monochrome, blurry, noisy, bokeh
        ```
        """
    )

    # Load saved preferences when the page loads
    interface.load(
        fn=load_preferences, inputs = [
        local_storage
    ], outputs = [
       prompt,
       negative_prompt,
       num_inference_steps,
       guidance_scale,
       image_guidance_scale,
       strength,
       denoising_steps,
       randomize_seed,
       seed,
       debug_mode
    ]
    )

    interface.queue().launch(mcp_server=True)