Sunday 21 April 2013

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();
            ColorMatrix colorMatrix = new ColorMatrix();
            ColorMatrixColorFilter filter = new ColorMatrixColorFilter(colorMatrix);
            canvas.drawBitmap(bitmap, 0, 0, paint);
            return grayBitmap;

By: NovaRadix Technology.

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