Color Palette From Image Pro 2 0 1 Putter White

1. Color Palette From Image Pro 2 0 1 Putter White Gold
2. Color Palette From Image Pro 2 0 1 Putter White Black
3. Color Palette From Image Pro 2 0 1 Putter White And Blue

All marks have a default color, even when there are no fields on Color on the Marks card. For most marks, blue is the default color; for text, black is the default color. Also see Assign colors to marks and Example – Multiple Fields on Color.

Line art vs 2-color indexed color: Line art images (sometimes called Bitmap) are only 2 colors (assumed black ink on white paper) but they are NOT the same thing as 2 color indexed color. Line art pixel data is a literal 1 or 0 bit, meaning true or false, implying the pixel will print ink or not, and there is no palette. An image palette is a collection of colors that an image uses — similar to a painter's palette. An image palette is a subset of all the colors your monitor can display. Not all images have image palettes — only images with color depths between 16 and 256 colors have palettes that you can fine-tune and edit. 2 colors, often black and white (or whatever color the CRT phosphor was) direct color. Sometimes 1 meant black and 0 meant white, the inverse of modern standards. Most of the first graphics displays were of this type, the X window system was developed for such displays, and this was assumed for a 3M computer.The first Macintoshes, Atari ST high resolution. With Canva's color palette generator, you can create color combinations in seconds. Simply upload a photo, and we'll use the hues in the photo to create your palette. Upload an image Try demo image. 'Guys that are color blind often choose options 1 and 2, the black and white palettes, on their Lowrance HDS units,' said Chris Meyer, Dealer Trainer and Field Tester for Lowrance. 'I prefer 6 and 9 on the Gen 2 Units and palette 7 on the new Touch units. But that's the beauty of it.

Categorical Palettes

When you drop a field with discrete values (typically a dimension) on Color on the Marks card, Tableau uses a categorical palette and assigns a color to each value of the field. Categorical palettes contain distinct colors that are appropriate for fields with values that have no inherent order, such as departments or shipping methods.

To change colors for values of a field, click in the upper-right corner of the color legend. In Tableau Desktop, select Edit Colors from the context menu. In Tableau Server or Tableau Online, the Edit Colors dialog opens automatically.

Change the color for a value

1. Click on an item on the left, under Select Data Item.

2. Click a new color in the palette on the right. In Tableau Desktop you can hover over a swatch to identify the color.

3. Repeat for as many values that you want to change.

4. In Tableau Desktop, click OK to exit the Edit Colors dialog box. In Tableau Server or Tableau Online, simply close the dialog box.

Select a different palette

The Select Color Palette drop-down list in the Edit Colors dialog box provides color palettes that you can use for discrete fields. The list contains both categorical and ordinal palettes.

At the top of the list are categorical palettes, such as Tableau 10. As noted above, categorical palettes are appropriate for discrete fields with no inherent order.

At the bottom of the list are ordinal palettes such as Orange. Ordinal palettes contain a range of related colors and are appropriate for fields that have an associated order, such as dates or numbers.

After you select a palette, click Assign Palette to automatically assign the new palette colors to the members in the field.

To return to the Automatic palette and the default color assignments, click Reset in the Edit Colors dialog box.

Quantitative Palettes

When you drop a field with continuous values on the Marks card (typically a measure), Tableau displays a quantitative legend with a continuous range of colors.

You can change the colors used in the range, the distribution of color, and other properties. To edit colors, click in the upper right of the color legend. In Tableau Desktop, select Edit Colors from the context menu. In Tableau Server or Tableau Online, the Edit Colors dialog opens automatically.

When there are both negative and positive values for the field, the default range of values will use two color ranges and the Edit Colors dialog box for the field has a square color box on either end of the range. This is known as a diverging palette.

Edit Colors dialog box for a diverging palette

When all values are either positive or negative, the default range of values will use a single color range and the Edit Colors dialog box for the field has a square color box only at the right end of the range. This is known as a sequential palette.

Edit Colors dialog box for a sequential palette

You can specify whether Tableau uses a diverging or a sequential palette for a continuous field on Color, and also configure the range of colors for the field's values.

The Palette drop-down list provides a range of color palettes from which you can choose. There are two types of quantitative palettes available for continuous fields:

• All palettes with Diverging in the name are diverging quantitative palettes—for example, Orange-Blue Diverging. You can choose a diverging palette for any continuous field—it isn't necessary for the range of values to contain both positive and negative numbers.

  To change the colors for a diverging palette, click one of the square color boxes at either end of the palette spectrum. Depending on whether you are authoring in Tableau Desktop or on the web, do one of the following:

  • In Tableau Desktop, in the color configuration dialog box (which is part of your computer's operating system), select a color from the color picker or enter custom values.

  • In Tableau Server or Tableau Online, enter a custom Hex value in the Custom Color field. If the value isn't valid, no changes are made.

• All other palettes are sequential quantitative palettes. To change the colors for a sequential palette, click the square color box at the right end of the palette spectrum to either open the color configuration dialog box (Tableau Desktop), or enter a custom Hex value in the Custom Color field (Tableau Server or Tableau Online).

