A thumbnail of a painting we do not have is better than no image of a painting we do not have. Especially if it comes with a good metadata. Often others are inspired to search for better images and replace the thumbnail. That said 595 x 842 is quite small.

JarekT.

(user:jarekt)

From: Commons-l [mailto:commons-l-bounces@lists.wikimedia.org] On Behalf Of Diego Delso
Sent: Thursday, May 05, 2016 8:44 AM
To: Wikimedia Commons Discussion List
Subject: Re: [Commons-l] Size of images donated

Hi Romaine,

I agree with you 595 x 842 pixels = 0,5 Megapixel, that is definitively too low.

The minimum resolution required for a Quality Image [1] and also for eligible winners in contests like Wiki Loves Earth is 2 Megapixel [2]. That would be the minimum to me.

Regards,

Diego

[1] https://commons.wikimedia.org/wiki/Commons:Image_guidelines#Quality_and_featured_photographic_images

[2] https://commons.wikimedia.org/wiki/Commons:Wiki_Loves_Earth_2016/Rules#Rules

2016-05-05 13:51 GMT+02:00 Romaine Wiki <romaine.wiki@gmail.com>:

Hi all,

A professional photo agency offers us (Wikimedia Belgium) a donation of images of art works. They now offer as a start these images with 595 x 842 pixels at 72 dpi. This size is almost double of that from a thumbnail size on Wikipedia. My own (not the most modern) smartphone makes images at 5.312 × 2.988 pixels at 72 dpi. Seeing the size of these images I think they are to low.

My question is: what is the minimum of quality we should ask?

Thanks!

Romaine

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