Examples with ColorMatrix android.graphics.ColorMatrix used on opensource projects

Example 11 with ColorMatrix

use of android.graphics.ColorMatrix in project Lazy by l123456789jy.

the class ImageProcessor method lum.

/**
     * 亮度处理
     * @param lumValue 新的亮度值
     * @return 改变了亮度值之后的图片
     */
public Bitmap lum(int lumValue) {
    //计算出符合要求的亮度值
    float newlumValue = lumValue * 1.0F / 127;
    //创建一个颜色矩阵
    ColorMatrix lumColorMatrix = new ColorMatrix();
    //设置亮度值
    lumColorMatrix.setScale(newlumValue, newlumValue, newlumValue, 1);
    //创建一个画笔并设置其颜色过滤器
    Paint paint = new Paint();
    paint.setColorFilter(new ColorMatrixColorFilter(lumColorMatrix));
    //创建一个新的图片并创建画布
    Bitmap newBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(newBitmap);
    //将原图使用给定的画笔画到画布上
    canvas.drawBitmap(bitmap, 0, 0, paint);
    return newBitmap;
}

Example 12 with ColorMatrix

use of android.graphics.ColorMatrix in project Lazy by l123456789jy.

the class BitmapUtil method hue.

/**
     * 色相处理
     *
     * @param bitmap   原图
     * @param hueValue 新的色相值
     * @return 改变了色相值之后的图片
     */
public static Bitmap hue(Bitmap bitmap, int hueValue) {
    // 计算出符合要求的色相值
    float newHueValue = (hueValue - 127) * 1.0F / 127 * 180;
    // 创建一个颜色矩阵
    ColorMatrix hueColorMatrix = new ColorMatrix();
    // 控制让红色区在色轮上旋转的角度
    hueColorMatrix.setRotate(0, newHueValue);
    // 控制让绿红色区在色轮上旋转的角度
    hueColorMatrix.setRotate(1, newHueValue);
    // 控制让蓝色区在色轮上旋转的角度
    hueColorMatrix.setRotate(2, newHueValue);
    // 创建一个画笔并设置其颜色过滤器
    Paint paint = new Paint();
    paint.setColorFilter(new ColorMatrixColorFilter(hueColorMatrix));
    // 创建一个新的图片并创建画布
    Bitmap newBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);
    Canvas canvas = new Canvas(newBitmap);
    // 将原图使用给定的画笔画到画布上
    canvas.drawBitmap(bitmap, 0, 0, paint);
    return newBitmap;
}

Example 13 with ColorMatrix

use of android.graphics.ColorMatrix in project glitch-hq-android by tinyspeck.

the class BitmapUtil method GetGrayscale.

public static Bitmap GetGrayscale(ImageView iv, Bitmap bm, boolean big) {
    int width, height;
    height = bm.getHeight();
    width = bm.getWidth();
    Bitmap bmGrayscale = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Bitmap bmCheckMark = BitmapFactory.decodeResource(iv.getResources(), big ? R.drawable.checkmark : R.drawable.checkmark_small);
    Canvas c = new Canvas(bmGrayscale);
    // for bitmap
    Paint paint = new Paint();
    ColorMatrix cm = new ColorMatrix();
    cm.setSaturation(0);
    ColorMatrixColorFilter f = new ColorMatrixColorFilter(cm);
    paint.setColorFilter(f);
    // for check mark
    Paint colorPaint = new Paint();
    // for circle around bitmap
    Paint cPaint = new Paint();
    cPaint.setStyle(Paint.Style.STROKE);
    cPaint.setAntiAlias(true);
    cPaint.setAlpha(78);
    cPaint.setColor(0xffc0c0c0);
    Path clip = new Path();
    clip.addCircle(width / 2, height / 2, (float) (width / 2 + 1.0), Path.Direction.CW);
    c.clipPath(clip);
    c.drawARGB(78, 233, 240, 240);
    c.drawBitmap(bm, 0, 0, paint);
    c.drawCircle(width / 2, height / 2, width / 2, cPaint);
    if (big) {
        c.drawBitmap(bmCheckMark, 100, 65, colorPaint);
    } else {
        c.drawBitmap(bmCheckMark, 35, 30, colorPaint);
    }
    return bmGrayscale;
}

Example 14 with ColorMatrix

use of android.graphics.ColorMatrix in project ADWLauncher2 by boombuler.

the class Utilities method initStatics.

private static void initStatics(Context context) {
    final Resources resources = context.getResources();
    final DisplayMetrics metrics = resources.getDisplayMetrics();
    final float density = metrics.density;
    sIconWidth = sIconHeight = (int) resources.getDimension(android.R.dimen.app_icon_size);
    sIconTextureWidth = sIconTextureHeight = sIconWidth + 2;
    sBlurPaint.setMaskFilter(new BlurMaskFilter(5 * density, BlurMaskFilter.Blur.NORMAL));
    sGlowColorPressedPaint.setColor(0xffffc300);
    //TODO: sGlowColorPressedPaint.setMaskFilter(TableMaskFilter.CreateClipTable(0, 30));
    sGlowColorFocusedPaint.setColor(0xffff8e00);
    //TODO: sGlowColorFocusedPaint.setMaskFilter(TableMaskFilter.CreateClipTable(0, 30));
    ColorMatrix cm = new ColorMatrix();
    cm.setSaturation(0.2f);
    sDisabledPaint.setColorFilter(new ColorMatrixColorFilter(cm));
    sDisabledPaint.setAlpha(0x88);
}

Example 15 with ColorMatrix

use of android.graphics.ColorMatrix in project AndroidIndicators by MoshDev.

the class GreyscaleIconicTabsEffect method applyTabEffect.

@Override
public void applyTabEffect(ImageView imageView, float value, Status status) {
    ColorMatrix matrix = new ColorMatrix();
    matrix.setSaturation(value);
    ColorMatrixColorFilter filter = new ColorMatrixColorFilter(matrix);
    imageView.setColorFilter(filter);
}