Whitening

Whitening may refer to:

• Hypopigmentation, the loss of skin color
• Pallor, a reduced amount of oxyhemoglobin in skin or mucous membrane
• Whitening transform, transforming a signal source to make it appear closer to white noise.
• Key whitening, a technique, in cryptography, for improving the security of a block cipher
• The process of making something whiter
• Part of the leather crusting process
• Tooth bleaching