The Value Of Brightness/Contrast
How a much maligned adjustment tool can help you work images like a darkroom master
By Rob Sheppard ...
Tone values
Is various shades of gray between the extremes of black & white in a photographic image.
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Light Value (LV) and Exposure Value (EV) are numerical scales for measuring the amount of light, and the exposure, respectively.
Value used to describe the maximum density in an image.
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Exposure value refers to the amount of light for a given exposure. It is denoted as a single number. Its value is subsequently used to calculate the correct combination of shutter speed and aperture at a given ISO speed of the sensor.
Exposure Value (EV) represents a ratio of all possible combinations of film speed and aperture settings that can render any given exposure.
The 11 Best Value Caribbean Hotels (Photos)
The Caribbean isn't all about five-star resorts. Often, you may want to save a bit of your vacation cash to eat in elegant restaurants or to shop for the perfect gift.
Subtract the initial reference values from the averaged, processed control-strip density values. When a control parameter of high density minus low density is specified for the process, determine that also.
[Expired] Competition: We have 10 Design Cocktail III Bundles (value of $904) up for grabs
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TIPS FOR PHOTO ARCHIVING & STORAGE
Options for saving & backing up your valued photographs
By Heather L. Jones
April 2010 ...
Value of taking images now:
In the intervening years, millions of images have been taken! ...
Value added tax
It's your country's VAT (Umsatzsteuer, Moms etc.) on the declared value.
value
the relative lightness or darkness of a color measured against a neutral gray scale (ranges from 0 for pure black to 10 for pure white).
value scale
a complete range of values from black to white.
Value, Not Hue
It is very important to keep in mind that you are using black and white film. A scene may seem very interesting, but if the composition relies on color contrasts, often times when it is rendered in grays, it falls flat.
Values / Actions
Protect
Enter protect mode, here you can browse through images and press the SET button to protect / unprotect each image.
Value: lightness and darkness of the color - the amount of white or black added.
Intensity: the purity or saturation of the color
Monochromatic color: use of one color where only the value of the color changes ...
Value - Describes how light or dark a color is. Value can be used interchangeably with the term brightness. A pale yellow color will seem lighter than dark blue.
Value judgment
Aboriginal hollow log tombs. National Gallery, Canberra, Australia.
Value
A measure from white to black, the higher the value, the darker the image.
Vanishing point
Is the point at which parallel lines, viewed obliquely, appear to converge in the distance.
Value
Value
This term often refers to the light intensity, the luminosity of a color. It varies from 0 (black) to 100 (full light).
The Value of Assisting
So where does anyone get that kind of expertise?
Gray Value: The number (usually between 0 and 256) that specifies a particular shade of gray.
Gripper Margin: The unprintable blank edge on which the paper is gripped as it passes through a printing press. Usually measures a half inch or less.
Flash Value (FV) Lock A function of the Nikon Creative Lighting System, Flash Value (FV) lock maintains the same flash exposure for your main subject when you're shooting a sequence of photos. Find out more.
Color value size
The color value size indicates the differences between the lightest and darkest parts which are shown on the picture ...
index values
Pairs of numbers arranged in a table so that an application can match numbers it knows about to numbers representing colors that an output device knows about.
indexed-color image ...
-Tone values - various shades of gray between the extremes of black & white in a photographic image.
-Toning - method of soaking the print in selenium or similar chemical(s) to help give the print an overall feeling of "richness".
Shadow Values, Highlight Values, and Midtone Contrast: Automatic
All of the methods used so far have been manual. The following method is an auto routine.
newton value
unit of measure, used in screen mesh tensioning, generally expressed in Newtons per centimeter.
-Light value - alternative term for exposure value (EV).
-Limiting aperture - actual size of the aperture formed by the iris diaphragm at any setting.
Colour value
A mathematically calculated value of a pixel's colour based on its colour components.
Value for refraction of a material
Refraction
The bending of rays of light as they pass from one medium into another, e.g. from air to water, or from air to glass.
The values produced by a monitor from black to white are nonlinear. If you graph the values, they form a curve, not a straight line. Gamma defines the slope of that curve at halfway between black and white.
