Scanning Using A UNIX Or Linux System 205 Calibration 206 Color Calibration 208 In-Depth Information 210 Resolution 212 Tables 216 Chapter 15: Scanning And Scanners...... Value Invert 441 Chapter 28: Combine Filters ........................................ 443 Depth Merge 444 Film 447 Fuse 448 Chapter 29: Cryptographic Filters.................... buy. • Installation of Sane (Gimp’s scanner interface) and usage of Sane within Gimp Part V • In-depth discussion about the image menu, which includes color, brightness, curves and other image adjustments

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 770 17.10.2 Depth Merge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 770 17.10.3 . . . 1001 X Tone Mapping and Shadow Recovery Using GIMP’s ‘Colors/Exposure’ 1003 .16 High bit depth GIMP’s floating point “Colors/Exposure”: much better than Curves for lightening the shadows and midtones . . . 1005 .17 A step-by-step example showing how to recover shadow information using high bit depth GIMP’s floating point “Colors/Exposure” . . . . . . . . . . . . . . . . . . . . . . . . . . . 1006

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 592 15.14.2 Depth Merge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . order to make sense of the rest of the documentation. Everything here is explained in much greater depth elsewhere. With a few exceptions, we have avoided cluttering this section with a lot of links and Sometimes, a small size is important (for web sites) and at other times, retaining a high colour depth in all its glory (a family portrait) is what you want. GIMP can handle all of this, and more, primarily

S a r o j J u n g h a r e Page 4 The colour depth, or bit depth, is the number of data bits used to represent a pixel. The colour depth of a digital photo is usually 24 bits, which is having Grayscale images, having only one channel, usually have a colour depth of 8 bit. Also, Black and white images have a colour depth of 1 bit. It is very difficult to select a colour in the RGB Colour

order to make sense of the rest of the documentation. Everything here is explained in much greater depth elsewhere. With a few exceptions, we have avoided cluttering this section with a lot of links and of possible values from 0 to 255; in computing terminology, a depth of 8 bits. Some digital cameras can produce image files with a depth of 16 bits per color channel. Gimp cannot load such a file without under Script-Fu Type of Script in the image menu. We will not try to describe every script in depth. Most Script-Fus are very easy to understand and use. At the time of this writing, the following

a rectangular image. A drop shadow looks like a blurry shadow underneath an image. It helps add depth to a picture. You can see the before and after images below. Figure 2 First we need an image