Comparing Different Modes 344 Chapter 22: Channels And Duotones ......................... 351 RGB Channels 352 Alpha Channels 353 Using Channels For Spot Color Separation 355 PART VI Gimp • In-depth discussion on how to use layers — the key factor to advanced image manipulation • Channels: What they are and how to use them Part VI • The filter plug-ins available for Gimp; a glimpse sampling for all paint tools for high-quality anti-aliasing • Full Alpha channel support • Layers and channels • A procedural database for calling internal Gimp functions from external programs, such as Script-Fu

high-quality anti-aliasing • Full Alpha channel support for working with transparency • Layers and channels • A procedural database for calling internal GIMP functions from external programs, such as Script-Fu recover. In the File menu from the Main Toolbox, selecting File Dialogs Create New Dock Layers, Channels, and Paths will give you a Layers dialog just like the one shown. In the same menu, selecting File (The Layers dialog in the screenshot actually contains four dialogs, represented by tabs: Layers, Channels, Paths, and Undo.) The system takes a little while to learn, but once you learn it, we hope that

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233 13.2.2 Channels Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . high-quality anti-aliasing • Full Alpha channel support for working with transparency • Layers and channels • A procedural database for calling internal GIMP functions from external programs, such as Script-Fu called ‘layers’ In addition to a stack of layers, a GIMP image may contain a selection mask, a set of channels, and a set of paths. In fact, GIMP provides a mechanism for attaching arbitrary pieces of data to

Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347 15.2.2 Channels Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352 15.2.3 Paths high-quality anti-aliasing. • Full Alpha channel support for working with transparency. • Layers and channels. 3 CHAPTER 1. INTRODUCTION 1.2. WHAT’S NEW IN GIMP 2.10.18? • A procedural database for calling “layers”. In addition to a stack of layers, a GIMP image may contain a selection mask, a set of channels, and a set of paths. In fact, GIMP provides a mechanism for attaching arbitrary pieces of data,

In an image editing software, red, green and blue are referred as channels of the image. In addition to the colour channels, the alpha channel is used to store the opacity of the pixels. (Opacity

editing of colours. This is not ethically acceptable for publication! Alpha channel • Alpha channels are masks through which you can display images • Within an alpha channel: – White acts as the