issue147:darktable
Différences
Ci-dessous, les différences entre deux révisions de la page.
Les deux révisions précédentesRévision précédenteProchaine révision | Révision précédente | ||
issue147:darktable [2019/08/08 08:14] – d52fr | issue147:darktable [2019/08/12 15:19] (Version actuelle) – andre_domenech | ||
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**Disclaimer: | **Disclaimer: | ||
- | Avertissement : En aucune façon, je ne suis un expert en manipulation de photos. Je connais juste un gars qui a un chien qui m'a donné quelques puces. J'ai pensé que ça pourrait vous aider aussi de gratter une démangeaison. | + | Avertissement : Je ne suis un expert en manipulation de photos |
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Below these blocks you will see a tiny colour picker (the eye-dropper icon). Click on it.** | Below these blocks you will see a tiny colour picker (the eye-dropper icon). Click on it.** | ||
- | Actuellement, | + | Actuellement, |
- | Sous ces blocs, vous verrez une petite pipette pour couleur (l' | + | Sous ces blocs, vous verrez une petite pipette pour couleur (l' |
**Now I need you to change focus to the leftmost panel. Unfold the ‘color picker‘ tab and change the selection from ‘point’ to ‘area’. Select a patch of grass. You should see a white square in your ‘color lookup table’ appear inside one of the colours. In the above image, it is in the blue block, but yours should be in the first brown block (if you are using the free picture above). This is the power of the Darktable algorithms at work. It automatically picked the most compatible swath for you. Please feel free to hover over anything and read the tool tips. I have picked a spot on the centre left, then a spot in the centre, and it made no difference. Every time the algorithm picked the first preset. Hover your mouse over this preset and you can see the RGB values right before the explanation starts.** | **Now I need you to change focus to the leftmost panel. Unfold the ‘color picker‘ tab and change the selection from ‘point’ to ‘area’. Select a patch of grass. You should see a white square in your ‘color lookup table’ appear inside one of the colours. In the above image, it is in the blue block, but yours should be in the first brown block (if you are using the free picture above). This is the power of the Darktable algorithms at work. It automatically picked the most compatible swath for you. Please feel free to hover over anything and read the tool tips. I have picked a spot on the centre left, then a spot in the centre, and it made no difference. Every time the algorithm picked the first preset. Hover your mouse over this preset and you can see the RGB values right before the explanation starts.** | ||
- | Maintenant, | + | Maintenant, vous devez porter votre attention sur le panneau le plus à gauche. Dépliez l' |
**We have not changed anything in the picture yet, but we have selected the ‘colour area’ in which we would like to work. Now I want to travel forwards (or backwards) in time to summer. However, in summer, this scene has a lot more “life”. How do I insert “life” into the picture, you may ask? Well, with colour. In summer, greens are more prevalent, the sky may be deeper. Shall we experiment? | **We have not changed anything in the picture yet, but we have selected the ‘colour area’ in which we would like to work. Now I want to travel forwards (or backwards) in time to summer. However, in summer, this scene has a lot more “life”. How do I insert “life” into the picture, you may ask? Well, with colour. In summer, greens are more prevalent, the sky may be deeper. Shall we experiment? | ||
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Back to the rightmost pane. We have four sliders: 1. lightness, 2. green/red, 3. blue/ | Back to the rightmost pane. We have four sliders: 1. lightness, 2. green/red, 3. blue/ | ||
- | Nous n' | + | Nous n' |
- | Revenons au panneau de droite. Nous avons quatre réglettes : 1. clarté, 2. vert/rouge, 3. bleu/jaune, 4. saturation. Le choix évident est de commencer avec le vert/rouge. Mettez-le n' | + | Revenons au panneau de droite. Nous avons quatre réglettes : 1. clarté, 2. vert/rouge, 3. bleu/jaune, 4. saturation. Le choix évident est de commencer avec le vert/rouge. Mettez-le n' |
**The values I am giving you are not cut in stone, rather they are a guide to get your picture more or less like mine, that you can see the results. Already your picture should be less ‘winter’. | **The values I am giving you are not cut in stone, rather they are a guide to get your picture more or less like mine, that you can see the results. Already your picture should be less ‘winter’. | ||
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Again, I need you to select the eye-dropper icon and do the same with patch in the sky. We will now add some drama to our dreary dry landscape. Pick the grey area to the left of the mountain. Add some blue, we do not need dirty winter skies. In the image, you will see that I left my selection rectangle in the spot that I selected. I changed my blue values between minus fifteen (-15) and minus twenty (-20). We are going to tweak everything today to get the most out of this picture! However, I am going to leave the sky above the clouds – the clouds and the mountain are up to you. This will be your homework, and if you are totally new to Darkroom, this will be your baptism of fire. We would love to see your edits. Remember it does not have to be like I did it, you can change this serene landscape into an alien one. The limits are your imagination!** | Again, I need you to select the eye-dropper icon and do the same with patch in the sky. We will now add some drama to our dreary dry landscape. Pick the grey area to the left of the mountain. Add some blue, we do not need dirty winter skies. In the image, you will see that I left my selection rectangle in the spot that I selected. I changed my blue values between minus fifteen (-15) and minus twenty (-20). We are going to tweak everything today to get the most out of this picture! However, I am going to leave the sky above the clouds – the clouds and the mountain are up to you. This will be your homework, and if you are totally new to Darkroom, this will be your baptism of fire. We would love to see your edits. Remember it does not have to be like I did it, you can change this serene landscape into an alien one. The limits are your imagination!** | ||
