By Akkana Peck
With four–color portraits and screenshots all through, you’ll how to arrange digicam photographs for reveal on internet pages—including approaches like rescaling, cropping, and balancing colour. using layers, paths, and mask also are lined in broad element. in fact, additionally, you will the right way to draw strains and shapes make the most of styles and gradients or even create your personal brushes, styles, and gradients. GIMP specialist and writer Akkana Peck teaches you ways to the touch up electronic pictures, smudging away blemishes, solving red–eye, and sewing panoramic photos. You’ll faucet into the strong filters, results, and plug–ins which are on hand for GIMP and automate projects utilizing scripts. the total publication is approached in a project–based demeanour, and as you move, a variety of tasks can assist boost your newly obtained talents. What you’ll research set up GIMP on home windows, Linux, and Mac OS X. discover the interface and configuration innovations. arrange your digital camera photos to be used on the internet, together with rescaling, cropping, and balancing colour. study easy recommendations akin to drawing traces and shapes, using styles, and using gradients. grasp complicated concepts equivalent to layers, paths, and mask. Create your personal brushes, styles, and gradients. observe tips for solving blemishes, removal redeye, and sewing jointly panoramic photos.
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Extra info for Beginning GIMP - From Novice to Pro
If you put images this big on the web, or send them via email, the recipients will not thank you. The solution is to scale the images: make them smaller. Don’t confuse this with changing the canvas size: in GIMP, that only changes the size of the work area without changing the contents. To take the image contents and blow them up or shrink them down, Scale is what you want. The Scale Image dialog (Figure 2-2) is accessed from the Image menu in the image window: Image ➤ Scale Image. Figure 2-2. The Scale Image dialog The dialog has three sections.
GIF can represent up to 256 colors (256 is 2 to the 8th power, so this is also called 8-bit color). Typical photographs have many more colors than that (typically tens or hundreds of thousands), so saving a photograph in GIF format will usually result in very poor quality. Even worse, with 256 colors, the file will usually be larger than a full-color JPEG version of the same image! The lesson is clear: don’t use GIF for photographs; use it only for simple icons and logos. So what is GIF good for?
The only way to learn GIMP is to edit images, so let’s get started! Begin with any photo you like. I’ll start with a vacation photo: some Anasazi ruins from Chaco Canyon in New Mexico. You can use an image you already have in a file on your hard disk, and use GIMP’s File ➤ Open… dialog to open it. But you may want to choose an image you’re keeping on a website. GIMP makes it especially easy to open images that are on the web: with most browsers, you can drag from the image in the browser window and drop it onto GIMP’s Toolbox window.