Re: Reverse video

[Ben FrantzDale]

- Original Message -
From: Leonard R. Wayne <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, September 19, 2000 10:45 PM
Subject: Reverse video


> Hello.
>
> Is there any quick way in GIMP to swap
> black and white colors in an imported
> color image?
>
> I have a .tif image (generated by another
> program) which I want to send to my
> printer.  The .tif image consists of a
> color graph superimposed on a black
> background.  The black background covers
> most of the image.  The graph is labeled
> by white text which appears superimposed
> on the black background.  The reason I
> want to swap black and white is that
> currently when I send this plot to my
> printer, a ton of ink gets used up in
> printing the black background.  (I am
> going to be generating a bunch of these
> plots, so it would be nice to have a
> way to swap black and white.)
>

Here's how I'd do it:
Edit->select by color
Select the black color. Copy it to the clipboard.
Select the white color. Fill it in black or invert the color (same effect).
Paste the black from the clipboard, invert the color (image->colors->invert
I think). Finally, line things up if the paste didn't go where it's supposed
to.

--Ben

Reverse video

[Leonard R. Wayne]

Hello.

Is there any quick way in GIMP to swap
black and white colors in an imported 
color image?  

I have a .tif image (generated by another
program) which I want to send to my
printer.  The .tif image consists of a 
color graph superimposed on a black
background.  The black background covers
most of the image.  The graph is labeled
by white text which appears superimposed
on the black background.  The reason I 
want to swap black and white is that 
currently when I send this plot to my 
printer, a ton of ink gets used up in
printing the black background.  (I am
going to be generating a bunch of these
plots, so it would be nice to have a
way to swap black and white.)

In other words, what I want to do is 
pretty similar to the "Enable Reverse 
Video" feature in xterms, except here I
want to reverse-video an image instead 
of an xterm.

I bought the GIMP manual and spent a
while looking through it, but I cannot
figure out a way to solve this problem
easily.

I've checked the manual for the program
that generated the .tif file (metropro)
to see whether there is any way to 
reverse black and white when generating
the file in the first place, but no such
luck.

Thanks in advance.

- Len