I have an image in a sheet1 in a merged cell range S1:V8.
I don\'t know the name of this picture because we paste different pictures in the area each time we create a ne
It's not clear whether the picture you are referring to is "in the cell" or floating above the cells. As far as I know, the only way to have a picture "in a cell" is to have it within the comment of the cell (actually, intended as a background picture for comment text). In either case, the key to manipulating it using VBA would be to get a reference for it. The following code will identify the presence of either of the above cases if you first select the region of cells, as shown in the animated gif. Unfortunately, as far as I know, all you can do is add background pictures to comments via VBA.
Option Explicit
Sub testForPicturesOrComments()
Dim p As Picture, r As Range, hasComment As Boolean
For Each p In ActiveSheet.Pictures
MsgBox ("There's a picture called " & p.Name)
Next p
For Each r In Selection
On Error Resume Next
hasComment = r.Comment.Parent.Address = r.Address
'Reset Run Time Errors
On Error GoTo 0
If hasComment Then
MsgBox ("There's a comment in " & r.Address _
& " with a shape.ID = " & r.Comment.Shape.ID)
hasComment = False
End If
Next r
End Sub