The chalk Handbook
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The chalk Handbook

Boudewijn Rempt

Casper Boemann

Cyrille Berger

Sander Koning

Revision 1.6 (2006-09-13)

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".

chalk is part of the KOffice package. chalk is a photo retouching, image editing application, but above all, a paint application that will allow you to create original art on your computer as if you were working with paint and brushes, pencils, pen and ink — or, at least, it will one day. We are continually working on extending chalk and making it better in every respect.


Table of Contents

1. Introduction
What is chalk?
Key features
Color management
Image formats
About this manual
About the application maintainer
2. Tutorial
Starting to know chalk
A Small selections and layers tutorial
Quick start guides
Crop an area and save it
Draw a rectangle on your picture
Working with tablets
Configuring it
First contact with the tablet
Outlines of a flower
Colorization
3. Images
Working with files
4. Views
Zooming
Working with views
Miscellaneous view options
5. Layers
Background information on layers
The layer box
Layer overview
Layer options
Working with layers
Adjustment Layers
Adjustment layers and selections
A note on projections
Compositing modes
Normal
Multiply
Burn, Dodge, Divide and Screen
Overlay
Darken
Lighten
Hue, Saturation and Value
Color
Layer Masks
Editing the mask
6. Selections
Making a selection
Painting your selection
Unselecting
Making a new selection
Selecting a contiguous area (magic wand)
Selecting similar colors
Inverting the selection
7. Filters
The Auto Contrast filter
The Blur filter
The Brightness / Contrast filter
The Bumpmap filter
The CImg Image Restoration filter
The Color Adjustment filter
The Color to Alpha filter
The Color Transfer filter
The Custom Convolution filter
The Desaturate filter
The Edge Detection filters
The Emboss filters
The Gaussian Blur filter
The Gaussian Noise Reduction filter
The Invert filter
The Lens Correction filter
The Maximize Channel filter
The Mean Removal filter
The Minimize Channel filter
The Oilpaint filter
The Pixelize filter
The Raindrops filter
The Random Noise filter
The Random Pick filter
The Round Corners filter
The Sharpen filter
The Small Tiles filter
The Sobel filter
The Unsharp Mask filter
The Wave filter
The Wavelet Noise Reduction filter
8. Colorspaces
Introduction to colorspaces
What is a colorspace?
Available colorspaces
The RGB color models
The CMYK color model
The L*a*b* color model
The LMS color model
The YCbCr color model
The Gray color model
9. Command Reference
Menus
The File Menu
The Edit Menu
The View Menu
The Image Menu
The Layer Menu
The Select Menu
The Filter Menu
The Scripts Menu
The Settings Menu
The Help Menu
Toolbars
The File Toolbar
The Edit Toolbar
The Navigation Toolbar
The Chalk Toolbar
The Brushes and Stuff Toolbar
Palettes
The Control box palette
The Colors palette
The Layers palette
Dialogs
Dialogs for working with images
Dialogs for working with layers
Dialogs for working with filters
Miscellaneous dialogs
10. Settings
The Preferences dialog
The General section
The Display section
The Color Management section
The Performance section
The Tablet section
The Grid section
11. Developer's information
Scripting
Variables in the Krosschalkcore module
Functions in the Krosschalkcore module
Descriptions and function lists for various objects in Krosschalkcore
Resources
Developing chalk Plugins
Introduction
Creating plugins
Colorspaces
Filters
Tools
Paint operations
View plugins
Import/Export filters
12. Questions and Answers
13. Credits and License
A. Installation
How to obtain chalk
Requirements
Compilation and Installation
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