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1. An image being edited in GIMP can consist of many layers in a stack. The user manual suggests that 'A good way to visualize a GIMP image is as a stack of transparencies,' where in GIMP terminology, each transparency is a layer. Each layer in an image is made up of several channels.
2. A 16-bit integer grayscale image provides 65535 available tonal steps from 0 (black) to 65535 (white). A 32-bit integer grayscale image theoretically will provide tonal steps from 0 (black) to (white).
3. I am using GIMP 2.6 on Ubuntu 11.10 and wish to chage GIMP's Interface to black. How do I do that. Gimp interface to change to black. In the GIMP user manual.

Feb 18, 2014 GIMP user manual pdf. If you are on the budget, GIMP is the real solution for you. The abbreviation GIMP comes from GNU Image Manipulation Program. It is a pretty.

Converting complex black image on white background into 'path'?

This image is too small - that is were you are finding difficulties.

You have to enlarge it - I'd say 400% would do - convert it to RGB mode first (image->modes->rgb) ,then scale it up, enhance the contrast (I like doing this using the layers->colors->curves tool, applying an 's' shape. Brightness Contrast tool should work fine here too).

At this stage, you probably will want to retouch the picture with the pencil tool. It is so small that some details - on the windows and on the clock, are not separatable even doing a manual retouch - you willhave to redraw the clock dots and window frames, unless you hhvae a scaled upo version of this image.

Canon imageformula dr-c125 user manual. Them,. select by color, click on black, convert selection to path. Then, fine tune your path, trowing away undesired points - this will smooth the curvers.

It should work.

Regards,

JS ->

On Monday 14 February 2005 03:26, supraexpress@globaleyes.net wrote:

I am trying to convert the attached image into an SVG (vectorgraphics) image with no/transparent background. I know somethingabout layers, masks, and channels, but cannot find the correct setof operations to extract the black components of the base image andreconstruct them as one vector graphics image that can then beresized without 'pixellation' (blurring/loss of pixels) and savedas other image types.

My original thoughts were to extract the two major black featuresusing a mask. Fill in the outline where it is overlayed in theoriginal image so it would then be complete. This should then beeasy enough to convert into a 'path', or otherwise convert into avector graphics image by itself.

The remainder of the original image, the 'tower', would takeseveral steps to seperate ITS component sections, and then convertthem into a 'path', or seperate SVG.

Once all of the components have been seperated and converted, itshould be easy enough to combine them into one SVG, which can thenbe expanded or otherwise modified without any more problems,leaving it with a transparent background.

I have tried to go through the Gimp User Manual but can't seem tofind all of the necessary steps, or the proper order, to producethe desired, final SVG, and find myself getting somewhat lost.

Any suggestions to accomplish what I need will be most welcome.

Converting complex black image on white background into 'path'?

Hi,

supraexpress@globaleyes.net writes:

I am trying to convert the attached image into an SVG (vectorgraphics) image with no/transparent background.

try potrace, http://potrace.sourceforge.net/

Sven

The GIMP user interface is now available in two modes:

• multi-window mode,

• single window mode.

When you open GIMP for the first time, it opens in multi-window mode by default. You can enable single-window mode through Windows → >Single-Window Mode) in the image menu bar. After quitting GIMP with this option enabled, GIMP will start in single-window mode next time.

Figure 3.2. A screenshot illustrating the multi-window mode.

The screenshot above shows the most basic arrangement of GIMP windows that can be used effectively.

You can notice two panels, left and right, and an image window in middle. A second image is partially masked. The left panel collects Toolbox and Tool Options dialog together. The right panel collects layers, channels, paths, undo history dialogs together in a multi-tab dock, brushes, patterns and gradients dialogs together in another dock below. You can move these panels on screen. You can also mask them using the Tab key.

1. The Main Toolbox: Contains a set of icon buttons used to select tools. By default, it also contains the foreground and background colors. You can add brush, pattern, gradient and active image icons. Use Edit → Preferences → Toolbox to enable, or disable the extra items.

2. Tool options: Docked below the main Toolbox is a Tool Options dialog, showing options for the currently selected tool (in this case, the Move tool).

3. Image windows: Each image open in GIMP is displayed in a separate window. Many images can be open at the same time, limited by only the system resources. Before you can do anything useful in GIMP, you need to have at least one image window open. The image window holds the Menu of the main commands of GIMP (File, Edit, Select..), which you can also get by right-clicking on the window.

