ciomp

I have a RGB image which has a format 720*576*3,I want to change it to 256 gray image

here is my programme ,but it not the same as I save by Windows .

where is the question ?

Download File:post-4693-1145189270.vi

I have a RGB image which has a format 720*576*3,I want to change it to 256 gray image

here is my programme ,but it not the same as I save by Windows .

where is the question ?

i have do some work like this ,please give me some advise

Download File:post-4693-1144478868.vi

1 2 3 4 5

6 7 8 9 10

11 12 13 14 15

16 17 18 19 20

i have a 5*4array like that .what could i do to change it to the following:

1 1 2 2 3 3 4 4 5 5

1 1 2 2 3 3 4 4 5 5

6 6 7 7 8 8 9 9 10 10

6 6 7 7 8 8 9 9 10 10

11 11 12 12 13 13 14 14 15 15

11 11 12 12 13 13 14 14 15 15

16 16 17 17 18 18 19 19 20 20

16 16 17 17 18 18 19 19 20 20