Options for quantitative palettes

The following options are available in the Edit Colors dialog box for a continuous field.

Note: Options differ where noted for Tableau Server and Tableau Online.

Stepped Color

Select Stepped Color to group values into uniform bins, where each bin is associated with a color. Use the spin control to specify how many steps (bins) to create. For example, for a range of values from 0 to 100 you could specify five steps to sort values into five bins (0-20, 20-40, etc.).

If a diverging color palette is selected, the point where the palette transitions between colors is shown on the color ramp with a small black tick mark. When the number of steps is odd, the mark is placed in the middle of the transitional step. When the number of steps is even, the mark is placed at the boundary between the steps where the color changes.

Reversed

Select Reversed to invert the order of colors in the range. For example, if you want lower values to have a darker intensity in a sequential palette, reverse the palette. For a diverging palette, reversing the color palette means swapping the two colors in the palette, in addition to inverting the shades within each color range.

Use Full Color Range

With a diverging (two-color) palette, you can select to Use Full Color Range. Tableau assigns both the starting number and the ending number a full intensity for both color ranges. So if the range is from -10 to 100, the color representing negative numbers will be adjusted to change in shade much more quickly than the color representing positive numbers. If you don't select Use Full Color Range, Tableau assigns the color intensity as if the range of values was from -100 to 100, so that the change in shade is the same on both sides of zero. This means there will be much less change on the negative side, where actual values only range from -10 to 0, than on the positive side, where values range from 0 to 100.

The image on the left below shows a red-green diverging color palette for values from -858 to 72,986. Without using the full color range, -858 (associated with the small box at the lower right of the chart) shows as gray, because -858 is only about 1% as far to the negative side as 72,986 is to the positive side. When the full color range is used, as in the image on the right, -858 shows as a dark red, equal in intensity to the maximum positive value.

Include totals

Select Include Totals to include totals, sub-totals and grand totals in the color encoding. This option only applies when total values are included in the view.

Limit the color range

In Tableau Desktop, when you click Advanced in the Edit Colors dialog box, you can choose to specify the start, end, and center values for the range by selecting the check box and typing a new value into the field and the color ramp is adjusted accordingly.

The Start value is the lower limit in the range, the End value is the upper limit, and the Center value is where the neutral color is located on a diverging color palette.

Note: This option is not currently available in Tableau Server or Tableau Online.

Reset the color range

To return to the Automatic palette and the default color assignments, click Reset in the Edit Colors dialog box.

Note: If you are in web authoring mode and click Reset, the color palette will return to the default settings. Any options that were set in the Advanced option will also be reset. To undo this action, you can click Undo in the top menu. If your changes have already been saved, you must change the Advanced options in Tableau Desktop and republish the view.

Configure Color Effects

Click the Color drop down on the Marks card to configure additional Color settings not related to the actual colors shown.

Opacity

Modify the opacity of marks by moving the slider.

Adjusting opacity is especially useful in dense scatter plots or when you are looking at data overlaying a map or background image. As you slide the slider toward the left, marks become more transparent.

Mark borders

By default, Tableau displays all marks without a border. You can turn on mark borders for all mark types except text, line, and shape. On the Color drop-down control, select a mark border color.

Borders can be useful for visually separating closely spaced marks. For example, the views below show a scatterplot with mark borders turned on (left) and turned off (right). When borders are turned on, marks are easier to distinguish in areas where they are tightly clustered.

Color Palette From Image Pro 2 0 1 Putter White Gold

Note: You can also use the opacity setting to show the density of marks.

Color Palette From Image Pro 2 0 1 Putter White Black

When you are viewing a large number of color-encoded small marks, it is usually better to leave mark borders off. Otherwise borders can dominate the view, making it difficult to see the color encoding.

For example, the views below show bars that are segmented by a large number of color-encoded dimension members. With mark borders turned on (right), some of the narrower marks are difficult to identify by color. With borders turned off (left), the marks are easy to distinguish.

Mark halos

To make marks more visible against a background image or map, surround each mark with a solid contrasting color called a halo. Mark halos are available when you have a background image or a background map. On the Color drop-down control, select a mark halo color.

Markers

In Tableau Desktop, when you are using the Line mark type, you can add a marker effect to show or hide points along the line. You can show selected points, all points, or no points. On the Color drop-down control, select a marker in the Effects section.

Note: This option is not currently available in Tableau Server or Tableau Online.

Other articles in this section

Color Conversion Algorithms

Contents

The Hue/Saturation/Value model was created by A. R. Smith in 1978. It is based on such intuitive color characteristics as tint, shade and tone (or family, purety and intensity). The coordinate system is cylindrical, and the colors are defined inside a hexcone. The hue value H runs from 0 to 360º. The saturation S is the degree of strength or purity and is from 0 to 1. Purity is how much white is added to the color, so S=1 makes the purest color (no white). Brightness V also ranges from 0 to 1, where 0 is the black.

There is no transformation matrix for RGB/HSV conversion, but the algorithm follows:

When programming in Java, use the RGBtoHSB and HSBtoRGB functions from the java.awt.Color class.

