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Editable Image Elements for Controllable Synthesis (2404.16029v1)

Published 24 Apr 2024 in cs.CV

Abstract: Diffusion models have made significant advances in text-guided synthesis tasks. However, editing user-provided images remains challenging, as the high dimensional noise input space of diffusion models is not naturally suited for image inversion or spatial editing. In this work, we propose an image representation that promotes spatial editing of input images using a diffusion model. Concretely, we learn to encode an input into "image elements" that can faithfully reconstruct an input image. These elements can be intuitively edited by a user, and are decoded by a diffusion model into realistic images. We show the effectiveness of our representation on various image editing tasks, such as object resizing, rearrangement, dragging, de-occlusion, removal, variation, and image composition. Project page: https://jitengmu.github.io/Editable_Image_Elements/

Editable Image Elements for Controllable Synthesis

Overview of the Proposed Method

In this work, the authors introduce a novel image representation optimized for intuitive spatial editing via a text-guided synthesis task using diffusion models. The core innovation lies in encoding user-provided input images into "image elements." These elements are essentially descriptively rich, editable tokens that represent distinct image regions and compose the full image when combined. This approach facilitates high-fidelity reconstructions of the original input, along with allowing users to perform detailed modifications like resizing, dragging, removing, and rearranging elements within the image. One of the key highlights is the implementation's fast runtime, which significantly reduces the need for iterative optimization generally associated with image editing tasks.

Key Results and Contributions

  • Editable Image Elements: Breaking down complete images into separable, individually editable segments that can be adjusted in terms of position, size, and presence.
  • High-Fidelity Reconstruction: Enables the perfect recreation of the original images using encoded elements, all achievable within a low runtime devoid of optimization loops.
  • Diffusion Model Integration: Utilizes a strong diffusion-model based decoder, ensuring that generated images remain realistic even after extensive modifications of the image elements.

Detailed System Architecture

The system pipeline includes the encoding of input images into editable elements, then decoding them back into realistically edited images. The initial encoding isolates parts of an image into distinct elements. Each element encodes not only the appearance but also positional information which is symbolized by centroids and bounding dimensions. A novel information is that these elements go beyond traditional convolutional grid adherence, aligning with semantically meaningful image segments.

Once encoded, users can manipulate these elements via provided control interfaces. Post manipulation, the system's decoder, based on advanced diffusion models, processes the rearranged elements to synthesize a new, realistic image. This editing process is powered by both the positional and semantic understanding of each element, allowing complex and granular image edits.

Implications and Future Scope

From a theoretical standpoint, the proposed method bridges the gap between high-fidelity image transformation tasks and user-friendly editing techniques, leveraging the strengths of diffusion models. Practically, it promises significant improvements in tasks like digital image editing for media creation, personalized content creation, and even interactive design and art installations.

Future Directions:

  1. High-Resolution Image Handling: Enhancing the method to handle higher resolution images without compromise on editing flexibility or output quality.
  2. Expansion to Style Editing: Progressing beyond spatial edits to include style adaptations and other aesthetic modifications.
  3. Integrating with Synthesis Models: A potential unification with generative models could allow seamless transition between image editing and image creation, fully encapsulated within a singular framework driven by editable image elements.

In summary, the presented methodology provides a robust framework for controlled image synthesis using editable elements, ideally aligning with ongoing advancements in generative modeling and AI-driven art creation tools. This paves the way for further explorations into more intuitive, efficient, and versatile image manipulation techniques.

User Edit Pencil Streamline Icon: https://streamlinehq.com
Authors (7)
  1. Jiteng Mu (10 papers)
  2. Richard Zhang (61 papers)
  3. Eli Shechtman (102 papers)
  4. Nuno Vasconcelos (79 papers)
  5. Xiaolong Wang (243 papers)
  6. Taesung Park (24 papers)
  7. Michaƫl Gharbi (17 papers)
Citations (6)
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