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Digital photographs, images and other graphics can all be altered using computer software. A variety of software packages are available that allow you to edit and manipulate your images.

• cropping the image
• removing errors and minor blemishes like dust spots
• lightening underexposed areas
• darkening washed out areas

It is also possible to make more significant changes to an image. This can be used for artistic or experimental effect.

For example, you might:

• change the contrast
• increase or decrease colour
• saturation
• add blurring
• mix areas of black and white and colour