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blurdemo's Introduction

各类模糊算法效果展示

为了测试这里用到两张图片 272x272

3500x2625

第一张图片(272x272)

Fast Blur

Fast Blur(JNI实现)

之前用真机测试两个Fast Blur (在小图上)的时间差不多,这里可能是因为模拟器是x86的原因

Box Blur

只能设置奇数的radius

Gaussia Fast Blur

Stack Blur

RenderScript Blur

主流的 目前速度也是最快的,不过radius只能设置0-25之间,时间是0-2ms浮动

RenderScript Box 3x3

radius 并不是模糊半径 而是进行模糊的次数,所以会更花时间

RenderScript Box 5x5

radius 代表次数

RenderScript Box Gaussia 5x5

和上面方法一样 只是设置的具体转换数值不同

第二张图片(3500x2625)

缩放及模糊半径与上面一致

Fast Blur Box Blur
Gaussia Fast Blur Stack Blur
RenderScript Blur RenderScript Box 3x3
RenderScript Box 5x5 RenderScript Box Gaussia 5x5

这里开启Bitmap Filter 再看下效果

NO FILTER FILTER
Fast Blur
RenderScript Blur

表格统计

这里第一个图(272x272)用A表示,第二个图(3500x2625)用B表示()表示模糊半径及缩放比例,每个测试三组测试数据已(时间,内存)展示,crash都是因为OOM了

算法 (20,0.125) (10,0.125) (25,0.5) (25,1) (50,1)
FB A(2,720)
B(19,3804)
A(1,388)
B(17,3484)
A(22,4592)
B(380,37284)
A(102,13048)
Bcrash
A(115,10420)
Bcrash
FB(C) A(1,96)
B(12,1120)
A(1,88)
B(9,1120)
A(9,1304)
B crash
Acrash
Bcrash
Acrash
Bcrash
BB A(2,132)
B(26,1680)
A(2,132)
B(27,1684)
A(30,1956)
B(459,18016)
A(133,7812)
Bcrash
A(138,7820)
Bcrash
GFB A(1,92)
B(16,1124)
A(1,96)
B(15,1128)
B(263,9008??18016) A(87,5208)
Bcrash
A(88,5208)
Bcrash
STB A(2,624)
B(18,3244)
A(2,344)
B(17,2924)
A(21,3340)
B(394,??)
A(95,13700)
Bcrash
A(116,15628)
Bcrash
RSB A(1,52)
B(7,564)
A(1,48)
B(5,568)
A(6,652)
B(78,9008)
A(21,2604)
B(275,36116)
不支持
RSB3x3 A(3,48)
B(12,564)
A(1,48)
B(5,560)
A(15,652)
B(100,9008)
A(36,2604)
B(409,36120)
A(62,2604)
B(713,35888)
RSB5x5 A(4,60)
B(17,560)
A(2,60)
B(9,560)
A(22,652)
B(191,9008)
A(59,2604)
B(661,35888)
A(122,2604)
B(1249,35888)
RSBG5x5 A(4,44)
B(17,560)
A(2,56)
B(10,568)
A(22,652)
B(187,9008)
A(59,2604)
B(677,35892)
A(120,2604)
B(1268,35892)

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