Rob Cozens wrote:
Hi David,
question about how to script changing the image contrast - you know
with a slider? As far as I can figure there are three ways to go:
How about:
(4) With image "My Image" over a white background
Slider with start value of zero, end value 26, opens with current
value 13.
on mouseStillDown
set the blendLevel of image "My Image" to the thumbPosition of me
end mouseStillDown
on mouseUp
set the blendLevel of image "My Image" to the thumbPosition of me
end MouseUp
In my application the actual image changes, and is stored in the
card's expandedImage property; so my slider does:
on mouseStillDown
get word 2 to -1 of the expandedImage of this card
set the blendLevel of image it to the thumbPosition of me
end mouseStillDown
Great - had a dream this might be possible last night - you know you are
in trouble when you start to dream of such things :)
Guess you could use a black background to darken the image - is there
any difference between this effect and adjusting the velocity of the pixels?
Also guess there is no such trick with "contrast"?
Does the convolve dll allow you to adjust contrast and brightness - what
would that matrix be - lets have a quick search....
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