darktable page lede image
darktable page lede image

Capitolo 2. Tavolo luminoso

Il tavolo luminoso è il luogo in cui si gestiscono tutte le immagini: valutazione, esportazione e molto altro.

2.1. Panoramica

Nella vista centrale, le immagini appaiono come anteprime, circondate da un riquadro. Quando il mouse passa sopra a un'immagine, la sua valutazione e le sue etichette colori appaiono nel riquadro, insieme a un indicatore che avvisa se l'immagine è già stata modificata nella camera oscura. Inoltre, quando il mouse passa sopra a un'immagine, le informazioni sull'immagine (i metadati Exif) appaiono nel pannello informazioni immagine in basso a sinistra.

While the mouse is over an image frame, there are a number of actions you can perform. Here is a table of keyboard shortcuts and assigned actions.

0 – 5 set the rating of the image; if an image has 1 star and you hit the 1 key, the image will be unrated. Pressing R rejects the image.
F1 – F5 set a color label
Ctrl+C copy the history stack
Ctrl+V paste the copied history stack
D open in darkroom view for developing
W fully zoom into the image while the key is pressed
Ctrl+W fully zoom into the image and show areas in focus

Il pulsante sovrapposizione , che si trova sul pannello superiore, visualizza o nasconde la valutazione (stelle) e l'indicatore di immagine modificata su tutte le anteprime. Normalmente queste indicazioni sono visibili solamente sull'anteprima che si trova sotto il cursore del mouse. Il pulsante sovrapposizione è disponibile anche nelle altre viste che permettono di interagire con i provini (vedi Sezione 1.2.3, «Provini» e Sezione 3.3.11.8, «Provini»).

Premendo il pulsante sulla destra del pannello inferiore potete definire il profilo colore del vostro monitor. Potete impostare questa variante in «Profilo di sistema dello schermo» (default) e lasciare che sia darktable ad applicare il profilo di sistema oppure, in alternativa, potete selezionare uno dei profili ICC salvati in $DARKTABLE/share/darktable/color/out e $HOME/.config/darktable/color/out. $DARKTABLE indica la directory di installazione di darktable e $HOME la vostra cartella utente (home). Per maggiori dettagli sulla gestione del colore potete vedere Sezione 3.2.6, «Gestione del colore».

In the center of the bottom panel you have an option to choose between different layouts.

2.1.1. Filemanager

This is the default mode to view thumbnails of the images.

In this layout, you can can change the number of images in each row, using the slider next to the layouts option, or by using Ctrl+(mouse wheel). Use your mouse wheel to navigate through your collection.

You can navigate left/right/up/down through your collection using ←/→/↑/↓. Pressing G goes to the top, Shift+G to the bottom, PageUp brings you one page up and PageDown one page down.

You can select the image under the pointer by left-clicking on its thumbnail or by pressing Return. A range of images is selected by clicking on the first one and then Shift+clicking on the last one. Images are added or removed from your selection by Ctrl+clicking on their thumbnails or pressing Spacebar.

To locate where you are in a collection, there are indicators at the extreme borders of the window: left/right for your position.

2.1.2. Zoomable lighttable

Zoomable lighttable layout inherits from most the filemanager features, with some noticeable changes :

Scroll with your mouse wheel to zoom in and out. Moving the mouse while pressing the left mouse button allows you to navigate through your collection.

To locate where you are in a collection, there are indicators at the extreme borders of the window: left/right and top/bottom for your vertical and your horizontal position, respectively.

2.1.3. Culling

Culling layout allow to display images side by side to easily compare them. There's 2 different modes to define the number of images to show at the same time : «Fixed mode» and «Dynamic mode».

Once in culling mode, you can switch between those 2 mode with < key accel.

2.1.3.1. Fixed mode

In fixed mode, the number of image to display is always the same, independently of the selection length. This number can be set with the slider in the bottom panel, near the modes option.

In this mode, you'll navigate through all selected images. If no selection is set (or if only 1 image is selected), you'll navigate through all images.

Default keyboard shortcut for entering culling in fixed mode is X.

2.1.3.2. Dynamic mode

In dynamic mode, all the selected images are shown. If no selection is set (or if only 1 image is selected) last value from fixed mode is used.

Default keyboard shortcut for entering culling in dynamic mode is Ctrl+X.

2.1.3.3. Zoom and pan

In culling mode, you can zoom and pan in the images to see details. Images can be zoomed until 100%.

Ctrl+scroll to zoom in/out images. left click + drag to pan in zoomed images.

By default, zooming and panning are synchronized between all visible images. If you want to zoom or pan only a specific image, add Shift key to above actions.

To enhance performance in zoomed images loading, you can enable the disk backend for full preview cache in preferences (see Sezione 8.8, «Cpu / gpu / memory»). Keep in mind that this could take a lot of disk space...

2.1.4. Full preview

While holding down the W key a fully zoomed preview of the image under the mouse cursor is displayed. You can use this feature for a quick inspection of image quality while rating and selecting images.

Holding down the Ctlr+W key fully zooms into the image and additionally activates an analysis for sharp regions, detecting those parts of the image that are in focus. Areas of high sharpness are indicated by a red border – the higher the color intensity the better the sharpness. In case that no area of high sharpness is detected darktable indicates areas of moderate sharpness with a blue border. For this tool to work the input image needs to hold an embedded JPEG thumbnail which is the case for most raw files.

Sometimes pressing W or Ctrl+W may not reveal an immediate effect – in that case please click into the center area and press the corresponding key again.

Immagine zoomata mentre si tiene premuto il tasto Ctrl+W con l'indicazione di tutte le aree nitide a fuoco. L'indicazione della nitidezza si basa sull'anteprima JPEG incorporata nel file raw originale indipendentemente da qualsiasi processo di sviluppo effettuato con darktable.

If you want the full preview to stay, without having to hold W key, you can use sticky preview mode with Alt+W key or Ctrl+Alt+W if you want focus detection. In sticky preview mode, you can zoom and pan in the image, exactly like in culling layout (see Sezione 2.1.3.3, «Zoom and pan»).