Questions on the color models, schemes, named colors and color functions supported by Mathematica.

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0
votes
0answers
59 views

ContourPlot color problems

I tried to use contourplot to a 2D fucntion with rescaled color, the code is given below ...
0
votes
1answer
49 views

Manually choosing colors in ListPlot

I have a ListPlot of 4 data sets (tables) and I want to manually choose what color each one has. data1 = Table1 data2 = Table2 etc. and then ...
1
vote
2answers
92 views
0
votes
2answers
62 views

How do I color an Image generated from data such that one range of values is one color gradient and the others another color gradient [closed]

I can generate a Gray scale Image from some data that I collect. However I am trying to figure out how to generate the image with two color gradients or color scales based on the value. For example ...
2
votes
2answers
66 views

Can i change AutoStyles colors for undefined variables?

I want to change from blue to red the color of the undefined variables; but only for the current Notebook
19
votes
3answers
617 views

White balance correction with Mathematica

Does Mathematica include a function to correct the white balance of an image? ImageAdjust would seem to be the first go-to choice, but I haven't found a way to ...
5
votes
3answers
200 views

mixing color of individual parts of a function in DensityPlot

I have a function which is a sum of three terms and I want to plot it in a DensityPlot. However, I would like that the ColorFunction would be the RGBColor resulting of the mixed R color corresponding ...
2
votes
1answer
98 views

Change the colors of individual atoms in a .mol or XYZ file

Similar to (Changing the atom color for plotting xyz-files), I want to take a molecule and then simply change the colors of individual atoms. I don't want to change all atoms of a type to a color ...
4
votes
1answer
87 views

What are all the Properties that ColorData supports?

The documentation for ColorData reads: Possible properties in ColorData["scheme","property"] include: ...
14
votes
1answer
194 views

Major slowdown when using a ColorFunction with more than one named scheme

Problem remains in 10.1 Earlier Kuba noted a major slowdown with code Simon Woods posted. Here is a simplified example. First a color function using two different named gradient schemes: ...
5
votes
4answers
192 views

Coloring an image with two Color schemes based on a Range

I would like to color an image generated from some data using two colorschemes based on two ranges of the data. This is my attempt. ...
0
votes
0answers
14 views

How to converrt RGB to YCbCr [duplicate]

While converting rgb to Ycbcr, do we get values as floating point numbers? I would like to have Y, Cb, Cr values as integers. Is it possible?
6
votes
2answers
176 views

Color lines by angle

I would like to color some lines according to the following color function: ...
1
vote
1answer
105 views

Piecewise ColorFunction for Plot3D

I want to make a 3D plot where the ColorFunction is different depending on whether the function value is positive or negative. I know how to do the following: ...
3
votes
2answers
78 views

How do I apply a ColorDataFunction[] to a grayscale image? [duplicate]

Suppose I have a 2D array im of real values between 0 and 1, representing a grayscale image. I can turn im into an image very ...
1
vote
1answer
196 views

Adjusting contrast of a color scale with ListDensityPlot

I am using ListDensityPlot to plot data of the form {{x1,y1,z1},{x2,y2,z2}, …}. It results in the plot shown below. But I'd like to adjust the color scale contrast to better show the variations in ...
31
votes
3answers
741 views

A better “VisibleSpectrum” function?

Since ColorData["VisibleSpectrum"] is wrong, I would like to have a more accurate function to use. Can this information be extracted from Mathematica itself?
5
votes
5answers
328 views

Plot all curves in a table with a single color

I want all of my solutions in a table to be the same color. My attempt: ...
3
votes
3answers
403 views

How to create a Disk with smoothly changing coloring?

I want to have a disk. But this disk shouldn't have a fixed color; instead, I'd like it's color to fade smoothly. Until now, I came up with two ideas how to achieve this. Idea #1: ...
5
votes
2answers
323 views

How do I show only the intrinsic color of 3D polygons?

System: Mathematica 9, Windows 7. I want to assign a polygon a color in such a way that it is rendered in that color irrespective of any ambient light sources. In other words I want Yellow to be ...
1
vote
1answer
70 views

Cannot shade 3D vector in different color

I need to color each vector into different colors... but this formula just doesn't work: ...
2
votes
2answers
55 views

Coloring specific elements of sets with a prime modified order in an array plot

I have a set of sets: {{1}, {0}, {1, 1}, {0}, {1, 0, 1}, {0}, {1, 1, 1, 1}, {0}, {1, 0, 0, 0, 1}} I’m seeking to apply a color rule to only every other set, starting from the first (from left to ...
0
votes
0answers
42 views

Coloring all elements in prime ordered sets amongst a set of sets

So I have a set of sets. I want only those sets whose order amongst the sets plus one is prime to be colored (all the same, anything but the standard black). Any ideas? ArrayPlot[{{1}, {1, 1}, {1, 1, ...
4
votes
1answer
160 views

The default ColorFunction of DensityPlot before v10?

The default ColorFunction of Plot, Plot3D before v10 is respectively mentioned here and ...
2
votes
2answers
95 views

How to convert a coloured image according to the colorfunction I defined?

