red color From Yuv - Android Graphics

Android examples for Graphics:Color

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Description

red color From Yuv

Demo Code

/* //from   www. j ava  2s.co  m
 * Copyright 2012 Google Inc. All Rights Reserved.
 *
 * 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.java2s;

public class Main {
    public static int redFromYuv(byte y, byte u, byte v) {
        int yy = (0xff & y) - 16;
        if (yy < 0)
            yy = 0;

        int vv = (0xff & v) - 128;
        int y1192 = 1192 * yy;

        int red = (y1192 + 1634 * vv) >> 10;
        if (red < 0)
            red = 0;
        if (red > 255)
            red = 255;
        return red;
    }
}

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