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Contents 1 Welcome to the Graphics village pump ! 2 Talking, Acting 3 May 2008 4 Looking to scan some more images 5 Problem with Image:Armoiries des Armoises Differdange.svg 6 JPG thumbnails and previews

Graphics village pump archives:

• April 2007
• May 2007
• June 2007
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• April 2008

[edit] May 2008

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Commons:Graphics village pump/May 2008

[edit] Looking to scan some more images

I'm looking to scan more images from public domain publications, and I want some advice. What do you think is a good resolution to scan at? I've been using 600 dpi, though it does create very large images. If the images are very large, is there any utility in uploading an 'economy size' set as well, e.g. smaller jpgs to go with pngs? What about backgrounds - is there anywhere or anyone who could give me some training in how to make the backgrounds look nice (mainly removing the texture of the paper for a more 'black on white' effect? My partner in crime hasn't been active lately, so I need help from someone else. Richard001 10:26, 28 April 2008 (UTC)

Scan at the highest resolution you can. Experiment to find out whether that limit is set by your scanner, your computer's capabilities, or Commons' unfortunate file size limitations.

The Mediawiki software automatically creates low-resolution versions, which are the ones that appear in most places. It doesn't convert pngs to jpegs, but that size difference is not that bad when scaled down anyway (somewhat depending on the content). I wouldn't worry about it.

Curve adjustments are usually a good way to make detailed contrast tweaks. In the Gimp, it's under Tools, Color Tools, Curves. —LX (talk, contribs) 11:14, 28 April 2008 (UTC)

Ah, simpler than I thought. What do you think of Image:Expression of the Emotions Figure 4.png? If there's nothing else I can improve upon I'll get on with scanning, editing and uploading the rest. Richard001 08:18, 9 May 2008 (UTC)

Looks fine to me, but I'm certainly no expert critic. —LX (talk, contribs) 09:13, 9 May 2008 (UTC)

I've also uploaded Image:Naturalist on the River Amazons figure 1.png, which is the high quality touched up version Adam sent to me. I've compared his version with the original PNG I sent to him and I think I can see what he has done: made the light parts white and the dark parts black, more of less. I've figured out how this is done in Photoshop too; basically just a quick adjustment using curves. He was going to do the touch ups but seems to have vanished, so I think I'll do this for the rest of the Naturalist images myself. I might post a couple more of my own here once I've uploaded. There are about 40 images so I want to get it done right. Richard001 09:59, 9 May 2008 (UTC)

I've done a couple from Naturalist myself now: Image:Naturalist on the River Amazons figure 12.png and Image:Naturalist on the River Amazons figure 2.png, and also a few more from Darwin (see Category:The Expression of the Emotions in Man and Animals). Am I doing the colour adjustment (or shade adjustment, since it's grayscale) right? Any other tips/criticism? I'd be interested in hearing about Image:Naturalist on the River Amazons figure 3.png: This Γ shaped image had text in the white space. Adam suggested the only thing we could do is leave it as a full page illustration with text, however I've replaced the text with the regular background and then turned all the lighter shades into pure white. I think this is the best way to deal with these ones, no? Richard001 00:40, 10 May 2008 (UTC)

Funny how this has only just really occurred to me: should I be including the captions too, or cropping them out whenever possible? Richard001 08:49, 12 May 2008 (UTC)

I'd say do not include them in the image itself, unless there is some particular reason to do it. It's usually better to quote it in the description field of the information template. That way it can be searched and otherwise processed as textual data, which is far more useful. —LX (talk, contribs) 09:42, 12 May 2008 (UTC)

I'm kind of leaning toward not including the captions too, as the text seems to do the job fine by itself, and they interfere with using the image just as an illustration somewhat. Another user disagrees though, so I think I'll bring it up at the main VP to get some more comments. Regarding quoting them in the description, it's certainly not an either/or matter, in fact if you look at the ones I've uploaded you'll see I have quoted all the captions already. The versions from Emotions at Darwin Online don't keep the captions (although they're not the best examples, as they also have the text showing through strongly from the other side of the page. Richard001 01:19, 13 May 2008 (UTC)

[edit] Problem with Image:Armoiries des Armoises Differdange.svg

Hi, I seem to have a problem with . I can't seem to fix the code, when I look at this image on my side (inkscape, firefox and explorer) I see the correct colours. But once I upload it here to commons the yellow (FCEF3C) colour on the outside has seemingly changed to white (FFFFFF) (not in the middle shield (eskutcheon) which is correct).--Caranorn 20:10, 30 April 2008 (UTC)

Not sure why it worked differently in different software, but I took out a white-filled path which didn't seem to do anything, and it's now OK (I think). By the way, it seems that dozens and dozens (if not hundreds and hundreds) of heraldic SVG files have the SVG title element "Flag of Canton of Valais (Wallis)", even though they're most definitely not images of the flag of Valais... AnonMoos 10:44, 1 May 2008 (UTC)

Thanks for the help AnonMoos. And yes, I noticed that some carryover information from very early coat of arms images remains in most .svg files of the French Projet Blason. I only started using the .svg format this past week, though I guess I should have removed the redundant information as soon as I noticed. Maybe I can still correct this for future images I upload.--Caranorn 13:32, 1 May 2008 (UTC)

[edit] JPG thumbnails and previews

I uploaded Ferrari Raikkonen 2008 Spanish GP.jpg and the thumbnail just doesn't look right, nor the preview. It's full of artifacts, and the quality seems to be quite low. If you open the image at full size, you'll see that the quality is much better than the preview. It happens with other pictures too, but not with all. What's the reason? What's the downsampling script of MediaWiki? Is there any way to avoid this, for instance with some special settings in Photoshop? - Keta 12:10, 1 May 2008 (UTC)