General Support: New Plugin (Resizing and Watermarking)

UPDATE: forum entry added here: http://www.n-line.co.uk/forum/viewforum.php?f=11
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Hi, let me start by saying that I love this app. It finally convinced me to switch from my custom coded gallery to a distributed product (I've never been able to find the right balance between features and bloat in these products)

One thing was missing, however, the ability to resize images automatically and watermark them without furthur interaction. So... I wrote a plug-in to do it for me...

Basically it took me bloody ages, but it's been coded in such a way that if there is a demand for it then I could potentially distribute it. I'd still need to package it up and write instructions but I could have that done in a week or so if people want it.

I have put a couple of screenshots up here: http://www.n-line.co.uk/gallery/other_photography/screenshots

and you can look at my site and the resized / marked pictures while you're there :)

Please excuse the current content, as I say I'm migrating things across and still getting happy with Plogger's settings.

That is very cool and i would be very interested, i'm writing a site for a artist to put their portfolio up, and the watermarking is really the one thing that plogger lacks for my needs, although i'd be rather after a watermark straight through it and not just in the corner.

But very cool!

Hi all, thanks for the feedback... looks like I might have done something useful for once ^__^

To answer the Qs / comments:
JACK - The script can tell the difference between landscape and portrait pictures and will then treat width and height, respectively, as the primary dimension. Actually there is no stretch going on. I don't like things messing with the dimensions of my images :) so in http://www.n-line.co.uk/gallery/malaysia/travel__2003_/salang_bay__palau_tioman.jpg the photo is a non-standard size because it�??s scanned rather than a digipic. Thus, when resized the width is the specified 800 but the height is only 555px, again, it should actually be quite easy to have an �??maintain proportions�?� option to turn this on/off.

Another good example would be this image: http://www.n-line.co.uk/gallery/china/beijing/forbidden_city_panarama.jpg which is actually a very large panorama made from maybe 4 images but resized down to a width of 800px (in my opinion this is the better than treating height as primary) So, a square image would be kept square :)

Also the script does a few basic checks (like not ENLARGING images which are less than the �??shrink�?� sizes!)

[edit]: oh yes, there is still an issue in regard to font size. Because the font size is fixed (defaults to 25 but I use 15) the text is not an identical size in every image. I have been considering adding a proportionality kind of calculation (eg size 15 would be equivalent to size 15 at 800x600 and then do the math to srhink/enlarge it as necessary) but it's not there yet because I haven't needed it, again, give it time...

PUK - The reason the code only allows watermarking in the bottom right is because that is where I've traditionally had my own marks. In theory (and subject to some thought in regard to the mathematics of php bouncing boxes) I could include an option for placement, and also for colours, although this will need a bit of research beforehand.

On that note, I have a question. Is there any standard way to write plug-in for plogger (eg phpBB�??s standard) or is it a bit too new? I should also mention at this point, that while I�??ve coded extensively for myself and sites I've written, I�??ve never released any code before (and the standard needs to be significantly higher). So, I�??d like to take the code I have now, tidy it up, package it, and release something in the next few weeks before looking to add the other features I�??ve mentioned above, but bear with me, this is a new one for me! >__<

Seeing as I'm going ahead with this I have added a forum page to my website to discuss the issues and post updates on my progress:
http://www.n-line.co.uk/forum/viewforum.php?f=11

Nick, I like where you're going with this. Did you know that PHPThumb, our underlying thumbnail library, supports automatic image watermarking and text watermarking?

All you have to do is set the filter (fltr) attribute of the phpThumb object (within generate_thumbnail).

"wmi" (WaterMarkImage)
[ex: &fltr[]=wmi|<f>|<a>|<o>|<m>] where
<f> is the filename of the image to overlay;
<a> is the alignment (one of BR, BL, TR, TL, C,
R, L, T, B, *) where B=bottom, T=top, L=left,
R=right, C=centre, *=tile);
<o> is opacity from 0 (transparent) to 100 (opaque)
(requires PHP v4.3.2, otherwise 100% opaque);
<m> is the edge (and inter-tile) margin in percent
- "wmt" (WaterMarkText)
[ex: &fltr[]=wmt|<t>|<s>|<a>|<c>|<f>|<o>|<m>|<n>]
where:
<t> is the text to use as a watermark;
<s> is the font size (1-5 for built-in font, or point
size for TrueType fonts);
<a> is the alignment (one of BR, BL, TR, TL, C, R, L,
T, B, * where B=bottom, T=top, L=left, R=right,
C=centre, *=tile);
<c> is the hex color of the text;
<f> is the filename of the TTF file (optional, if
omitted a built-in font will be used);
<o> is opacity from 0 (transparent) to 100 (opaque)
(requires PHP v4.3.2, otherwise 100% opaque);
<m> is the edge (and inter-tile) margin in percent;
<n> is the angle

As you can see, quite a bit of functionality just waiting to be used. I haven't seen your code yet, so you may be using this already. But if not, I just thought I'd give you a heads up so you're not adding any unnecessary code to the plugin.

More information within the /lib/phpthumb/docs/ folder of your Plogger installation.

As this thread is almost 5 years old, I think it's safe to assume the plugin mentioned has never been finished.

I hope that the developers of Plogger, or some other kind soul, will make such a thing because I think that is the only thing missing right now.