Measuring Color

Three main classes of instruments exist to measure color:

A spectrophotometer measures reflectance or transmittance at various wavelengths. These data can be used to calculate colorimetric information such as XYZ, CIELAB values, densitometry, or the concentration of ink, etc.

A Colorimeter directly provides the resulting XYZ or CIELAB values without the specific spectral detail.

A Densitometer provides information on ink concentrations, a measurment that can be critical for verifying correct printing.

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What are these devices: densitometer, spectrophotometer, and colorimeter? (334)
A spectrophotometer is the most fundamental of the three instruments you mentioned. Spectrophotometers measure reflectance or transmittance as a function of wavelength. From those data, one can compute other quantities such as colorimetry (XYZ, CIELAB, etc.) or densitometry (Status A, Status M, etc.). A colorimeter directly measures colorimetric quantities through filtration of the sensors. Thus a colorimeter directly reports XYZ or CIELAB values, but spectral data are not available for additional computations. Likewise, a densitometer reports integrated values, called densities. There are various standards for densitometers, but they are not designed to measure color. By that I mean reported densities are normally not intended to correlate with human color perception, but rather to act as measurements of the quantities of dye or ink present. (Of course, with added knowledge about the system it is sometimes possible to convert densities into colorimetric quantities.) Again, densitometers do not provide spectral data that could be used for further computations.

TODO TODO TODO TODO - delete this stuff

  "toaff" Code for affiliate links. Put this in for all affiliate links in case we need to find them.

YellowHighlighting    (Must put an "x" in yellowhighlighting of cssoptions in IncColors to enable.)

Underline    Strong    em    xxlg    xlg    lg    sm    xs

Text  Link. 

Alternative - Open New Window - link that is a different way to have it open a new window

Simple - These are smaller/simpler

Simple - These are smaller/simpler

Random - These are smaller/simpler

Random - These are smaller/simpler. They are controlled by just the align="center/left or right"

Specific - Caption.

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Specific - Caption.

Specific, Caption and Link

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Specific, Caption and Link

Random, Caption

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Random, LINK , Caption

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Random, RANDOM LINK , Caption

Cells are sized by the largest cell in a column. To make the cells larger, put nbsp in them. But make every other one a regular space (use a space in the text) becuase it takes less code and allows a carriage return to be inserted if someone's screen is small. Otherwise, they will have to scroll back and forth.

If no table border (tb1, ex.) is defined, the default is tb0, or no border around the cells.

Text Centered Table

Text Left Justified Table

l

Left

To have a different background color, go to cssoptions in IncColors and put an X in colorsbg to enable this feature. Define the class for the bg color.

To have no borders:

• Do not define a border (ex., tb1). The default is no border.
• Define style="background:#xxxxxx" where xxxxxx = the color code of the bg color.

HIDDEN COMMENT IN TEXT:

HIDDEN UNIQUE TEXT MARKER:

The first essential to the application of the Munsell Color System is a clear understanding of the three dimensions of color. Once the simple logic of these dimensions is grasped, the practical advantages of the Munsell System will be apparent.

Example of linking to a Named Anchor:

www.SiteName/PageName/index.php#ManMadeDiamonds

To Redirect a File:

Open an existing php file using NoteTab. Delete everything and replace it with the following code. Save with NoteTab, making sure it is still a php file.

function redirect($to)
{
$pc = $_SERVER['SERVER_PORT'] == '443' ? 'https' : 'http';
// $host = strlen($_SERVER['HTTP_HOST'])?$_SERVER['HTTP_HOST']:$_SERVER['SERVER_NAME'];
if (headers_sent()) return false;
else
{
// header("HTTP/1.1 302 Found"); HIGHLY SUGGESSTED YOU DONT USE THIS !!!!!!!!
// header("HTTP/1.1 303 See Other");
header("HTTP/1.1 301 Moved Permanently");
header("Location: $pc://$to");
exit();
}
}
?>

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