jrvansuita / gaussianblur

🎩 An easy and fast library to apply gaussian blur filter on any images.

Gaussian Blur

This is an Android project. Easy and simple library to apply gaussian blur filter on images. The library lets you apply a gaussian blur filter on any images very fast because the image will be scaled down before apply the filter. Doing it asynchronous or not.

Sample app

Please check the sample app and feel free to help with a pull request. It's located here.

Setup

Step #1. Add the JitPack repository to your build file:

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

Step #2. Add the dependency (See latest release).

dependencies {
    compile 'com.github.jrvansuita:GaussianBlur:+'
}

Step #3. Add the below lines on app module build.gradle file.

defaultConfig {
    ...
    renderscriptTargetApi 19
    renderscriptSupportModeEnabled true
}

Implementation

//Synchronous blur
Bitmap blurredBitmap = GaussianBlur.with(context).render(R.mipmap.your_image);
imageView.setImageBitmap(blurredBitmap);
   
//Asynchronous blur
GaussianBlur.with(context).put(R.mipmap.your_image, imageView);

//Asynchronous with scaleDown and changing radius
GaussianBlur.with(context).size(300).radius(10).put(R.mipmap.your_image, imageView);

gaussianblur's Issues

Please add V8 ProGuard Rules for Release

##---------------Start: GaussianBlur ----------

-dontwarn android.support.v8.renderscript.**
-keep public class android.support.v8.renderscript.** { *; }

##---------------End: GaussianBlur ----------

support SurfaceView ?

support SurfaceView ?

No Open Source Licences

How to add colorFilter?

Api does not support color filter?

Support for Gradle 8

The lib didn't work after upgrading to Gradle 8 due to the discontinued support of RenderScript.

Are there plans to update the library?
https://developer.android.com/guide/topics/renderscript/compute

Caused by: android.support.v8.renderscript.RSIllegalArgumentException: Unsuported element type.

Hello,when i use GaussianBlur to deal with a picture ,it throws this Exception,My picture is got from web async through Glide,and below is my code:

public class MainActivity extends AppCompatActivity {
    ImageView ivStone;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ivStone = (ImageView) findViewById(R.id.stone);

        Glide.with(this).load("http://pic6.huitu.com/res/20130116/84481_20130116142820494200_1.jpg").asBitmap().into(new SimpleTarget<Bitmap>() {
            @Override
            public void onResourceReady(Bitmap resource, GlideAnimation<? super Bitmap> glideAnimation) {
                Log.e("XXXX","onResourceReady"+resource.toString());
                setHeaderImage(resource);
            }

            @Override
            public void onLoadFailed(Exception e, Drawable errorDrawable) {
                Log.e("XXXX","onLoadFailed"+e.toString());
                setHeaderImage(BitmapFactory.decodeResource(getResources(), R.mipmap.dream_plan_detail_default_bg));
            }

            @Override
            public void onLoadStarted(Drawable placeholder) {
                Log.e("XXXX","onLoadStarted"+placeholder.toString());
                setHeaderImage(BitmapFactory.decodeResource(getResources(), R.mipmap.dream_plan_detail_default_bg));
            }
        });
    }
    private void setHeaderImage(Bitmap resource) {
        Log.e("XXXX","resource"+resource.toString());
        GaussianBlur.with(this).maxSixe(400).radius(5).put(resource, ivStone);
    }
}

getwidth() null pointer exception

Getting image from API and set as background ...

Caused by java.lang.NullPointerException
Attempt to invoke virtual method 'int android.graphics.Bitmap.getWidth()' on a null object reference
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com.vansuita.gaussianblur.GaussianBlur.scaleDown (GaussianBlur.java:101)