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Threshold-Alpha-and Math

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Kraellin
Kraellin

Posts: 12749
Filters: 99
ok, attached is a small routine i put together, but i have no clue why the output at the subtract component is entirely black and white. i was expecting at least some color here. doesnt this just subtract B from A? and isnt that all done by the color values of A and B? so, if you subtract one shade of red from another, shldnt it still come out as a little bit still reddish if the values of A were greater than the values of B? so, i have no clue and after banging my head against the monitor for a bit, i decided to try something even more painful by posting here smile;)
If wishes were horses... there'd be a whole lot of horse crap to clean up!

Craig
Posted: February 9, 2011 12:36 am   Details E-Mail
TosaInu
Posts: 35
Hello Kraellin,

How are you doing?
Ja mata

TosaInu
Posted: February 9, 2011 10:58 am   Details E-Mail
ThreeDee
Lost in Space

Posts: 1672
Filters: 112
Me see nothing attached...
Posted: February 10, 2011 2:53 pm   Details E-Mail
Gene S Morgan
Posts: 648
Filters: 81
Kraellin, I'm glad you asked this question. I have tried what I thought were simple add and subtracts (R-B, B-g,etc ....) which I have used in other filter programs such as ff and filter miester and got nothing but black or white. I figured I was just stupid and gave up.... Hope someone can help. I'd like to know as well.
Posted: February 10, 2011 9:23 pm   Details E-Mail
Kraellin
Kraellin

Posts: 12749
Filters: 99
lol. forgot the image. sorry bout that.

hi tosa! smile:) doing fine, thanks. how you doing? start a topic in the off topic forum here and we'll talk smile:)

If wishes were horses... there'd be a whole lot of horse crap to clean up!

Craig
Posted: February 13, 2011 8:40 pm   Details E-Mail

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