ColorMatrix 矩陣效果,即美圖秀秀圖檔濾鏡效果的思路

原圖

灰階效果

0.33F ,0.59F ,0.11F ,0F ,0F,

0.33F ,0.59F ,0.11F ,0F, 0F,

0.33F ,0.59F ,0.11F 0F, 0F,

0F, 0F, 0F, 1F, 0F

圖像翻轉

-1F, 0F, 0F, 1F,1F,

0F ,-1F, 0F ,1F, 1F,

0F , 0F, -1 ,1F, 1F,

0F , 0F, 0F ,1F, 0F

懷舊效果

0.394F ,0.769F ,0.189F ,0F,0F,

0.349F ,0.6856F ,0.168F ,0F, 0F,

0.272F ,0.534F ,0.131F 0F, 0F,

0F, 0F, 0F, 1F, 0F

去色效果

1.5F, 1.5F, 1.5F, 0F, -1F,

1.5F, 1.5F, 1.5F, 0F, -1F,

1.5F, 1.5F, 1.5F, 0F, -1F,

1.5F, 1.5F, 1.5F, 1F, 0F

高飽和度

1.438F, -0.122F, -0.016F, 0F, -0.03F,

-0.062F, 1.378F,-0.016F, 0F,0.05F,

-0.062F, -0.122F, 1.483F,0F,-0.02F,

0F, 0F, 0F, 1F, 0F

代碼段

Bitmap bmp = Bitmap.createBitmap(bm.getWidth(),bm.getHeight(),Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(bmp); Paint paint = new Paint(); ColorMatrix hueMatrix = new ColorMatrix(); hueMatrix.set(f);//f即float數組 paint.setColorFilter(new ColorMatrixColorFilter(hueMatrix)); canvas.drawBitmap(bm,0,0,paint); img.setImageBitmap(bmp);

更多效果請自行谷歌。