Understanding Basic Image Parameters in Digital Photography

In this photography online course we will bea color photograph and then convert it into
understanding some more image parameters andgrayscale on computer. You can increase contrast
improving digital camera image quality.to improve detailing in grayscale images.
Hue: Some dSLR cameras have hue option, whichSepia: In olden photographs, a chemical was used
shifts all colors by a certain degree. You can doto make the photographs last longer. This
this using an image editing software also. Thisgenerates the sepia tone in photographs. Modern
feature can be used for dreamlike digitaldigital cameras and dSLRs have this feature
photography to match with the tone of thereadymade in them.
event.Saturation: Saturation is the intensity of a
Contrast: Contrast increases the glowing elementparticular color. An image with color saturation as
of a color in terms of its brightness. A highzero is a gray-scale image. Some digital cameras
contrast in an image makes the subject in focushave a high contrast setting that increases the
to stand out against a background or it brings intosaturation of all colors in an image. This attribute
focus a wide array of subjects such as photo ofcan be used in Photoshop also. Some image
a bazaar. The better the contrast, better are theviewers also allow this option.
details brought out.This feature is handy in the still images of flowers
Sharpness: It is also called as acutance. It is aand fruits. It depicts the natural color of the
measure of the sharpness with which a film cansubject better. If you reduce the saturation of an
imitate the edge of an object. A greaterobject digitally; it gives a rustic effect to the
sharpness gives a grainier image while a reducedphotograph. The rustic effect is particularly useful
sharpness gives a washed out appearance. Sharpwhen you are photographing bus, train or truck.
images are appealing in close-ups whereas it looksYou could also reduce the saturation and increase
odd in portraits.contrast to give a grunge touch to the picture
Tone: The tone in an image sets the mood of theimage. This is useful for portraits or the pictures
image. The tone could be warm or cool. A warmof pets.
tone tends to be more redder with predominantYou can also use some filters along with digital
colors red, yellow and orange. A cool tone tendscamera lenses. These increase the saturation of a
to be bluer with soft and mellow colors. Warmparticular color. For SLR and dSLR camera,
tone is considered masculine where as cool tone isoffered filters are green, red and blue. Some
considered as feminine.digital cameras such as Nikon Coolpix P50 and
Black and white: This is a standard feature inCanon Power shot SD850 IS offer saturation
digital cameras and dSLR cameras. This colorcontrols for these colors as well as custom color
scheme does have a charm attached to it but itoptions.
is often overused. It is always a best idea to take