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Mike Angelo's Digital Darkroom

How to Use GIMP for Photo and Image Editing #3:

Framing Photos and Images

GIMP is a free digital-photograph and digital-image editing program for the Linux, Mac, Unix, and Windows platforms

Use GIMP rather than Photoshop and save money

Mike Angelo -- 25 February 2004 (C) -- Page 1


Article Index
About the Digital Darkroom:

In the time before digital computers could do graphics, photography was a film thing. Because light hitting undeveloped film or photo-print paper will expose it, undeveloped film and print papers have to be handled in a room without light a dark room. (A red light at the very reddest end of the visible light spectrum is used to provide some illumination in a photo darkroom.)

Exposed film and print papers are developed in chemical baths in the darkroom. Machines in the darkroom called enlargers are used to blow up or reduce the size (scaling) of photos for printing and to crop them for printing.

Optical filters can be used with the enlargers to modify the appearance of photographs. Darkroom tricks can be used to superimpose part or all of one photo upon another for printing. Text or artwork can be superimposed upon a photograph too.

As sufficient computer resources were developed and deployed to enable digital image manipulation and editing, software was developed to do just that. Thus, today everything from snapping photos digitally, to editing photos, to printing photos can be done digitally digital cameras for snapping the photographs, digital computers and software for editing the photos, and digital (computer) printers for making photo prints.

In addition to the classic darkened room, today there also is a computerized, virtual darkroom, the digital darkroom. In essence, the digital darkroom is the computer, accessories, and software used (a) to download photographs from a digital camera or scan film or print photographs into a computer, (b) process, manipulate, and edit the photographs, and (C) print the processed photographs.

In today's hands-on tutorial, you will learn how to apply The GIMP's powerful layer and pattern tools to put a frame or border around a digital photo or digital image by editing a photograph in our digital darkroom. It's a simple application of what you already have learned in our Gimp tutorial series about using the Gimp's layer and pattern tools.

In Part 1 of this tutorial series, we covered some of the most basic elements of photo editing, cropping and scaling (resizing) photos, along with adjusting the brightness and contrast of photos. Then, in Part 2 you learned how to use the GIMP's powerful layer, pattern, and text tools by editing a photograph in our digital darkroom. If you do not know how to use the Gimp to crop and scale photos, adjust brightness and contrast, add text or a pattern to a photo, or create and work with layers, then you should go through the Part 1 and Part 2 tutorials.

You later can apply the basic skills, elements, and principles that you learn in this tutorial to edit and manipulate photos, clipart, scanned images and other digital graphics. You also can use the GIMP to design and create all sorts of stunning computer graphics and images from scratch. However, today's tutorial focuses on editing an already existing image with the GIMP.

Originally, GIMP was a Linux/UNIX program. However, it has been ported to the Microsoft Windows platform -- that effectively makes GIMP a cross-platform (XP) program. There appear to be some Mac versions of the GIMP now also.

If you already have read Part 1 and Part 2 of this tutorial series and our GIMP Overview article, you might want to skip right on down the to the Into the Digital Darkroom section of today's tutorial. It's on page 2.

The GIMP and Adobe Photoshop are comparable, digital-darkroom, software products as to features, functions, and usability other than some advanced professional and prepress stuff in Photoshop. The basic photograph and image cropping, scaling, color-brightness adjustment, color-contrast adjustment, text, and layer operations covered in Parts 1 and 2 of this tutorial series, plus today's tutorial, are just as easily-done and well-done with the GIMP as with Photoshop.

Moreover, GIMP is free and Photoshop costs $699. Because GIMP is an excellent, pixel-based, image manipulation and editing program and because of licensing and pricing issues, we chose to use the GIMP rather than Photoshop in our digital darkroom. More about the GIMP and Photoshop further on in this article.

For more information about The GIMP, please see our article Overview of The GIMP - a free photograph and digital-image editing program. Also, to get up to speed with today's tutorial please see the first part of our GIMP tutorial series, How to Use GIMP for Photo and Image Editing. It shows you GIMP desktop basics and how to crop and scale (resize) photos, along with how to adjust the brightness and contrast of photos and images. Also, please see the second part of our series, Introduction to Layers.

