🚀 go-pugleaf

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hello people,

I'm not too sure if this is the right place to ask this but if it's
not I'm sure s/one will set me straight.

This is probably a simple question for all you graphics/imaging gurus
out there so I'm expecting a flood of responses:

OK:
If I have a 35mm negative and I grab that slide onto my PC with some
sort of frame grabber then what's involved in turning that image
into a positive ?

Is it a simple matter of subtracting every pixel from its max value ?

e.g. say I have a 24 plane image (i.e. no colour map) to get a positive
of a pixel with a value of say 0x123456 is it as simple as doing:

0xffffff - 0x123456 = positive value ?

Any comments please ...Thanks...Brian
hello people,

I'm not too sure if this is the right place to ask this but if it's
not I'm sure s/one will set me straight.

This is probably a simple question for all you graphics/imaging gurus
out there so I'm expecting a flood of responses:

OK:
If I have a 35mm negative and I grab that slide onto my PC with some
sort of frame grabber then what's involved in turning that image
into a positive ?

Is it a simple matter of subtracting every pixel from its max value ?

e.g. say I have a 24 plane image (i.e. no colour map) to get a positive
of a pixel with a value of say 0x123456 is it as simple as doing:

0xffffff - 0x123456 = positive value ?

Any comments please ...Thanks...Brian
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