image editor
Software that allows images to be edited and also converted to different graphics formats. Image editors typically deal with only bitmapped images such as GIFs, JPEGs and BMPs; however, some editors support both bitmaps and illustrations (see
vector graphics). Common functions are manually cropping and resizing the image and using "filters" to adjust brightness, contrast and colors. A myriad of filters are available for special effects (see
image filter). Red eye removal is included in editors specialized for photos (see
photo editor).
Layers Offer Essential Flexibility
A major difference between a basic image editor and a high-end editor such as Photoshop is the support of layers, which is mandatory in commercial design. Layers enable different parts of an image to be placed in separate, transparent "canvases" that can be moved over and under each other until the desired result is achieved (see
layers). See
paint program,
photo editor and
graphics.
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| Applying a Filter to an Image |
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| This Photoshop screen shot shows the "lens flare" filter being applied to the image on the left. The type of camera lens, amount of brightness and position of the light can be adjusted. |
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| Fixing Underexposed Images |
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| Available as a stand-alone program or Photoshop plug-in, PhotoFlair uses the patented Retinex algorithm, developed by Science and Technology Corporation and NASA, to correct underexposed photos without affecting the areas with good exposure. (Image courtesy of TruView Imaging Company, www.truview.com) |
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| Image Editing Program |
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| An image editing program that contains layers enables bitmap elements to be treated independently. They can be placed above or below each other temporarily until the desired result is achieved. |