Screw and pen frame 2.

(scr4)

The original image

(scr3and1)

Result of ANDing graylevels of scr4 and scr3.

(scr3and2)

Result of ANDing negatives of scr4 and scr3.

(scr4thr1)

Result of thresholding scr4

(scr3and3)

Result of ANDing negatives of scr4thr1 and scr3thr1.

(scr3or1)

Result of ORing negatives of scr4thr1 and scr3thr1.

(scr3or2)

Result of ORing scr4thr1 and scr3thr1.

(scr3xor1)

Result of XORing scr4thr1 and scr3thr1.

©2003 R. Fisher, S. Perkins, A. Walker and E. Wolfart.