## 3. Dialoguri legate de conținut imagine

### 3.1. Dialog culoare FG/BG

The Color dialog lets you pick and manage colors. There are several different modes you can use to select colors. It also offers a color picker to select a color anywhere on your screen.

This dialog works on either the foreground or the background color.

#### 3.1.1. Activarea dialogului

Acest dialog este un dialog andocabil; a se vedea secţiunea Secțiune 2.3, „Dialoguri și andocare” pentru ajutor privind manevrarea.

Puteți să îl accesați:

- From the main menu: Windows → Dockable Dialogs → Colors.

- From the Tab menu in any dockable dialog by clicking the tab menu button and selecting Add Tab → Colors.

- From the toolbox: click on the current Foreground or Background color.

In the Windows menu, there is a list of detached windows which exists only if at least one dialog remains open. In this case, you can raise the „FG/BG” dialog from the main menu: Windows → FG/BG.

#### 3.1.2. Utilizarea dialogului „ FG/BG color ”

The dialog offers a number of different color selector modes at the top:

GIMP

  Fig. 15.17. GIMP Color Selector

  Cu selectorul de culoare GIMP, selectați o culoare făcând clic pe o bandă-dimensională situat la marginea din dreapta, și apoi într-o zonă bidimensional situată pe stânga. Banda monodimensională poate codifica oricare dintre parametrii de culoare H, S, V, R, G sau B, determinată prin apăsare pe butoanele adiacente. Zona bidimensională codifică apoi cei doi parametri de culoare complementari.

CMYK

  Fig. 15.18. CMYK Color Selector

  You get to this selector by clicking on the CMYK icon. The CMYK view gives you the possibility to manage colors from the CMYK color model. If a CMYK profile is attached to the image, the profile will be used to determine the CMYK colors. See Soft-Proof Profile for more information. Otherwise, a "naive" color conversion will be performed.

Acuarelă

  Fig. 15.19. Selector culoare acuarelă

  This selector is a little different than the other models. The principle consists in changing the current foreground color by clicking in the rectangular palette. If the current foreground color is for example white, then it turns reddish by clicking in the red color area. Repeated clicking strengthens the effect. With the slider, which is next to the color palette, you can set the color quantity per mouse click. The higher the sliding control is, the more color is taken up per click.

Wheel

  Fig. 15.20. Wheel Color Selector

  This selector uses the HSV color model. Click in the chromatic circle and drag the mouse pointer to select the Hue. Click-and-drag in the triangle to vary the Saturation (vertically) and Value (horizontally).

Paletă

  Fig. 15.21. Selector culoare paletă

  This color selector brings up a list of the colors from the current palette in the Palettes dialog. You can set GIMP's foreground or background colors by clicking on colors in the colors display. You can also use the arrow keys to move within the list of colors.

Cântare

  Fig. 15.22. Scales Color Selector

  This selector displays a global view of the R, G, B channels and either the H, S, V or L, c, h values, placed in sliders. The numbers can be represented as 0 to 255 or 0.0 to 100.0 ranges.

  Magenta areas on the sliders indicate colors that are out of gamut. This means that the value on the slider would mathematically define a color that does not exist in your chosen color profile. For more information, see Gamut. If you move a slider to a value that is out of gamut, the color remains set to the last in-gamut color that you selected.

  | Notă
  You can set which color is used to mark out of gamut colors in the Soft-Proofing Preferences.

At the bottom, further options and tools are available:

Foreground and background color

  The symbol consisting of two arrows allows you to exchange the foreground and background color. At the bottom left of this icon, below the foreground color block, you find a switching surface with two small, one black and the other white, partially overlapping squares. If you click on these, the front and background color are reset to black and white respectively.

Prelevator de culoare

  The Color Dialog color picker has a completely different behavior than the color picker tool. Instead of picking the colors from the active image, you're able to pick colors from the entire screen.

  Dezavantajul este că obții culori după ce ele au fost procesate de stiva de culori completă a sistemului, în special administrarea culorii. Înseamnă că valorile de culoare rezultante pot să rezulte diferit față de cele întoarse de unealta de selectare a culorii când se alege pe canava. Depinde de voi să faceți o alegere în cunoștință de ce selector de culori să utilizați.

Notație HTML

  This is a text field with six characters. See HTML notation. You can also use the CSS keywords; enter the first letter of a color to get a list of colors with their keyword:

  Fig. 15.23. Exemplu de cuvinte cheie CSS

  Right-clicking in the HTML Notation text box opens a context menu that allows you to edit your notation, particularly to paste a complex notation you have copied elsewhere.

Last used colors

  Twelve buttons at the bottom show the last used colors. You may choose a color by clicking on one of these buttons or add the current foreground or background color to this history list.

2.7. Anulare istoric dialog |  | 3.2. Dialog peneluri

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