Use of built-in colormaps - image processing, MATLAB in Engineering

Assignment Help:

Use of built-in colormaps:

MATLAB has built-in colormaps, it is also possible to generate others by using combinations of any colors. For illustration, the following generates a customized colormap with only three colors: black, white, & red. This is then set to be the present colormap by passing the color map matrix to the colormap function. Then, a 40× 40 matrix of arbitrary integers in the range from 1 to 3 (as there are just 3 colors) is generated, and that is passed to the image function; the results are as shown in figure:

237_Use of built-in colormaps.png

>> mycolormap = [0 0 0; 1 1 1; 1 0 0]

mycolormap =

0 0 0

1 1 1

1 0 0

>> colormap(mycolormap)

>> mat = randint(40,40,[1 3]);

>> image(mat)


Related Discussions:- Use of built-in colormaps - image processing

Illustration of graphics properties, Illustration of Graphics properties: ...

Illustration of Graphics properties: A particular property can also be exhibited, for illustration, to view the line width:     >> get(hl,'LineWidth')     ans =

Illustration of if - else statement, Illustration of if - else statement: ...

Illustration of if - else statement: The one application of an if-else statement is to check for errors in the inputs to a script. For illustration, a former script prompted t

Plotting streamline in matlab, I have a vector of X, one for Y , one for x-...

I have a vector of X, one for Y , one for x-direction velocity U and one for y-direction velocity V. they are at same size. How can I plot streamline of that flow? I follow all exa

Forward elimination, Forward elimination: In forward elimination, we w...

Forward elimination: In forward elimination, we want to obtain a 0 in the a 21 position. To accomplish this, we can alter the second line in the matrix by subtracting from it

Displaying expressions, Displaying expressions: The good-looking funct...

Displaying expressions: The good-looking function will show such expressions by using exponents; for illustration, >> b = sym('x^2') b = x^2 >> pretty(b)

True color matrice - image processing, True color matrice: The true co...

True color matrice: The true color matrices are the other way to represent images. The true color matrices are 3-dimensional matrices. The first two coordinates are the coordi

Finding sums by for loop, Finding sums and products: A very general ap...

Finding sums and products: A very general application of a for loop is to compute sums and products. For illustration, rather than of just printing the integers 1 through 5, w

Data structures, Data structures: The Data structures are variables wh...

Data structures: The Data structures are variables which store more than one value. In order to made sense to store more than one value in a variable, the values must in some

Splits a string - strtok function, Splits a string : The strtok functi...

Splits a string : The strtok function splits a string into pieces; it can be called in many ways. The function receives one string as an input argument. It appears for the fir

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd