Inefficient code

[Richmond Mathewson]

I have uploaded my 'take' on this problem:
http://mathewson.110mb.com/FILEZ/IMAGE COMPARE.rev.zip


On Fri, Jun 26, 2009 at 10:50 PM, Bert Shuler <bertshuler at yahoo.com> wrote:

> I have written this code a few different ways. Each seems to be equally
> inefficient. I am attempting to compare to images, pixel by pixel, and
> record the differences.
>
> ON mouseUp pMouseBtnNo
>    put 0 into c
>    set the startvalue of scrollbar Progress to 0
>    set the endvalue of scrollbar Progress to the length of imagedata of
> image "Alpha"
>    put the imagedata of image "Alpha" into idataalpha
>    put the imagedata of image "Beta" into idatabeta
>    REPEAT FOR each char myChar in idataalpha
>        set the thumbposition of scrollbar Progress to c
>        IF myChar is not  char (c) of idatabeta THEN
>            put c && char (c) of idatabeta & return after hAll
>        END IF
>        put c+1 into c
>    END repeat
>    put hAll into field "diff"
> END mouseUp
>
> It takes many minutes to process a 200x200 image. I want this code to
> eventually compare full screen-captures, so if there is any way to speed it
> up, I am open for advice.
>
> Thanks
>
> Bert
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