Gray Scale Photo Effect for android

Please use below class and pass the bitmap to this function and get return bitmap with gray scale effect.

public class GrayFilter {

     

      //   satutarion --- 1.0 , 0.5 and 0

     

      public static Bitmap changeToGray(Bitmap bitmap) {

            return changeToGray(bitmap, 0);

      }

     

      public static Bitmap changeToGray(Bitmap bitmap,float sat) {

            int width, height;

            width = bitmap.getWidth();

            height = bitmap.getHeight();

                 

            Bitmap grayBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);

            Canvas canvas = new Canvas(grayBitmap);

            Paint paint = new Paint();

            paint.setAntiAlias(true);

                 

            ColorMatrix colorMatrix = new ColorMatrix();

            colorMatrix.setSaturation(sat);

                 

            ColorMatrixColorFilter filter = new ColorMatrixColorFilter(colorMatrix);

                 

            paint.setColorFilter(filter);

            canvas.drawBitmap(bitmap, 0, 0, paint);

                 

            return grayBitmap;

      }

}

Amazing Real Life Love Story Android Application

By: NovaRadix Technology.