![]() Just double-click the installation file and follow the instructions. The installation for Windows is rather easy. It is already included in the distributions of GIMP for GIMP on Mac OS X ( /). You can download UFRaw for Windows, Mac OS X, and Linux on the following website. Once you've installed UFRaw, it can be used in three different ways: first, as an independent program that can edit and save digital negatives second, and most interesting, when you open RAW images, UFRaw operates within GIMP and third, the program contains ufraw-batch, a function that can convert several RAW files simultaneously. It functions with its own dialog box before the image is passed on to GIMP for further editing. You can edit the color and brightness settings as well as the white balance with UFRaw. They enable you to develop digital negatives with 16-bit color depth rather than in the lower quality offered by GIMP (8 bits per channel). The Unidentified Flying Raw (UFRaw) by Udi Fuchs and the dcraw command-line program by Dave Coffin are plug-ins that are available for Windows, Linux, and Mac OS X. If you have Windows or Mac OS, you can develop photos in RAW format by using the software that came with your camera, or you can use one of the plug-ins for GIMP. RAW formats are sometimes referred to as digital negatives. Thus, working with digital RAW images is called developing and refers primarily to adjusting color and brightness values, just as it does in analog photography. For example, this means that you can edit underexposed photos with more efficient options than those currently offered by GIMP with only 8 bits per channel. RAW also permits you to adjust the color and brightness settings, using the RawPhoto or UFRaw plug-in (explained in a bit) with a color depth of 16 bits per color channel. RAW formats offer more than a means to optimally save your photos. ![]() Remember to save the finished image in a high-quality standard format, such as TIFF or PNG. If GIMP can read the RAW format your camera uses, the images will be available with a 24-bit color depth (8 bits per color channel). At the end of section 5.6, you will find a list of RAW formats GIMP can read. Unfortunately, GIMP does not work with all proprietary camera RAW formats, so you'll need to make sure it can read your camera's format. Since version 2.2.6, GIMP supports RAW formats, so you can directly open and edit RAW formats with the program. Saving images in their native camera or RAW format will also ensure that you'll get the best possible quality when you archive the originals. Taking photos as digital raw data will result in a higher-quality image after correction, particularly when compared to photos taken in the highest-quality JPEG format. If your digital camera uses a proprietary file or RAW file format to capture images, you should use it.
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