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

Example 6 with ColorMatrix

use of android.graphics.ColorMatrix in project robolectric by robolectric.

the class ShadowBitmapTest method shouldReceiveDescriptionWhenDrawABitmapToCanvasWithAPaintEffect.

@Test
public void shouldReceiveDescriptionWhenDrawABitmapToCanvasWithAPaintEffect() throws Exception {
    Bitmap bitmap1 = create("Bitmap One", 100, 100);
    Bitmap bitmap2 = create("Bitmap Two", 100, 100);
    Canvas canvas = new Canvas(bitmap1);
    Paint paint = new Paint();
    paint.setColorFilter(new ColorMatrixColorFilter(new ColorMatrix()));
    canvas.drawBitmap(bitmap2, new Matrix(), paint);
    assertThat(shadowOf(bitmap1).getDescription()).isEqualTo("Bitmap One\n" + "Bitmap Two with ColorMatrixColorFilter<1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0>" + " transformed by Matrix[pre=[], set={}, post=[]]");
}

Example 7 with ColorMatrix

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

the class BitmapUtil method lumAndHueAndSaturation.

/**
     * 亮度、色相、饱和度处理
     *
     * @param bitmap          原图
     * @param lumValue        亮度值
     * @param hueValue        色相值
     * @param saturationValue 饱和度值
     * @return 亮度、色相、饱和度处理后的图片
     */
public static Bitmap lumAndHueAndSaturation(Bitmap bitmap, int lumValue, int hueValue, int saturationValue) {
    // 计算出符合要求的饱和度值
    float newSaturationValue = saturationValue * 1.0F / 127;
    // 计算出符合要求的亮度值
    float newlumValue = lumValue * 1.0F / 127;
    // 计算出符合要求的色相值
    float newHueValue = (hueValue - 127) * 1.0F / 127 * 180;
    // 创建一个颜色矩阵并设置其饱和度
    ColorMatrix colorMatrix = new ColorMatrix();
    // 设置饱和度值
    colorMatrix.setSaturation(newSaturationValue);
    // 设置亮度值
    colorMatrix.setScale(newlumValue, newlumValue, newlumValue, 1);
    // 控制让红色区在色轮上旋转的角度
    colorMatrix.setRotate(0, newHueValue);
    // 控制让绿红色区在色轮上旋转的角度
    colorMatrix.setRotate(1, newHueValue);
    // 控制让蓝色区在色轮上旋转的角度
    colorMatrix.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(colorMatrix));
    // 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 8 with ColorMatrix

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

the class BitmapUtil method saturation.

/**
     * 饱和度处理
     *
     * @param bitmap          原图
     * @param saturationValue 新的饱和度值
     * @return 改变了饱和度值之后的图片
     */
public static Bitmap saturation(Bitmap bitmap, int saturationValue) {
    // 计算出符合要求的饱和度值
    float newSaturationValue = saturationValue * 1.0F / 127;
    // 创建一个颜色矩阵
    ColorMatrix saturationColorMatrix = new ColorMatrix();
    // 设置饱和度值
    saturationColorMatrix.setSaturation(newSaturationValue);
    // 创建一个画笔并设置其颜色过滤器
    Paint paint = new Paint();
    paint.setColorFilter(new ColorMatrixColorFilter(saturationColorMatrix));
    // 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 9 with ColorMatrix

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

the class ImageProcessor method lumAndHueAndSaturation.

/**
     * 亮度、色相、饱和度处理
     * @param lumValue 亮度值
     * @param hueValue 色相值
     * @param saturationValue 饱和度值
     * @return 亮度、色相、饱和度处理后的图片
     */
public Bitmap lumAndHueAndSaturation(int lumValue, int hueValue, int saturationValue) {
    //计算出符合要求的饱和度值
    float newSaturationValue = saturationValue * 1.0F / 127;
    //计算出符合要求的亮度值
    float newlumValue = lumValue * 1.0F / 127;
    //计算出符合要求的色相值
    float newHueValue = (hueValue - 127) * 1.0F / 127 * 180;
    //创建一个颜色矩阵并设置其饱和度
    ColorMatrix colorMatrix = new ColorMatrix();
    //设置饱和度值
    colorMatrix.setSaturation(newSaturationValue);
    //设置亮度值
    colorMatrix.setScale(newlumValue, newlumValue, newlumValue, 1);
    // 控制让红色区在色轮上旋转的角度
    colorMatrix.setRotate(0, newHueValue);
    // 控制让绿红色区在色轮上旋转的角度
    colorMatrix.setRotate(1, newHueValue);
    // 控制让蓝色区在色轮上旋转的角度
    colorMatrix.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(colorMatrix));
    //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 10 with ColorMatrix

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

the class ImageProcessor method saturation.

/**
     * 饱和度处理
     * @param saturationValue 新的饱和度值
     * @return 改变了饱和度值之后的图片
     */
public Bitmap saturation(int saturationValue) {
    //计算出符合要求的饱和度值
    float newSaturationValue = saturationValue * 1.0F / 127;
    //创建一个颜色矩阵
    ColorMatrix saturationColorMatrix = new ColorMatrix();
    //设置饱和度值
    saturationColorMatrix.setSaturation(newSaturationValue);
    //创建一个画笔并设置其颜色过滤器
    Paint paint = new Paint();
    paint.setColorFilter(new ColorMatrixColorFilter(saturationColorMatrix));
    //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;
}