سلام

در اینجا میخوام به شما آموزش بدم که چگونه یک عکس رو تار کنید

برای این کار ابتدا کد زیر رو به اکتیویتون اضافه کنید

Private Sub Blur (bmp As B4XBitmap) As B4XBitmap
   Dim n As Long = DateTime.Now
   Dim bc As BitmapCreator
   Dim ReduceScale As Int = 2
   bc.Initialize(bmp.Width / ReduceScale / bmp.Scale, bmp.Height / ReduceScale / bmp.Scale)
   bc.CopyPixelsFromBitmap(bmp)
   Dim count As Int = 3
   Dim clrs(3) As ARGBColor
   Dim temp As ARGBColor
   Dim m As Int
   For steps = 1 To count
       For y = 0 To bc.mHeight - 1
           For x = 0 To 2
               bc.GetARGB(x, y, clrs(x))
           Next
           SetAvg(bc, 1, y, clrs, temp)
           m = 0
           For x = 2 To bc.mWidth - 2
               bc.GetARGB(x + 1, y, clrs(m))
               m = (m + 1) Mod clrs.Length
               SetAvg(bc, x, y, clrs, temp)
           Next
       Next
       For x = 0 To bc.mWidth - 1
           For y = 0 To 2
               bc.GetARGB(x, y, clrs(y))
           Next
           SetAvg(bc, x, 1, clrs, temp)
           m = 0
           For y = 2 To bc.mHeight - 2
               bc.GetARGB(x, y + 1, clrs(m))
               m = (m + 1) Mod clrs.Length
               SetAvg(bc, x, y, clrs, temp)
           Next
       Next
   Next
   Log(DateTime.Now - n)
   Return bc.Bitmap
End Sub

Private Sub SetAvg(bc As BitmapCreator, x As Int, y As Int, clrs() As ARGBColor, temp As ARGBColor)
   temp.Initialize
   For Each c As ARGBColor In clrs
       temp.r = temp.r + c.r
       temp.g = temp.g + c.g
       temp.b = temp.b + c.b
   Next
   temp.a = 255
   temp.r = temp.r / clrs.Length
   temp.g = temp.g / clrs.Length
   temp.b = temp.b / clrs.Length
   bc.SetARGB(x, y, temp)
End Sub

هر کجا هم که خواستید استفاده کنید این کد رو بگذارید و به جای ایمج ویو ۱ اسم ایمیج ویوی خودتون رو بگذارید

Dim bmp As B4XBitmap = xui.LoadBitmapResize(File.DirAssets, "bas-van-brandwijk-588535-unsplash.jpg", ImageView1.Width, ImageView1.Height, True)
ImageView1.SetBitmap(Blur(bmp))