Alghamdi, Hana and Grogan, Mairéad and Dahyot, Rozenn
(2019)
Patch-Based Colour Transfer with Optimal Transport.
2019 27th European Signal Processing Conference (EUSIPCO).
ISSN 2076-1465
Abstract
This paper proposes a new colour transfer method
with Optimal transport to transfer the colour of a source image to
match the colour of a target image of the same scene. We propose
to formulate the problem in higher dimensional spaces (than
colour spaces) by encoding overlapping neighborhoods of pixels
containing colour information as well as spatial information.
Since several recoloured candidates are now generated for each
pixel in the source image, we define an original procedure
to efficiently merge these candidates which allows denoising
and artifact removal as well as colour transfer. Experiments
show quantitative and qualitative improvements over previous
colour transfer methods. Our method can be applied to different
contexts of colour transfer such as transferring colour between
different camera models, camera settings, illumination conditions
and colour retouch styles for photographs
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