Perspective . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312 14.4.9 3D Transform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314 14.4 Composited preview. • Dockable areas now highlighted when a dockable dialog is being dragged. • New 3D Transform tool to rotate and pan items: Section 14.4.9. • Much smoother brush outline preview motion Components of the RGB and CMY Color Model (a) In the RGB Color Model, mixing Red, Green and Blue gives White, which is what hap- pens on your screen. (b) In the CMY(K) color model, mixing Cyan, Magenta and Yellow

from 0 to 255. The exact meaning of this value depends on the type of channel, e.g. in the RGB color model the value in the R-channel means the amount of red which is added to the colour of the different pixels Components of the RGB and CMY Color Model (a) In the RGB Color Model, mixing Red, Green and Blue gives White. That’s what happens on your screen. (b) In the CMY(K) color model, mixing Cyan, Magenta and Yellow has a "myarray(x,y,z)" form for a 3 dimensions array (3D). It’s easy to imagine a 2D array: on a paper it’s an array with rows and columns With a 3d array we don’t talk rows and columns but Dimensions and

the active layer or selection into a greyscale image seen through a colored glass. See HSV Color Model for Hue, Saturation, Luminosity. Activate Tool The Colorize Tool can be called in the following y d o c b o o k 2 o d f The Mode submenu contains commands which let you change the color model of the image. There are three modes. Activating the Submenu • You can access this submenu from their complementary colors. For more information about colors, see the Glossary entry about Color Model. This command only works on layers of RGB and Grayscale images. If the current image is Indexed

Grayscale And Indexed” on page 266). The rule of thumb is: Always work with RGB (or with whatever color model you need) and don’t convert it until you’re finished. GUASH One of Gimp’s most useful features is FG to BG (HSV) option (HSV stands for Hue, Saturation and Value). HSV Gradients HSV is a color model based on a 360-degree spectrum circle. This means that a gradient using an HSV blend will not simply faster on the right side. Coloring The coloring type for segment submenu lets you choose a color model for your selection or segment. You can choose Plain RGB and two kinds of HSV. See “Color Models” starting