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| Author |
Using Images without embedding
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| I want to know how can we use images (BMP,JPG) in a PS page description
file so that we dont have to embed the image data i.e can we use images by
reference in PS ?
Is there any tool which does allow this?
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| Ian Wilson 2005-03-10, 8:57 am |
| Needo wrote:
> I want to know how can we use images (BMP,JPG) in a PS page description
> file so that we dont have to embed the image data i.e can we use images by
> reference in PS ?
>
> Is there any tool which does allow this?
>
>
If it is line-drawing type artwork, I'd use inkscape to trace outlines
(auto or manually).
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| Aandi Inston 2005-03-10, 8:57 am |
| "Needo" <mnmateen@yahoo.com> wrote:
>I want to know how can we use images (BMP,JPG) in a PS page description
>file so that we dont have to embed the image data i.e can we use images by
>reference in PS ?
PostScript has a "file" operator which can be used to read external
files. In very carefully controlled workflows you can read external
files, but of course they must contain PostScript - probably in this
case the image converted to EPS. JPEG files could also be read
directly using the DCTDecode filter.
However, this is not an option for most people as either
(a) their workflows vary so files will not always be in the same
place; or
(b) they are using PostScript printers which have no hard disk, and
which cannot reach back up a printer cable to get files from your
computer.
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Aandi Inston quite@dial.pipex.com http://www.quite.com
Please support usenet! Post replies and follow-ups, don't e-mail them.
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| Is there a way by which we can read BMP,JPG image data into Postscipt
program using postscript operators so that a dictionary contains all the
information about the image and then use image operator etc to display the
image.?
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| Aandi Inston 2005-03-11, 8:57 am |
| "Needo" <mnmateen@yahoo.com> wrote:
>Is there a way by which we can read BMP,JPG image data into Postscipt
>program using postscript operators so that a dictionary contains all the
>information about the image and then use image operator etc to display the
>image.?
Sure, PostScript is a general purpose programming language with file
access. If you are ompletely familiar with the internal file format of
an image file, and an intermediate or better PostScript programmer,
you can read the data and use it. This is a substantial development,
and seems pointless when you can just convert the images to EPS.
Even then, will you absolutely, definitely, have filesystem access
when your files are printed?
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Aandi Inston quite@dial.pipex.com http://www.quite.com
Please support usenet! Post replies and follow-ups, don't e-mail them.
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| Ian Wilson 2005-03-12, 8:58 am |
| Needo wrote:
> I want to know how can we use images (BMP,JPG) in a PS page description
> file so that we dont have to embed the image data i.e can we use images by
> reference in PS ?
>
> Is there any tool which does allow this?
>
>
If it is line-drawing type artwork, I'd use inkscape to trace outlines
(auto or manually).
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