Line-Art Extraction & Cleanup¶
Image & 2D Art
Open Source¶
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AniLines (Anime Lineart Extractor) Discovered by AI
2025
An open-source tool designed to extract high-quality, detailed line art from anime images and videos (especially cel animation) with minimal artifacts.
animelineartsketch-extraction -
MixSA: Training-free Reference-based Sketch Extraction via Mixture-of-Self-Attention Discovered by AI
2025
A training-free sketch extraction method that leverages diffusion priors and a mixture-of-self-attention mechanism to extract sketches in various artistic styles from color images using a reference sketch.
diffusionlineartsketch-extraction -
One-Shot Reference-based Structure-Aware Image to Sketch Synthesis Discovered by AI
2025
A training-free, adjustment-free sketch synthesis method that integrates high and low-frequency information during the diffusion process to generate sketches faithful to both the reference sketch style and the layout of the content image.
diffusionlineartsketch -
StrokeFusion Discovered by AI
2025
A two-stage framework for vector sketch generation that combines joint stroke-UDF encoding with latent sequence diffusion. It addresses the limitations of raster-format artifacts and vector-format structural incoherence to produce clean, recognizable stroke-based line drawings.
diffusionsketchstrokevector -
SwiftSketch Discovered by AI
2025
A diffusion-based framework for fast and high-quality image-to-vector sketch generation. It converts raster images into clean, stylized vector line drawings by leveraging diffusion priors to capture both geometric contours and semantic abstraction.
diffusionlineartsketchvector -
Anyline (ComfyUI-Anyline) Discovered by AI
2024
A fast, accurate, and highly detailed line detection preprocessor designed for ControlNet and image conditioning. It excels at extracting clean object edges, fine details, and textual content from a wide variety of input images.
comfyuicontrolnetlineartpreprocessor -
ComfyUI Img2DrawingAssistants Discovered by AI
2024
A collection of ComfyUI custom nodes designed to assist in converting raster images into clean sketches and line art, supporting both grayscale and colored line outputs.
comfyuiextractionlineartsketch -
Deep Sketch Vectorization Discovered by AI
2024
A sketch vectorization framework that treats the task as a surface extraction problem from an unsigned distance field. It utilizes a two-stage neural network and a dual contouring post-processing algorithm to convert raster sketches into clean vector curves.
siggraphsketchsvgvectorization -
Representative Feature Extraction During Diffusion Process for Sketch Extraction with One Example Discovered by AI
2024
DiffSketch extracts stylized sketches from images by selecting representative features from a pretrained diffusion model, trainable with just a single manual drawing example.
diffusionlineartsketch-extraction -
Stylized Face Sketch Extraction via Generative Prior with Limited Data Discovered by AI
2024
StyleSketch extracts high-resolution stylized sketches from face images using the rich semantic features of a pretrained StyleGAN, requiring only limited training data.
lineartsketch-extractionstylegan -
Semi-supervised Reference-based Sketch Extraction Discovered by AI
2023
A multi-modal sketch extraction framework that imitates the style of a given reference sketch using unpaired data training in a semi-supervised manner. It leverages contrastive learning to align content and style features for personalized line-art generation.
contrastive-learninglineartsketchstyle-transfer -
TEED (Tiny and Efficient Edge Detector) Discovered by AI
2023
A lightweight convolutional neural network with only 58K parameters designed for fast, high-quality edge detection and line art extraction, widely used in ControlNet preprocessors like Anyline.
controlnetedge-detectionlightweightlineart -
Informative Drawings Discovered by AI
2022
An unpaired image-to-image translation method that learns to generate line drawings conveying both the 3D geometry and semantic meaning of input photographs. It produces clean, artistic sketches without requiring paired training data.
geometrylineartsketchunpaired -
Reference Based Sketch Extraction via Attention Mechanism Discovered by AI
2022
A deep learning model that extracts sketches from color images using an attention mechanism to match the line style of a given reference sketch while preserving the structural content of the original image.
attentionlineartsketch -
2021
A sketch extractor that produces clean line art from anime and illustration images, useful for reference, retracing, and colorization pipelines.
animelineart -
Anime2Sketch Discovered by AI
2021
A sketch and line art extractor optimized for anime illustrations, manga, and digital art, based on adversarial open-domain adaptation.
animelineartmangasketch-extraction -
General Virtual Sketching Framework for Vector Line Art Discovered by AI
2021
A framework for vector line art generation, rough sketch simplification, and photograph-to-vector line drawing using a virtual pen model that learns to draw strokes dynamically.
lineartsketch-simplificationvectorization -
LineDistiller Discovered by AI
2020
A data-driven line extraction tool for 2D anime, manga, and illustrations. It builds upon deep learning architectures to extract high-quality, clean structural lines from colored illustrations, facilitating downstream tasks like colorization and sketch simplification.
animeextractionlineartmanga -
sketchKeras Discovered by AI
2018
A popular U-Net based neural network model designed to convert finished color paintings and anime illustrations into clean, hand-drawn style pencil sketches and line art.
keraslineartsketchu-net -
Deep Extraction of Manga Structural Lines Discovered by AI
2017
A deep learning-based framework for extracting clean structural lines from manga and anime images, removing screentones, shading, and background noise.
lineartmangasketch-extraction -
Mastering Sketching: Adversarial Augmentation for Structured Prediction Discovered by AI
2017
An adversarial training framework for sketch simplification that converts rough sketches into clean line drawings by training a simplification network jointly with a discriminator.
adversariallineartsketch-simplification -
Sketch Simplification Discovered by AI
2016
A deep learning framework for simplifying rough, hand-drawn sketches into clean, single-line drawings. It utilizes fully convolutional networks trained on paired rough and clean sketches to automate the tedious cleanup process in animation and illustration workflows.
cleanuplineartsimplificationsketch
Proprietary / Industry Tools¶
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copainter Discovered by AI
2024
An AI-powered illustration assistant designed for artists, manga creators, and animators, offering features such as automated line art extraction, undercoating, coloring, and PSD layer separation.
colorizationillustrationlineart-extraction -
Copainter Line Art Extraction Discovered by AI
2024
An AI-powered web tool designed for digital artists that extracts clean line art from rough sketches or colored illustrations, facilitating the coloring and finishing workflow.
illustrationlineartproprietarysketch-cleanup -
SketchEdge Discovered by AI
2023
An AI-powered web service designed to extract clean, hand-drawn-style line art from photos and images. It is widely used by creators and manga artists to generate high-quality backgrounds and reference materials from real-world photography.
background-generationlineartmangasaas
