Partial Transparency
Judith Ryan
When I try to create a transparent gif from a bitmap of a butterfly, I
get an image that shows a butterfly with a transparent background and a
thin border of gray. I'm not sure where this border is coming from
since it doesn't show up on the bitmap. I've tried cropping (just to be
sure) with no effect.
I'm loading the transparent gif against a gif background having the same
dpi. I've created other transparent gifs successfully!
Thanks for your help.
Judith Ryan
Barb McMillen
In article <352509...@sedona.net>, Judith Ryan wrote:
> From: Judith Ryan <jud...@sedona.net>
> Newsgroups: corel.support.paint7plus
> Subject: Partial Transparency
> Date: Fri, 03 Apr 1998 09:07:01 -0700
>
> When I try to create a transparent gif from a bitmap of a butterfly, I
> get an image that shows a butterfly with a transparent background and a
> thin border of gray. I'm not sure where this border is coming from
> since it doesn't show up on the bitmap. I've tried cropping (just to be
> sure) with no effect.
Hi Judith,
Do you happen to be using a butterfly from the image sprayer tool or the
image sprayer library? That grey area is a drop shadow area. To get rid of
it you should open the file and the image is most likely an object. Copy
the object and paste it against a background. Go to Mask, Create Mask from
Object. Zoom in and color over or erase the grey area. Or adjust the mask
to eliminate the shadow.
I hope this helps.
Barb
=========
Barbara F. McMillen
http://www.bfmcmillen.com
Judith Ryan
Judith Ryan wrote:
Barb, I hope you get this reply to your reply. Somehow I seem to have
deleted it. And thanks for your promptness!
I don't think I described my problem well enough. What I'm getting
isn't a drop shadow around the butterfly, but what looks like a thin
grey border around all 4 sides of the transparent rectangle within which
the butterfly is contained. In other words, I have created a
transparent gif of the butterfly, with a border around the entire image.
I hope this makes sense and that you get my message.
Thanks a lot,
Judith
>
> When I try to create a transparent gif from a bitmap of a butterfly, I
> get an image that shows a butterfly with a transparent background and a
> thin border of gray. I'm not sure where this border is coming from
> since it doesn't show up on the bitmap. I've tried cropping (just to be
> sure) with no effect.
>
Barb McMillen
In article <352722...@sedona.net>, Judith Ryan wrote:
> From: Judith Ryan <jud...@sedona.net>
> Newsgroups: corel.support.paint7plus
> Date: Sat, 04 Apr 1998 23:21:51 -0700
>
>
> I don't think I described my problem well enough. What I'm getting
> isn't a drop shadow around the butterfly, but what looks like a thin
> grey border around all 4 sides of the transparent rectangle within which
> the butterfly is contained. In other words, I have created a
> transparent gif of the butterfly, with a border around the entire image.
Judy, This certainly sounds odd. Try this -
Create a background that is a flat color from a 216 web pal either IE or
NEtscape. Next copy the butterfly and paste it to that file.
Go to the Image | convert menu and convert this image to paletted and select
a web palette to convert to - IE or NS.
Export this as your gif using the eye dropper tool to select the background.
See if this helps. If it doesn't, can you attach the gif and let me look at
it?
Thanks,
Barb McMillen
Judith,
Language is everything is this case. I looked at the gif
and I'm not seeing the grey border you mention. But I am
seeing a border about the butterfly itself that is the
result of anti-aliasing.
If that is what we are discussing, using the zoom tool on
the image and blow it up thrice. You'll see the border
between the background and the image itself. That is the
area of anti-aliasing where the image is picking up part of
the background as a smoothing device.
Go to the object menu and select defringe and set that to
be about 2. Then resave as gif.
Does this help?
Judith Ryan
Barb,
Thanks for the tip about the defringe option, however that's not the
issue. It's the border around the rectangle, not the butterfly.
I forgot to mention that you can't see the border with PhotoPaint, I
least I haven't been able to. It only shows up when I load it with an
html file via Netscape; which is of course where I want to use it.
Did you try looking at the gif via a Netscape page? If not, I'd really
appreciate it if you could.
Thanks for your help.
Judith Ryan
Barb McMillen
Judith,
I have looked at this on a white background page in
Netscape and a black background page in Netscape. I have
also looked at it in IE4. I simply do not see a grey
border. All I see is a magenta anti-aliasing edge to the
butterfly.
Is it possible you have not set your image border to zero
in you page set up - img src or html editor - to zero.
Hence you are seeing some sort of default border for the
image? Try it, set the image border attribute to zero. See
if that helps.
George L.
Judith Ryan <jud...@sedona.net> wrote in article
<35296B...@sedona.net>...
> Barb,
>
> Thanks for the tip about the defringe option, however that's not the
> issue. It's the border around the rectangle, not the butterfly.
>
> I forgot to mention that you can't see the border with PhotoPaint, I
> least I haven't been able to. It only shows up when I load it with an
> html file via Netscape; which is of course where I want to use it.
>
> Did you try looking at the gif via a Netscape page? If not, I'd really
> appreciate it if you could.
>
> Thanks for your help.
>
> Judith Ryan
>
It sounds to me like you are talking about the border that
browsers place around a graphic file by default. If that's
the case, you need to set your border attribute to "0" or "NO"
in your HTML document.This will eliminate the border.
George L.
Judith Ryan
Barb, Thank you so much!!!!!!!!! I AM using the image as an anchor and
didn't realize that I needed to use the BORDER element! That fixed the
problem. I never tried just loading the image normally.
Thank you so much for your patience and expert advise. I learned several
things from you.
You have my permission to print this message and use it as a reference
with your management. Tell them you deserve a gold star!
My complements to COREL for providing such a great service for those of
us just starting out.
Love and Light,
Judith Ryan
Barb McMillen
In article <352A75...@sedona.net>, Judith Ryan wrote:
> Thank you so much!!!!!!!!! I AM using the image as an anchor and
> didn't realize that I needed to use the BORDER element!
>
Good news, Judith. :-)
> a reference
> with your management.
>
I appreciate the permission. Wanted to mention that those of us
wearing the C_Tech tails are volunteers here. But we're sure the
web management notices the thanks. We sure do.
Warmly,