Modifying an image
When you insert a new image, you may need to modify it to make it more suitable for fitting into the document. The placement of the picture relative to the text is discussed in Positioning graphics within the text. This section describes the use of the Picture toolbar, resizing, and cropping, as well as a workaround to rotate a picture.
Writer provides many tools for working with images. These tools are sufficient for most people’s everyday requirements. However, for professional results it is generally better to use an image manipulation program such as GIMP to modify images (for example, to crop, resize, rotate, and change color values) and then insert the result into OOo. GIMP is an open-source graphics program that can be downloaded from http://www.gimp.org/downloads/.
Using the picture toolbar
When you insert an image or select one already present in the document, the Picture toolbar appears. You can set it to always be present (View > Toolbars > Picture). Picture control buttons from the Picture toolbar can also be added to the Standard Toolbar. See Customizing Writer for more information.
This toolbar can be either floating or docked. The figure below shows what the Picture toolbar looks like when it is floating. Two other toolbars can be opened from this one: the Graphic Filter toolbar, which can be torn off and placed elsewhere on the window, and the Color toolbar, which opens as a separate floating toolbar. From these three toolbars, you can apply small corrections to the graphic or obtain special effects.
Flip Vertically or Horizontally
1 From File | 2 Filter | 3 Graphics mode | 4 Color | 5 Transparency | 6 Flip Horizontally | 7 Flip Vertically | 8 Graphics Properties | 9 Invert | 10 Smooth | 11 Solarization | 12 Aging | 13 Charcoal Sketch | 14 Relief | 15 Mosaic | 16 Posterize | 17 Pop Art | 18 Sharpen | 19 Remove Noise | 20 Red | 21 Green | 22 Blue | 23 Brightness | 24 Contrast | 25 Gamma
(Above) Picture toolbar plus tear-off Graphic Filter toolbar and floating Color toolbar. Graphics mode (3) can be Default, Grayscale, Black/White, or Watermark.
Use this toolbar to modify the individual RGB color components of the image (red, green, blue) as well as the brightness, contrast, and gamma of the image. If the result is not satisfactory, you can press Control+Z to restore the default values.
Table 1 provides a short description of the available filters, however the best way to understand them is to see them in action. Feel free to experiment with the different filters and filters settings. remembering that you can undo all the changes by pressing Ctrl+Z or Alt+Backspace or by selecting Edit > Undo.
The figure below shows examples of some of the changes available on the Picture toolbar.
|Original Image||Flipped Vertically||Flipped Horizontally||Light 50%|
|Contrast 50%||Red 50%||Green 50%||Blue 50%|
Some graphic effects available from the Picture toolbar.
Table 1: Graphic filters and their effects
Modify the percentage value in the Transparency box on the Picture toolbar to make the image more transparent. This is particularly useful when creating a watermark or when wrapping the image in the background.
Using the formatting toolbar and picture dialog
When an image is selected, you can customize some aspects of its appearance using the tools available on the Formatting toolbar as well as in the dialog that is shown by right-clicking on the image and selecting Picture. You can, for example, create a border around the image, selecting style and color; or you can (in the Borders page of the Picture dialog) add a shadow to the image.
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