B4J Library [B4X] B4J/B4A: Blur Image Effect

Hello everyone,
Nothing new hear, and yes this can be achieved using Bitmap Creator. I wrapped this last year whilst learning Java for a personal project. I've just cleaned it up a bit for the B4X community.

B4J library tab:

B4J Images:

B4A library tab:

B4A Images:

Private Sub Button1_Click
    Dim Img As B4XBitmap = ImageView1.GetBitmap ' CAN ALSO USE ImageView1.Snapshot
    If Img.IsInitialized = False Then Return

    'Loop for slow transition blur effect
    For i = 0 To 99
        BI.BlurAsync(Img, i)
        Sleep(20) '20 milliseconds per transition for slow blur
    Next
End Sub

Sub BI_BlurDone(Blurred As Object)
    Dim Bmp As B4XBitmap = Blurred
    If Bmp.IsInitialized = False Then Return
    ImageView1.SetBitmap(Bmp)
End Sub

SS_BlurImage

Author: Peter Simpson
Version: 1.0

• • Functions:
    • Cancel
      Cancel any pending blur task.
      This attempts to cancel the running future if present.
    • Release
      Release engine resources and shutdown the dispatcher.
      After calling release the engine cannot be reused.
• • Functions:
    • BlurPixels (pix As Int(), w As Int, h As Int, radius As Int) As Int()
• BlurImage
  • Events:
    • BlurDone
  • Functions:
    • BlurAsync (Source As Object, Radius As Int)
      Start an asynchronous blur operation.
      Source is the platform image object or wrapper. Pass a Bitmap, Image, B4XBitmap.
      Radius is the blur radius.
    • Cancel
      Cancel any pending asynchronous blur operation.
      Cancellation is cooperative; if the blur is already running it will attempt to stop.
    • Initialize (EventName As String)
      Initialize the BlurImage engine.
    • IsInitialized As Boolean
    • Release
      Release resources used by the engine.
      This will cancel pending tasks and shut down the internal dispatcher.

Enjoy...

 

[TILogistic]

You use the stack blur technique, very similar to Guasian, but very expensive in processing.

 

[Peter Simpson]

You use the stack blur technique, very similar to Guasian, but very expensive in processing.

Developers always have to moan about something, even after I clearly wrote "and yes this can be achieved using Bitmap Creator".

And no, it's not that expensive in processing power.

One more added to my ignore list