Exemplo n.º 1
0
  /**
   * @param id desired filter to be applied to a bitmap
   * @param src bitmap source image to be filtered
   * @return src bitmap with filter applied
   */
  public static Bitmap applyFilter(int id, Bitmap src) {
    FastBitmap img = new FastBitmap(src);
    img.toRGB();
    // Interface for generic filter
    IBaseInPlace filter = null;

    switch (id) {
      case FILTER_NONE:
        break;
      case FILTER_SEPIA:
        filter = new Sepia();
        break;
      case FILTER_GRAYSCALE:
        filter = new Grayscale();
        break;
      case FILTER_EMBOSS:
        filter = new Emboss();
        break;
      case FILTER_INVERT:
        filter = new Invert();
        break;
      case FILTER_BLUR:
        filter = new Blur();
        break;
      case FILTER_SHARPEN:
        filter = new Sharpen();
        break;
      case FILTER_MORPH:
        filter = new Morph();
        break;
      case FILTER_BRIGHTNESS:
        filter = new BrightnessCorrection();
        break;
      case FILTER_GAUSSIAN:
        filter = new GaussianBlur();
        break;

      default:
        break;
    }
    if (filter != null) {
      filter.applyInPlace(img);
    }
    return img.toBitmap();
  }
  @Override
  public void applyInPlace(FastBitmap fastBitmap) {

    if (fastBitmap.isRGB()) {
      fastBitmap.toGrayscale();
    }

    if (invert) new Invert().applyInPlace(fastBitmap);

    int size = fastBitmap.getWidth() * fastBitmap.getHeight();

    int min = ImageStatistics.Minimum(fastBitmap);
    int max = ImageStatistics.Maximum(fastBitmap);

    fastBitmap.toRGB();
    for (int i = 0; i < size; i++) {
      int[] rgb = GrayscaleToHeatMap(fastBitmap.getRed(i), min, max);
      fastBitmap.setRGB(i, rgb);
    }
  }