   An image can be bigger than the image window. In that case, GIMP displays the image in a reduced zoom level which allows to see the full image in the image window. If you turn to the 100% zoom level, scroll bars appear, allowing you to pan across the image.

4. The Layers, Channels, Paths, Undo History dock — note that the dialogs in the dock are tabs. The Layers tab is open : it shows the layer structure of the currently active image, and allows it to be manipulated in a variety of ways. It is possible to do a few very basic things without using the Layers dialog, but even moderately sophisticated GIMP users find it indispensable to have the Layers dialog available at all times.

5. Brushes/Patterns/Gradients: The docked dialog below the layer dialog shows the dialogs (tabs) for managing brushes, patterns and gradients.

Dialog and dock managing is described in Section 2.3, “Dialogs and Docking”.

Figure 3.3. A screenshot illustrating the single-window mode.

You find the same elements, with differences in their management:

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• Left and right panels are fixed; you can't move them. But you can decrease or increase their width by dragging the moving pointer that appears when the mouse pointer overflies the right border of the left pane. If you want to keep the left pane narrow, please use the slider at the bottom of the tool options to pan across the options display.

  If you reduce the width of a multi-tab dock, there may be not enough place for all tabs;then arrow-heads appear allowing you to scroll through tabs.

  As in multi-window mode, you can mask these panels using the Tab key.

• The image window occupies all space between both panels.

  When several images are open, a new bar appears above the image window, with a tab for every image. You can navigate between images by clicking on tabs or either using Ctrl+Page Up or Page Down or Alt+Number. “Number” is tab number; you must use the number keys of the upper line of your keyboard, not that of keypad (Alt-shift necessary for some national keyboards).

This is a minimal setup. There are over a dozen other types of dialogs used by GIMP for various purposes, but users typically open them when they need them and close them when they are done. Knowledgeable users generally keep the Toolbox (with Tool Options) and Layers dialog open at all times. The Toolbox is essential to many GIMP operations. The Tool Options section is actually a separate dialog, shown docked to the Main Toolbox in the screenshot. Knowledgeable users almost always have it set up this way: it is very difficult to use tools effectively without being able to see how their options are set. The Layers dialog comes into play when you work with an image with multiple layers: after you advance beyond the most basic stages of GIMP expertise, this means almost always. And of course it helps to display the images you're editing on the screen; if you close the image window before saving your work, GIMP will ask you whether you want to close the file.

The following sections walk you through the components of each of the windows shown in the screenshot, explaining what they are and how they work. Once you have read them, plus the section describing the basic structure of GIMP images, you should have learned enough to use GIMP for a wide variety of basic image manipulations. You can then look through the rest of the manual at your leisure (or just experiment) to learn the almost limitless number of more subtle and specialized things that are possible. Have fun!

Figure 3.4. Screenshot of the Toolbox

The Toolbox is the heart of GIMP. Here is a quick tour of what you will find there.

By default, only the Foreground-background icon is visible. You can add Brush-Pattern-Gradient icons and Active Image icon through Edit → Preferences → Toolbox: Tools configuration.

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1. Tool icons: These icons are buttons which activate tools for a wide variety of purposes: selecting parts of images, painting an image, transforming an image, etc. Section 1, “The Toolbox” gives an overview of how to work with tools, and each tool is described systematically in the Tools chapter.

2. Foreground/Background colors: The color areas here show you GIMP's current foreground and background colors, which come into play in many operations. Clicking on either one of them brings up a color selector dialog that allows you to change to a different color. Clicking on the double-headed arrow swaps the two colors, and clicking on the small symbol in the lower left corner resets them to black and white.

3. Brush/Pattern/Gradient: The symbols here show you GIMP's current selections for: the Paintbrush, used by all tools that allow you to paint on the image (“painting” includes operations like erasing and smudging, by the way); for the Pattern, which is used in filling selected areas of an image; and for the Gradient, which comes into play whenever an operation requires a smoothly varying range of colors. Clicking on any of these symbols brings up a dialog window that allows you to change it.

4. Active Image: In GIMP, you can work with many images at once, but at any given moment, only one image is the “active image”. Here you find a small iconic representation of the active image. Click the icon to display a dialog with a list of the currently open images, click an image in the dialog to make it active. Usually, you click an image window in multi-window mode, or an image tab in single-window mode, to make it the active image.

   You can “Drop to an XDS file manager to save the image”. XDS is an acronym for “X Direct Save Protocol”: an additional feature for the X Window System graphical user interface for Unix-like operating systems.

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