Before Snow Falling Effect














After Snow Falling Effect











Create new Android Project


Project Name: PlayingwithBitmaps

Build Target: Android 2.3.3   //or greater than that

Application Name: PlayingwithBitmaps

Package Name: com.hamad.playingwithbitmaps

Create Activity: Main


Min SDK: 10 // or greater than that





create main layout:




One image view to display the

Before Dark Effect








After Dark Effect











Create new Android Project



Project Name: PlayingwithBitmaps

Build Target: Android 2.3.3   //or greater than that

Application Name: PlayingwithBitmaps

Package Name: com.hamad.playingwithbitmaps

Create Activity: Main


Min SDK: 10 // or greater than that



create main layout:



One image view to display the image.

Before Tint Color Effect










After Tint Color Effect



Tint Degree=30




Tint Degree=30













Tint Degree=50



Tint Degree=80









Create new Android Project


Project Name: PlayingwithBitmaps

Build Target: Android 2.3.3   //or greater than that

Application Name: PlayingwithBitmaps

Package Name: com.hamad.playingwithbitmaps

Create Activity: Main


Min SDK: 10 // or

It’s not easy to explain about Convolution, so I just pick up several article links which would be helpful for you to understand convolution better.and you can use it for references.



GIMP Documentation on Convolution Matrix <— really detailed on explanation.

VcsKicks.Com – Convolution Application on Box Blur effect

Convolution Study by Ahn Song Ho

CodeProject – Image Processing for