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 highlights . . . . 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 the selected parts from the unselected parts (the so-called ‘marching ants’ ). Actually this is a bit misleading: selection in GIMP is really graded, not all-or-nothing, and really the selection is represented

as highlighted in the figure on the right. Exactly which commands are shown in the menu varies a bit from dialog to dialog, but they always include operations for creating new tabs, or closing or detaching 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

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 Space

selection. The program supports a full host of channel operations and many types of displays from 8 bit to 24 bit. Newer beta versions of the program support layers, transparency, and scripts to automatically 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

it needs to be flipped horizontally. Fix Horizon Lines Is your image a bit crooked? You can tilt it a bit so it looks level to the ground. 1. Click on the Rotate Tool button

your Operating System! Open – Install and follow instructions. (Do not Panic… yes it can be a bit slow!!!) Gimp Interface • SINGLE WINDOW MODE To work in a single window Windows – Single we wanted an image to be printed we had to set it to 300 px Colour: RGB Precision: 32-Bit integer Fill with: Background Colour (your own choice)  ACCESSING TOOLS The difference