get Aged Bitmap - Android Graphics

Android examples for Graphics:Bitmap Effect

  1. HOME
  2. Android
  3. Graphics
  4. Bitmap Effect

Description

get Aged Bitmap

Demo Code


import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.Bitmap.Config;
import android.graphics.BitmapFactory;
import android.graphics.BitmapFactory.Options;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.LinearGradient;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.PorterDuff.Mode;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Shader.TileMode;
import android.graphics.YuvImage;
import android.graphics.drawable.Drawable;

public class Main{
    //  ww w . j  a v a 2s.  c om

    private static final String TAG = ImgUtil.class.getSimpleName();
    
    public static Bitmap getAgedBitmap(Bitmap src, boolean recycleSrc) {
        Bitmap aged = ageBitmap(src.copy(Config.RGB_565, true));
        if (recycleSrc && aged != src) {
            src.recycle();
        }
        return aged;
    }
    
    public static Bitmap ageBitmap(Bitmap src) {
        if (!src.isMutable()) {
            LogUtil.w(TAG, "ageBitmap", "source bitmap is not mutable");
            return src;
        }

        int width = src.getWidth();
        int height = src.getHeight();
        int pixColor = 0;
        int pixR = 0;
        int pixG = 0;
        int pixB = 0;
        int newR = 0;
        int newG = 0;
        int newB = 0;
        int[] pixels = new int[width * height];
        src.getPixels(pixels, 0, width, 0, 0, width, height);
        for (int i = 0; i < height; i++) {
            for (int k = 0; k < width; k++) {
                pixColor = pixels[width * i + k];
                pixR = Color.red(pixColor);
                pixG = Color.green(pixColor);
                pixB = Color.blue(pixColor);
                newR = (int) (0.393 * pixR + 0.769 * pixG + 0.189 * pixB);
                newG = (int) (0.349 * pixR + 0.686 * pixG + 0.168 * pixB);
                newB = (int) (0.272 * pixR + 0.534 * pixG + 0.131 * pixB);
                int newColor = Color.argb(255, newR > 255 ? 255 : newR,
                        newG > 255 ? 255 : newG, newB > 255 ? 255 : newB);
                pixels[width * i + k] = newColor;
            }
        }
        src.setPixels(pixels, 0, width, 0, 0, width, height);
        return src;
    }
}

Related Tutorials