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zgltest's Introduction

安卓平台基于opengl es的模糊效果

添加依赖

模块gradle

dependencies {
...
    implementation 'com.github.k4ttt:ZGlTest:1.0.0'
}

项目gradle

allprojects {
    repositories {
...
        maven { url "https://jitpack.io" }
    }
}

layout文件中使用

属性 说明
app:zgl_step 模糊步长
app:zgl_radius 模糊半径
app:zgl_src 模糊图片
   <com.example.zglsurface.ZGlSurfaceView
        android:id="@+id/zglsv"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:zgl_radius="20"
        app:zgl_src="@drawable/timg"
        app:zgl_step="5" />

java文件中使用

 zglsv.setSrcBitmap(BitmapFactory.decodeResource(
                getResources(),
                R.drawable.timg
        ));

效果示例

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zgltest's Issues

高斯权重矩阵的原理

请问作者在计算高斯模糊时使用到的一个权重矩阵是什么原理?

相关代码如下
u_char textData[] =
{
1, 1, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13。。。

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