Scott Bicknell on wrote...
| On Wednesday, October 18, 2006 12:07 pm, Hugemann wrote:
|
| > Hi,
| >
| > I'm brand new on this list (but not quite so new to
| > ImageMagick).
| >
| > I would like to watermark a bulk of images with a logo placed
| > at their right bottom. I have this logo as a vector graphic.
| >
| > The problem is that the JPEGs I want to watermark are of
| > various size, thus I would like to scale my vector graphic
| > according to the height of the target image, scaling it for
| > instance to 20% of the target image's height.
| >
| > Any ideas how this could be done?
| >
| > I don't need to do it with a single command, I could possibly
| > use a batch language. (Preferably VBS as I am working on a
| > Windows machine.)
|
| Assuming you are using the command-line ImageMagick utilities
| with whatever scripting language you want, you would first need
| to know the size of the target image, and probably what side of
| the image is longest, the height or the width. Capture the
| output of the identify command in a variable.
|
| height = `identify -format '%h' target.jpg`
| width = `identify -format '%w' target.jpg`
|
| Then use whichever is greater (or smaller, depending on which
| side you want to use) to scale the coresponding side of your
| watermark image.
|
With the latest Im you can even have it do some mathematics for you...
size = `convert target.jpg -format '%[fx: w*0.2 ]x%[fx: h*0.2]' info:`
convert watermark.png -resize $size target.jpg +swap \
...do watermarking...
Remember -resize defines a box into which the image is resized to
completely fit into.
As for the watermarking itself see IM Examples
Watermarking with Images
http://www.cit.gu.edu.au/~anthony/graphics/imagick6/annotating/#wmark_image
Anthony Thyssen ( System Programmer ) <[EMAIL PROTECTED]>
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