Errata in the course notes.

(Updated April 14)

Chapter 4

Definition of erosion, substitute (-b) for b in the subscript of Tau.

Figure 4.6 third part (result of erosion)
The top row should be 0 0 0 1 1

Hit-and-Miss transform definition should read

                                             c     
Hit-and-Miss     C  = (C (-) A ) intersect (C (-) B )
            A,B

where X (-) Y means X eroded by Y and

 c
X  means the complement of X.

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In the definitions for Grayscale dilation and erosion,
the symbols have been accidentally interchanged.

(-) should be for erosion

(+) should be for dilation.