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22 lines
602 B
C++
22 lines
602 B
C++
/*
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* Copyright (c) 2023, Nico Weber <thakis@chromium.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibGfx/CIELAB.h>
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namespace Gfx {
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// Returns a number between 0 and 100 that describes how far apart two colors are in human perception.
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// A return value < 1 means that the two colors are not noticeably different.
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// The larger the return value, the easier it is to tell the two colors apart.
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// Works better for colors that are somewhat "close".
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//
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// You can use ICC::sRGB()->to_lab() to convert sRGB colors to CIELAB.
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float DeltaE(CIELAB const&, CIELAB const&);
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}
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