green color From Yuv - Android Graphics

Android examples for Graphics:Color

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Description

green color From Yuv

Demo Code

/* //  w w  w. java 2  s.com
 * 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 greenFromYuv(byte y, byte u, byte v) {
        int yy = (0xff & y) - 16;
        if (yy < 0)
            yy = 0;

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

        int green = (y1192 - 833 * vv - 400 * uu) >> 10;
        if (green < 0)
            green = 0;
        if (green > 255)
            green = 255;
        return green;
    }
}

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