I got an image from a website which follows the colorfunction "Rainbow", e.g. ...
1
vote
2answers
101 views

Adding colors to objects in a loop

I'm just starting out in Mathematica and still learning the ropes. I'm making a "necklace" which is a circle with squares around it. The following works: ...
3
votes
1answer
175 views

How can I combine two color schemes for plotting?

I want to use ListContourPlot to display all negative values using one colorscheme and all positive values using another color scheme. This question Define a color function using Piecewise gives some ...
3
votes
2answers
555 views

Color a Function by its Derivative

Mathematica's ColorFunction seems to struggle with coloring a function "y" by its derivative D[y,x]. This is a seemingly simple task, but Mathematica can't handle it. While I can certainly evaluate ...
1
vote
1answer
127 views

How to apply two kinds of Plot styles in single graph

My version is 9.0 I want to apply ColorData and Line Width styles at the same time, like the ColorTheme Function new in 10.0, but there is always errors. Codes under here: ...
1
vote
1answer
236 views

Plot multiple solutions of a system of differential equations with different values of constant c by using NDsolve

I am traying to solve system of differential equations with different values of constant c then plot the solution with different values of the constant c. where c= 2.2758, 2.04822, 1.82064, 1.59306, ...
2
votes
0answers
59 views

Background color does not display in InputField unless Appearance option is also specified

I get the same behavior for v10.1.0, v.10.0.2 and v.9 with OS X (10.9.5) : No background color is displayed in InputField if I just set properly the option. For ...
2
votes
0answers
99 views

How can I transfer colors from first image into second image? [duplicate]

How can I transfer colors from first image into second image, where every object from the first image should take the same object's color from first image. This images are only an example. this is ...
3
votes
4answers
166 views

ReplaceImageValue and ReplacePixelValue extremely slow

I have a grey scale image: and I am doing the following: bin = Binarize[image, 0.18] ...
5
votes
2answers
110 views

BarLegend using Function that uses Blend

Bug introduced in 10.0 and fixed in 10.1 I'm sorry if this is a duplicate, but I don't even know how to look for it. I had this line of code that worked on a Notebook I wrote on Mathematica 9.0: ...
3
votes
1answer
167 views

How can I pick a color from a ColorMap and colorize selected image pixels with this color

I have a binarized image and would like to set pixel values which are 1 to a certain (any) color picked from ColorData["TemperatureMap"] and 0 to another color of TemperatureMap. How can I do that? ...
12
votes
2answers
457 views

Modify existing color scheme

I am using the "TemperatureMap" color scheme for image processing. How can I set the lowest color value to Black? Generally ...
1
vote
2answers
180 views

Colorizing thresholded images with different colors

I am switching from IDL (from exelis) to Mathematica and want to do the following: thersholding a image (all values above a certain threshold are set 1, the rest is 0 ) colorizing the thresholded ...
2
votes
2answers
125 views

ListPlot a bunch of points that changes colour

I have a list of points: r = Range[-Pi/2, Pi/2, Pi/8]; angles = (c = Tuples[r, 2]) and a list of numbers which will determine the colour of the points above: ...
9
votes
3answers
243 views

Match colors to plot themes

How do I get the colors to match the plot theme when I use a PlotLegend that is separate to the plots? I have had a look at How to access new colour schemes in ...
2
votes
1answer
72 views

Inconsistent behavior in ColorFunctionScaling of BarLegend in v10.0.1

I find the ColorFunction in BarLegend behaves very weirdly: Force rescaling from 0 to 1 For example: ...
3
votes
1answer
119 views

RegionPlot with ColorFunction gives ugly frame labels

I was working on a simple 2D region plot: ...
1
vote
1answer
112 views

Plot multiple solutions [duplicate]

I want to plot multiple solutions of an equation, so that one can differ them in the plot. The given equation is e.g. ...
0
votes
1answer
87 views

ColorFunction that depends on angle of line

I have a ListLinePlot, and I want the ColorFunction to vary as the angle, so that the color of the whole line depends on its angle from the x-axis. Here is a MWE of what I am doing: ...
2
votes
2answers
106 views

Default color for Filling in Mathematica 9

The default color scheme for plots in my Mathematica version is ColorData[1]. What about for the Filling option?
0
votes
0answers
22 views

Different color for plots inside manipulate object [duplicate]

I want to plot two functions in the same plot (meand and approxmean) with a different color. When I place the plot commands outside of the manipulate and grid region they are colored differently but ...
3
votes
1answer
238 views

Want a different color for each curve displayed with Show

I want a different color for each curve that I am displaying with Show. The functions are: custom1 custom2 custom3 custom4 custom5, and I am using the following ...
0
votes
1answer
71 views

Preventing Colors of Graphics from Blending

I am displaying multiple Disks that overlap and many of the Disks are different colors. Currently, the regions in which the Disks overlap are a color that is a mixture of the two Disks. I would like ...
3
votes
3answers
194 views

How to shade a plotted region in specific direction?

I am using RegionPlot to plot a linear program maximize 30x1+25x2 with the constraints ...
4
votes
0answers
62 views

How to replicate v9's color conversion to LAB under v10

Mathematica 10(.0.0) appears to use a different flavor of the LAB color space, but I would like to emulate the same behavior observed in version 9(.0.0). v9 ...