The value of the f-stop has an important effect on the depth of field of an image. A larger f-stop (smaller aperture) will produce a greater depth of field.
The value you choose for your shutter speed determines the length of time in which the shutter curtain is open.
The value of a pixel in an electronic image, representing its lightness value from black to white. Usually defined as brightness levels ranging in value from 0 (black) to 255 (white).
Buffer ...
The value here is in hexadecimal so this is actually 150 pixels (decimal). Regedit.exe lets you enter values in decimal so you don't have to get out a calculator. Legal values are between 32 and 256 decimal.
The value of saturation + hue of a pixel; its colour.
Chromatic Aberration
In digital imaging most often seen as unwanted purplish lines along edges separating dark and light areas.
The value for the index of refraction of several materials is given below:
Material
Refractive Index
Diamond ...
Great ValueThis is still the only L lens I own. It is the cheapest L glass you can buy and you should buy it.
F-stop values are traditionally incremented by stops. Each stop is a standard value that allows half as much light through as the previous stop and twice as much light as the next stop.
*) ISO value: "Normal" film is 100 or 200 ISO. If you go to a store and buy some 800 film, the film will be more sensitive to light, and you will in many situations get away with not having to use a flash
**) Switching to a faster lens on a compact ...
The Cyan value will increase, but the Yellow and Magenta values also will increase a bit because subtracting Red will make the area brighter. The ratio of Magenta to Yellow also will change a bit because there's more Magenta in Red than Yellow.
Exposure value. Method of quantifying scene brightness. Most of these value apply to metering cells, how high or low eg.
Exposure value when spot - metering circle is moved.
Exposure value set by user, with value set by selected metering method as 0.
When the value of a datum is greater or smaller than the maximum or minimum that can be represented by the format in which it’s stored, we say it’s been clipped. For example, each colour of a pixel may have a value of from 0 to 255.
A small f/value (e.g. f/2.8) indicates a large aperture.
A large f/value (e.g. f/8) indicates a small aperture.
So, f/2.8 is a larger aperture than f/8.
Exposure Value
An arbitrary method of incremental measurement that can be adjusted on some digital cameras for more precise exposure control.
Aperture value (Av). AE camera metering mode by which you choose aperture, and the metering system sets shutter speed (also called aperture priority).
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EXPOSURE VALUE - The Exposure Value (EV) system, which originated in Germany in the 1950s, was created to be a simple-to-use substitute for the shutter speed/aperture combination, using a single number instead of two.
Exposure value (EV).
The sensitivity of camera gear at autofocussing or determining correct exposure metering is rated in terms of EV - exposure value - for a given lens type and film speed/ISO.
Below these values is a box on the left which groups together Hyperfocal distance (HFD), Depth of Field (DOF), the Near Point in Focus and the Far Point in Focus. These values are grouped together because they are subjective quantities, i.e.
Reflectance Value is the relative value of an object's surface reflecting level. The higher the number, the greater the ability of an object's surface to directly reflect light.
Reflected Light ...
Film Camera Values
For about the last year and a half, I've been buying 35mm Nikons that I could formerly only lust after. I cut my teeth on a Nikkormat FT back in the middle '60's, so fully manual shooting doesn't bother me a bit.
Sampled RGB values of the white door from the same spot and demonstrate the differences:
Incandescent WB: 245, 247, 242
Auto WB: 248, 246, 232
Cloudy WB: 250, 244, 208 ...
I very much value Amy's magazine and the education she provides. Even though I have a bit of knowledge of digital photography but I have found that I always learn new things and Amy has helped me to stay sharp.
By using the values from the color matching diagram it is possible to plot into three-dimensional space the position of all the colors in the spectrum, having the amount of red (R), green (G) and blue (B) on the three axes respectively.
Alongside the value-for-money appeal, another alluring quality of these solidly built ‘classic’ lenses over their modern counterparts is the optical quality, which ensures these lenses deliver extremely sharp, crisp results.
Examples of Value Dominance
In the examples below, the overall value of each composition changes with the incorporated hues' relative saturation.
EV, Exposure Value
A system of light measurement in which each whole number is 1 Stop more or less than its neighbors; used by many meter makers.
 See also: Image, Light, Photograph, Camera, Digital
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