Create watermark image

[Lam]

Hi all,

I try to create an watermark image from the the origin image and an logo.
The image are all in the 'JPEG' format.

Can you help me please!!!
Thanks

[Sean McBride]

In article <B9365D32.3FF%lam...@Phreaker.net>,
Lam <lam...@Phreaker.net> wrote:

I think you're going to need to give more info. I for one have no idea
what you mean (please don't take that the wrong way). What are you
trying to do exactly, and what is the problem?

[Raoul Ortega]

In article <cwatson-113893...@news21.bellnet.ca>, Sean
McBride <cwa...@cam.org> wrote:

You will need to read in the image, convert it to a GWorld via something
like DecompressImage(), draw on it to your little heart's content with
what ever you want, then convert it back to a JPEG with CompressImage(),
and finally write it back out to disk (either to a new file, or
overwrite the existing).

An experienced Mac developer should be able to do this in a day or so,
as it's all pretty standard stuff. Years ago I worked on a Photoshop
plugin that did watermarking, so the I/O and conversion was handled for
us.

[David Phillip Oster]

In article <r.ortega-2EEB36...@news.speakeasy.net>,
Raoul Ortega <r.or...@mouse-potato.com> wrote:

> You will need to read in the image, convert it to a GWorld via something
> like DecompressImage(), draw on it to your little heart's content with
> what ever you want, then convert it back to a JPEG with CompressImage(),
> and finally write it back out to disk (either to a new file, or
> overwrite the existing).

To actually do the watermark, you can do a CopyBits() from the logo
GWorld to the JPEG's GWorld, using the blend, addPin, or subPin transfer
modes, with the amount of ghosting of the logo GWorld given by the
OpColor() RGBColor.