Android Open Source - android-imgpro-lib Brightness

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Back to project page android-imgpro-lib.

License

The source code is released under:

MIT License

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Java Source Code

package net.akhyar.android.imgpro.actions;
/* w  w  w .jav a2 s .c  om*/
import net.akhyar.android.imgpro.Action;

public class Brightness extends Action {

  private int offset;

  public Brightness(int offset) {
    this.offset = offset;
  }

  @Override
  protected void adjustPixels(int[] pixels) {
    int r, g, b;

    int[] cache = new int[256];
    for (int i = 0; i < cache.length; i++) {
      cache[i] = clamp(i + offset);
    }

    for (int i = 0; i < pixels.length; i++) {
      r = cache[0xff & (pixels[i] >> 16)];
      g = cache[0xff & (pixels[i] >> 8)];
      b = cache[0xff & (pixels[i])];

      pixels[i] = 0xff000000 + (r << 16) + (g << 8) + b;
    }
  }

  public float getOffset() {
    return offset;
  }

  public void setOffset(int offset) {
    this.offset = offset;
  }

}

Java Source Code List