Sepia tone

For toning photographs non-digitally, see Photographic print toning

Sepia tone is a type of digital photo in which the picture appears similar to a traditional black-and-white print toned with sepia. It appears in shades of brown, as opposed to grayscale.

Digital sepia tones

Sepia can be produced in many digital cameras and camcorders, or it can be produced in the digital darkroom.

Many photographers prefer to use software, like Photoshop or The GIMP, because these offer more control over how much tint to apply the image, and exactly what hue. There is no single color known as "sepia" - the term covers a range of yellow and brown mixtures.

More sophisticated software tends to implement sepia tones using the duotone feature. Simpler photo-editing software usually has an option to sepia tone an image in one step.

• Adobe recommends setting Hue = 27 and Saturation = 21 and checking the Colorize box in the Hue/Saturation filter in Photoshop^[1]
• Microsoft recommends: (a slight modification required)^[2]

R' = (R × 0.393 + G × 0.769 + B × 0.189) / 1.351f;
G' = (R × 0.349 + G × 0.686 + B × 0.168) / 1.203f;
B' = (R × 0.272 + G × 0.534 + B × 0.131) / 2.140f;

The sample photographs below show the process of removing color from a photograph, then applying a conversion to grayscale. The last sample photograph shows the same colored photograph converted to sepia.

Color image

Grayscale image

Sepia-toned image

See also

• Sepia (color)
• Monochrome
• Selective color
• Cyanotype
• Photographic print toning

References

1. ^ How To: Create sepia toned images. Retrieved on 2007-03-17.
2. ^ .NET Matters, Sepia Tone. Retrieved on 2007-03-17.

Wikipedia information about Sepia tone This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Sepia tone". It may not have been reviewed by professional editors (see full disclaimer). Help contribute to Americola and edit this article.