- | Les valeurs que je vous donne ne sont pas gravées dans le marbre ; elles sont plutôt un guide pour pour que vous obteniez une image plus ou moins proche de al mienne, pour que vous puissiez voir les résultats. Votre image fait déjà moins « hiver ». | + | Les valeurs que je vous donne ne sont pas gravées dans le marbre ; elles sont plutôt un guide pour que vous obteniez une image plus ou moins proche de la mienne |
- | À nouveau, | + | À nouveau, vous devez sélectionner |
**Just remember baby steps! Small value changes at a time. The recipe is: pick your area, make changes to that area, stand back and look at it - and wash, rinse, repeat. The power in the Darktable algorithms will do the heavy lifting for you. You may be pleasantly surprised at what this powerful open source beast can do! Yes, Darktable is a beast. We haven’t even scratched the surface of what is possible. | **Just remember baby steps! Small value changes at a time. The recipe is: pick your area, make changes to that area, stand back and look at it - and wash, rinse, repeat. The power in the Darktable algorithms will do the heavy lifting for you. You may be pleasantly surprised at what this powerful open source beast can do! Yes, Darktable is a beast. We haven’t even scratched the surface of what is possible. | ||
Again, as per most things you do on a computer, this is not the only way to do it, but it is the easiest. Write to us and let us know if you would like to know about the alternative ways or would like a ‘deep dive’ on this subject. ** | Again, as per most things you do on a computer, this is not the only way to do it, but it is the easiest. Write to us and let us know if you would like to know about the alternative ways or would like a ‘deep dive’ on this subject. ** | ||
+ | |||
+ | Souvenez-vous simplement de vos premiers pas de bébé ! De petits changements de valeurs à chaque fois. La recette est : choisisez une zone, faites des modifications pour cette zone, reculez-vous et regardez ; et lavez, rincez et répétez. La puissance des algorithmes de Darktable fera pour vous le plus gros de la transformation. Vous pourriez être agréablement surpris de ce que peut faire ce puissant animal Open Source ! Oui, Darktable est une sacrée bête. Nous avons à peine effleuré la surface de ce qui est possible. | ||
+ | |||
+ | Je me répète. Comme pour la plupart des choses que vous faites avec un ordinateur, ce n'est pas la seule façon de faire, mais c'est la plus facile. Écrivez-nous et dites-nous si vous aimeriez connaître des solutions alternatives ou souhaiteriez un « plongeon en profondeur » sur ce sujet. | ||
**I will edit my version a bit more and add the final result. After my colour edits, I am going to go to my tone group and pick ‘local contrast’ (you know how to add modules if you don’t see it) and sharpen the image by boosting the ‘detail’ to 200%. This should make your picture jump off the screen. (Try it and see!). Feel free to up the shadows quality, to deepen those recesses. Your image should now be a far cry from the original. Yes, that was a pun, but it is a gamer reference, sorry. | **I will edit my version a bit more and add the final result. After my colour edits, I am going to go to my tone group and pick ‘local contrast’ (you know how to add modules if you don’t see it) and sharpen the image by boosting the ‘detail’ to 200%. This should make your picture jump off the screen. (Try it and see!). Feel free to up the shadows quality, to deepen those recesses. Your image should now be a far cry from the original. Yes, that was a pun, but it is a gamer reference, sorry. | ||
Shall we compare? Move to the very left pane again and choose ‘snapshot’ This should take a screen grab of what we have now. Right below the snapshot tab, you will see the ‘history’ tab. Expand this tab and click on the very last entry, which should be the original image. (It should be edit number zero). On your main editing window, you can now move your slider and see the differences. Your image may not look like mine, but I do not want you to copy me 100%. It must look good to YOU. ** | Shall we compare? Move to the very left pane again and choose ‘snapshot’ This should take a screen grab of what we have now. Right below the snapshot tab, you will see the ‘history’ tab. Expand this tab and click on the very last entry, which should be the original image. (It should be edit number zero). On your main editing window, you can now move your slider and see the differences. Your image may not look like mine, but I do not want you to copy me 100%. It must look good to YOU. ** | ||
+ | |||
+ | Je modifierai un peu plus ma version et ajouterai une touche finale. Après les modifications de couleurs, je vais passer au module de tonalité, prendre le « contraste local » (vous savez ajouter des modules si vous ne le voyez pas) et accentuer l' | ||
+ | |||
+ | Voulez-vous comparer ? Allez à nouveau au panneau de gauche et choisissez « instantané ». Cela devrait faire une capture d' | ||
**Keep fiddling, it is the only way you will learn. You are welcome to read the manual at: https:// | **Keep fiddling, it is the only way you will learn. You are welcome to read the manual at: https:// | ||
If you learned something today, great! If you did not, why not send us your article, and help thousands of FCM readers? Feel free to correct me on anything. ** | If you learned something today, great! If you did not, why not send us your article, and help thousands of FCM readers? Feel free to correct me on anything. ** | ||
+ | |||
+ | Continuez votre bricolage. C'est la seule façon d' | ||
+ | |||
+ | Si vous avez appris quelque chose aujourd' | ||
+ | |||
**This is our final image and we have definitely travelled through ‘time’. Time travel can be a horrendous ‘time-sink’, | **This is our final image and we have definitely travelled through ‘time’. Time travel can be a horrendous ‘time-sink’, | ||
+ | |||
+ | Voici notre image finale et nous avons vraiment voyagé dans le « temps ». Le voyage dans le temps peut être une épouvantable « perte de temps ». Vous voilà prévenu ! Bonnes modifications ! | ||
issue147/darktable.1565244887.txt.gz · Dernière modification : 2019/08/08 08:14 de d52fr