The YIQ system is the color primary system adopted by National Television System Committee (NTSC) for color TV broadcasting. The YIQ color solid is made by a linear transformation of the RGB cube. Its purpose is to exploit certain characteristics of the human eye to maximize the utilization of a fixed bandwidth. The human visual system is more sensitive to changes in luminance than to changes in hue or saturation, and thus a wider bandwidth should be dedicated to luminance than to color information. Y is similar to perceived luminance, I and Q carry color information and some luminance information. The Y signal usually has 4.2 MHz bandwidth in a 525 line system. Originally, the I and Q had different bandwidths (1.5 and 0.6 MHz), but now they commonly have the same bandwidth of 1 MHz.

Here is the RGB -> YIQ conversion:

[ Y ] [ 0.299 0.587 0.114 ] [ R ]
[ I ] = [ 0.596 -0.275 -0.321 ] [ G ]
[ Q ] [ 0.212 -0.523 0.311 ] [ B ]

Here is the YIQ -> RGB conversion:

[ R ] [ 1 0.956 0.621 ] [ Y ]
[ G ] = [ 1 -0.272 -0.647 ] [ I ]
[ B ] [ 1 -1.105 1.702 ] [ Q ]

RGB values in a particular set of primaries can be transformed to and from CIE XYZ via a 3x3 matrix transform. These transforms involve tristimulus values, that is a set of three linear-light components that conform to the CIE color-matching functions. CIE XYZ is a special set of tristimulus values. In XYZ, any color is represented as a set of positive values.

To transform from XYZ to RGB (with D65 white point), the matrix transform used is [3]:

[ R ] [ 3.240479 -1.537150 -0.498535 ] [ X ]
[ G ] = [ -0.969256 1.875992 0.041556 ] * [ Y ]
[ B ] [ 0.055648 -0.204043 1.057311 ] [ Z ].

The range for valid R, G, B values is [0,1]. Note, this matrix has negative coefficients. Some XYZ color may be transformed to RGB values that are negative or greater than one. This means that not all visible colors can be produced using the RGB system.

The inverse transformation matrix is as follows:

[ X ] [ 0.412453 0.357580 0.180423 ] [ R ] **
[ Y ] = [ 0.212671 0.715160 0.072169 ] * [ G ]
[ Z ] [ 0.019334 0.119193 0.950227 ] [ B ].

CIE 1976 L*a*b* is based directly on CIE XYZ and is an attampt to linearize the perceptibility of color differences. The non-linear relations for L*, a*, and b* are intended to mimic the logarithmic response of the eye. Coloring information is referred to the color of the white point of the system, subscript n.

L^* = 116 * (Y/Yn)^1/3 - 16 for Y/Yn > 0.008856
L^* = 903.3 * Y/Yn otherwise

a^* = 500 * ( f(X/Xn) - f(Y/Yn) )
b^* = 200 * ( f(Y/Yn) - f(Z/Zn) )
where f(t) = t^1/3 for t > 0.008856
f(t) = 7.787 * t + 16/116 otherwise

Here Xn, Yn and Zn are the tristimulus values of the reference white.
The reverse transformation (for Y/Yn > 0.008856) is

X = Xn * ( P + a^* / 500 ) ³
Y = Yn * P ³
Z = Zn * ( P - b^* / 200 ) ³
where P = (L^* + 16) / 116

CIE 1976 L*u*u* (CIELUV) is based directly on CIE XYZ and is another attampt to linearize the perceptibility of color differences. The non-linear relations for L*, u*, and v* are given below:

L^* = 116 * (Y/Yn)^1/3 - 16
u^* = 13L^** ( u' - u_n' )
v^* = 13L^* * ( v' - v_n' )

The quantities u_n' and v_n' refer to the reference white or the light source; for the 2° observer and illuminant C, u_n' = 0.2009, v_n' = 0.4610 [ 1 ]. Equations for u' and v' are given below:

u' = 4X / (X + 15Y + 3Z) = 4x / ( -2x + 12y + 3 )
v' = 9Y / (X + 15Y + 3Z) = 9y / ( -2x + 12y + 3 ).

The transformation from (u',v') to (x,y) is:

x = 27u' / ( 18u' - 48v' + 36 )
y = 12v' / ( 18u' - 48v' + 36 ).

The transformation from CIELUV to XYZ is performed as following:

u' = u / ( 13L^*) + u_n
v' = v / ( 13L^* ) + v_n
Y = (( L* + 16 ) / 116 )³
X = - 9Yu' / (( u' - 4 ) v' - u'v' )
Z = ( 9Y - 15v'Y - v'X ) / 3v'

Disclaimer: I (N. Schaller) received e-mail from Alexandre Campo (acampo@laas.fr) stating that he felt the last three lines above should be

Y = (( L* + 16 ) / 116 )^3 * Yn

and then simplify by noticing u'v' - u'v' -4v' = -4v'

Color Palette From Image Pro 2 0 1 Putter White And Blue

X = 9Yu' / 4v'

I have not verified this, but have added it for your purusal.