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Slightly Complex Colour Inverter

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Mewizkuit

Posted: Aug 1 2008, 10:20 PM

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I need a program or site that can invert all the colors in an image except White (255,255,255) and Black (0,0,0). Anybody know of anything than can do this?

I could do this manually but I'd rather find a program that will do it itself.

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Xgoff

Posted: Aug 1 2008, 10:43 PM

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how large is said image

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Mewizkuit

Posted: Aug 1 2008, 10:55 PM

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I keep adding on to it
so it will keep getting larger

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QUOTE

whenever i feel like clicking "reply"
i stop and think to myself, "why"
will it be a post to be remembered by?
or will i scare off a n00b and tell him to die?

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zzo38

Posted: Aug 2 2008, 12:41 AM

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ImageMagick should do a such thing:

CODE

imconvert INPUTFILE -negate -channel RGBA -transparent white -fill white -opaque black -fill black -opaque none OUTPUTFILE

Replace INPUTFILE and OUTPUTFILE with the filenames

This post has been edited by zzo38 on Aug 2 2008, 12:42 AM

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Pucifur	Posted: Aug 2 2008, 01:29 AM
Standard Member Group: Site Staff Posts: 6357 Member No.: 1035 Joined: 10-May 05 Status: (0d)	I know you would rather find a program, but if worse came to worse, there are several easy ways to do this. So if you would care to, read on. I'm sorry that I don't have the answer you wanted. - Invert the image with MS Paint - Chose WHT as your primary color, choose some color not used in your image as the secondary color (usually a default color like red) - Choose the eraser tool, and hold Ctrl and + down together until the eraser tool is huge. - Holding down a right click, run over the entire image to swap the white. - Set primary to BLK, secondary to WHT, and repeat. - Choose the color you replaced WHT with the first time as your primary and make WHT your secondary color. Run over the image again, and you're through. Alternatively, if you have something that swaps out colors (like Game Maker's image editor), you can use that instead of the eraser tool. Again, sorry for the lack of a decent answer, but if all else fails, this is a simple method (despite all the text). -------------------- - P - U - C - I - F - U - R - got one

DJ Elly

Posted: Aug 2 2008, 07:29 AM

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QUOTE (zzo38 @ Aug 2 2008, 12:41 AM)

ImageMagick should do a such thing:

CODE

imconvert INPUTFILE -negate -channel RGBA -transparent white -fill white -opaque black -fill black -opaque none OUTPUTFILE

Replace INPUTFILE and OUTPUTFILE with the filenames

yeah this is pretty much the easiest way.

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Hey

LGB	Posted: Aug 2 2008, 11:08 AM
Making a better living through garage kits Group: Members Posts: 789 Member No.: 4608 Joined: 22-October 07 Status: (0d)	Just change the color back to black and white.

Mewizkuit

Posted: Aug 2 2008, 12:39 PM

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QUOTE (LGB @ Aug 2 2008, 09:08 AM)

Just change the color back to black and white.

The reason that is annoying to do is that there are places in the picture where black and white are beside each other.

So when I change the black back into white then when I change the white into black the white parts will turn black again.

You see my dilemma?

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QUOTE

whenever i feel like clicking "reply"
i stop and think to myself, "why"
will it be a post to be remembered by?
or will i scare off a n00b and tell him to die?

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OniLink10

Posted: Aug 2 2008, 12:56 PM

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GIMP has a Built-In Color Invert and Value Invert. Works better than anything else suggested here. XD

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QUOTE (Xgoff @ Sep 10 2009 @ 06:11 PM)

did you try hello's engine

make sure to not ****ing change anything before using it!

Mewizkuit

Posted: Aug 2 2008, 01:00 PM

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QUOTE (OniLink10 @ Aug 2 2008, 10:56 AM)

GIMP has a Built-In Color Invert and Value Invert. Works better than anything else suggested here. XD

I'm downloading it now.
Lets see if it works...

Ok I have it but I can't seem to figure out how to choose what colors not to invert.

This post has been edited by Dr. Light on Aug 2 2008, 01:13 PM

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QUOTE

whenever i feel like clicking "reply"
i stop and think to myself, "why"
will it be a post to be remembered by?
or will i scare off a n00b and tell him to die?

Human Ref Fursona
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