Overview of Today's GIMP Tutorial

In today's tutorial, let's use the GIMP's powerful layer and pattern tools to frame one of the photos we took as part of our review of Microtek's S1 digital camera. The Microtek S1 is a very nice 2.1 MegaPixel camera that is compatible with the GNU-Linux operating system, although Microtek lists it as only a Mac and Microsoft Windows compatible camera. More about that in our upcoming review of the Microtek S1.

The purpose of today's tutorial is:

(a) to introduce people that never have used an image or photo-editing program to image-editing and photo-editing software basics -- particularly layer tools,

(b) to introduce people that never have used the GIMP, to GIMP basics,

(c) to show people how to apply the Gimp's powerful layer and pattern tools to frame a photo or digital image,

(d) and to help Adobe Photoshop and Photoshop Elements users migrate to the GIMP.

Thus the focus of today's how-to article is on applying GIMP's layer and pattern tools. You will learn how to use these tools by editing a digital photograph.

If you have a digital camera, the GIMP is an important tool that you should have in your digital darkroom. The GIMP is included with many prominent GNU-Linux distributions. If you have a major GNU-Linux distribution such as Mandrake or SUSE, you likely already have the GIMP.

If you are an MS Windows user you might not already have the GIMP installed. The good news is that whichever of the above listed OSs you use; you can download and install the GIMP at no charge to you. Download links are in the Resources section at the end of this tutorial on page 4.

Figure 1, below, shows the GIMP version 1.3 opened in SUSE Linux Professional 9.0 and the KDE desktop. The barn picture to be framed is in the upper right of the screen shot.

All the figures in today's tutorial were made with the GIMP version 1.3 opened in SUSE Linux Professional 9.0 and the KDE desktop. Screen shots were made using the GIMP's screen shot feature.

Figure 1. Screen shot of GIMP version 1.3 running on SUSE Linux 9.0 and the KDE desktop for Linux. To prepare the photo for today's lesson, the crop tool was used to cut a 2048-pixels by 1536-pixels photograph down to a 1300-pixels by 856-pixels photo. Then, the scale tool was used to re-size the photo to 570-pixels by 375-pixels. Please see text for an explanation. (Country Barn photo by Mike Angelo)


Preview of GIMP 2.0

The next major GIMP release will be GIMP 2.0. The current end-user version is GIMP 1.2.5. In between those two versions is GIMP 1.3.x, the pre-2.0 developers' version.

Since this tutorial is based upon GIMP 1.3, it should also be applicable to GIMP 2.0 when it is released. Because GIMP 1.3 is the development version for GIMP 2.0, today's GIMP tutorial and Parts 1 and 2 of this tutorial series are in effect previews of GIMP 2.0.

The tools used in today's tutorial also are in GIMP 1.2.x. Thus, this tutorial also is applicable to GIMP 1.2.x.

The Hands-On GIMP Tutorial

Getting Started

There is no one, single, way to go about taking pictures or editing them. There are different tools that you can use, even within one photo-editing program. Moreover, there are different ways to use those tools. The way this tutorial shows you how to do your digital-darkroom work is just one of many approaches.

This tutorial shows you the mechanics of basic photograph and image editing with the GIMP's powerful layer and pattern tools. Unfortunately, photograph and image artistry is beyond the scope of today's tutorial. However, it is much more the photo artistry than the editing mechanics that makes great photos and graphics. Nevertheless, even the digital-photo artist needs first to learn the how to use the digital-photo editing tools.

Some of the instructions in today's tutorial direct you to the Menu Bar on the canvass window. However, the pre-1.3 versions of the GIMP do not have a Menu Bar on the canvass window

If you do not have a Menu Bar on the canvass window, alternate click (right-click if you are using a right-handed mouse) anywhere on the canvass. That pops up a menu that has the same menu options, as does the Menu Bar on the canvass window.


  • See Into the Digital Darkroom on Page 2 ----->
  • See Add a pattern layer on Page 2 ----->
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