Changes

* what will I do with all my photos ? In praticepractice, most photos are never used, above all if they are not classified. It may even occur that they end being thrown to the bin.

* most users of your photos will be students for their mémoire or thesis, other collegues colleagues for scientific papers, other sites in Creative Commons, or maybe small publishers. Do you really wish to avoid such uses, or will you be happy instead that your photos have found a use?

Ajoutons que les Let us add that photos représentant des objets tirés de la representing objects out of nature ne sont pas protégeablesare normally not protectable. Si vous tenez vraiment à restreindre l'usage de vos If you really want to restrict the use of your photos, mettez-les en moyenne résolutionyou can put them in medium or low resolution. Si vous tenez à y surimposer des But if you want to superimpose restrictive mentions restrictives, alors faites-le sur un autre sitethen do it elsewhere, car tous les as all sites en in Creative Commons l'interdisentforbid it.

Si vous choisissez la licence If you choose the CC-BY-SA license (préférable sur preferable on Pl@ntUse et obligatoire sur and compulsory on Wikipedia), cela veut dire que vous autorisez quiconque à les réutiliserthis means that you allow anybody to reuse them. Votre intérêt est alors d'en faciliter l'utilisationYour interest is then to facilitate their reuse. Autant alors offrir la meilleure qualité et la meilleure It is better then to offer the best possible quality and the best résolution. De plusMoreover, téléversezupload them directly on Wikimedia Commons. This has two advantages: their visibility will be maximum, and WC will bring a high level of legal security to your images. As explained later, importing images to Pl@ntUse is then done automatically. === Photos from other authors ===You must obtain their agreement. Formelly, this should be done in written and registered somewhere, in case of further litigation. The easiest way is that authors themselves put their images on line. Wikimedia Commons elabored an automatic device to import photos from the FlickR site. As the user is free to choose a license and change it at any time, WC imagined a system by which two persons witness that the photo was in CC-les directement sur BY-SA at the time of its import. === Images from old works ===They are in principle frre of rights, but the photographer has rights on his own photos. Wikimedia Commonsconsiders that if images show 2D objects and identically reproduce the original, the photographer has exercised no originality and has had no choice; his work is thus not protectable under the US jurisprudence. Cela The situation in other countries is less clear. But if the image shows a deux avantages 3D object (a statue or an object in a museum), the photographer chosed an angle of view, a frame and a light, which justify his author's right. Images od 3D objects are thus fobidden on WC, unless the author himself puts them on line. See [http: leur visibilité sera maximale//commons.wikimedia.org/wiki/Commons:Licensing Commons:Licensing] and [http://commons.wikimedia.org/wiki/Commons:Policy_on_photographs_of_old_pictures Commons:Policy on photographs of old pictures]. So you can put on WC reproductions of any old image (more than 100 years...), et whether it is an engraving or a painting, whether it comes from a mural painting, a manuscript, an original book of any recent book reproducing such images. This is of utmost importance as such documents are precious sources for plant history. ==== Engravings in books ====You can of course copy images in the books which are accessible on Internet as pdf. Such pdf have a low resolution which is enough to read the text, but images are blurred and not really useful. The best solution is to have access to an original, and scan the images in high resolution (1200 dpi, in tif or png for engravings in black and white, in jpg for colour images). We only have to hope that libraries will do the job for books they are the only owners. ==== Images in enluminated manuscripts ====Such manuscripts are unique objects, maintained in libraries. Libraries used to ask for fees to photograph them, or reserved this right to registered photographers. Internet changes things, as it allows a broad access to images, with no need to come back to the original. You will find on WC apportera une bonne sécurité juridique à vos imagesof [http://commons. Comme expliqué ciwikimedia.org/wiki/Category:Tacuina_sanitatis Tacuinum Sanitatis]. WC obtained an agreement with the Bibliothèque nationale de France to reproduce the images of [http://commons.wikimedia.org/wiki/Template:PD-dessousBnFMandragorePic Mandragore], lthe image base of the enluminated manuscripts held by BNF (in low resolution !).  In brief, you can put on line images :* which are free of rights (they become so 70 years after the author'importation des s death);* of which you are yourself the author, or of which you obtained the authorisation of the author. In principle, representations of buildings created by an architect and objects conceived by a designer are submitted to copyright (but case law is uncertain). Photos showing faces of recognizable persons are equally submitted to right of images dans Pl@ntUse se fait ensuite automatiquement.Such cases fortunately don't have to do with plants!

Pour des gravures en noir sur fond blanc, le format PNG est préférable. On peut aussi utiliser TIFF, qui est un bon format de stockage, mais il semble que Mediawiki ait des problèmes pour gérer ce format (, et il est interdit sur Mediawiki Commons). Comme les scanneurs Epson donnent le choix seulement entre JPEG et TIFF, il vaut mieux choisir TIFF. On peut ensuite vérifier et corriger l'image sous Photoshop et l'enregistrer en PNG. Le seuil noir/blanc est un autre élément important. Faites des essais pour trouver le meilleur compromis. Vérifiez à la loupe avec l'original. Plus le seuil est élevé, plus l'image sera noire, des lignes ou points blancs au milieu du noir n'étant pas distingués. Plus il est bas, plus l'image sera claire, des lignes ou points noirs au milieu du blanc n'étant pas distingués. A titre d'exemple, les dessins au trait de Vilmorin-Andrieux ressortent bien à un seuil de 40, ce seuil allant de 0 à 255.

<nowiki>[[File:Nom de l'imageImage name.jpg|200px|thumb|left|légende de l'caption of the image]]</nowiki>

donne une gives an image de of 200 pixels placée à gaucheplaced at the left.

Si l'on souhaite placer une série d'If you wish to place a series of images côte à côteside by side, il faut utiliser la syntaxe you must use the syntax '''gallery''', par exemple comme suit for example as follows:

<nowiki><gallery widths=80px heights=80px perrow=9 caption=légende de la galerie"caption of the gallery">File:premièrefirst.jpg|[[première first image]]File:deuxièmesecond.jpg|[[deuxième second image]]

'''Perrow''' définit le nombre maximum d'images dans une rangée. Si on veut l'atteindre, il convient de réduire la largeur ('''widths''') et la hauteur ('''heights''') de chaque image. '''Caption=''' n'est utile que si l'on veut mettre un titre général à la galerie. On peut mettre un nombre indéterminé d'images à la suite. La légende de chaque image peut être un lien (comme sur l'exemple) ou en comporter un. Cela permet de créer autant de pages que d'images, ce qui est intéressant pour toutes les images d'un livre, ou pour tous les cultivars ou les taxons d'une collection botanique. A titre d'exemple, voici ce que nous avons fait pour [[:fr:Vilmorin-Andrieux, Les meilleurs blés]].