NDLI: Pigment-based recoloring of watercolor paintings

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Pigment-based recoloring of watercolor paintings

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Pigment-based recoloring of watercolor paintings

Content Provider	ACM Digital Library
Author	Shambik, Yakov Aharoni-Mack, Elad Lischinski, Dani
Abstract	The color palette used by an artist when creating a painting is an important tool for expressing emotion, directing attention, and more. However, choosing a palette is an intricate task that requires considerable skill and experience. In this work, we introduce a new tool designed to allow artists to experiment with alternative color palettes for existing watercolor paintings. This could be useful for generating alternative renditions for an existing painting, or for aiding in the selection of a palette for a new painting, related to an existing one. Our tool first estimates the original pigment-based color palette used to create the painting, and then decomposes the painting into a collection of pigment channels, each corresponding to a single palette color. In both of these tasks, we employ a version of the Kubelka-Munk model, which predicts the reflectance of a given mixture of pigments. Each channel in the decomposition is a piecewise-smooth map that specifies the concentration of one of the colors in the palette across the image. Another estimated map specifies the total thickness of the pigments across the image. The mixture of these pigment channels, also according to the Kubelka-Munk model, reconstructs the original painting. The artist is then able to manipulate the individual palette colors, obtaining results by remixing the pigment channels at interactive rates.
Starting Page	1
Ending Page	11
Page Count	11
File Format	PDF
ISBN	9781450350815
DOI	10.1145/3092919.3092926
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2017-07-29
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Kubelka-munk Pigments Recoloring Decomposition Watercolor Color-transfer
Content Type	Text
Resource Type	Article

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