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/*
* Copyright 2021 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.ux.material.libmonet.quantize;
/** An interface to allow use of different color spaces by quantizers. */
public interface PointProvider {
/** The four components in the color space of an sRGB color. */
public double[] fromInt(int argb);
/** The ARGB (i.e. hex code) representation of this color. */
public int toInt(double[] point);
/**
* Squared distance between two colors. Distance is defined by scientific color spaces and
* referred to as delta E.
*/
public double distance(double[] a, double[] b);
}
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