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Selecting a Layer: In order to slice off one of the color layers of the image we can use the following command. This command assumes
Selecting a Layer: In order to slice off one of the color layers of the image we can use the
following command. This command assumes that the image has been loaded into a variable
called IMG.
IMG::;
This example will slice off the first layer which should be the red color layer as we have seen in
the previous challenge and saves it to a variable called R However you should notice that is
just a D matrix at the moment. MATLAB will interpret this as a grayscale image rather than
being a red color layer. In order to display just the red layer, we will need to create a D matrix
with the values in the blue layer and the green layer being set to
IMG, sizeIMG;
justred cat;
justgreen cat;
justblue cat;
Displaying a Single Layer: First we will create a D array of zeros with the same
dimensionsresolution as the image that we loaded. Then we use the prior example to select
the red layer and save it in R Then we create a D matrix which will be interpreted as a color
image and simply set the green and blue layers to be the matrix that we created. This
essentially recreates just the red layer of the image. These steps can be repeated to display just
the green layer and the blue layers.
cat A function in MATLAB that will concatenate arrays. The first parameter is because we
want to create a D array, the next three parameters are the color layers that we want to set.
TASK: PROGRAMMINGPLOTTING Take any image of your choice and load it into MATLAB.
Then using the example above, separate the image into its distinct red, green, and blue layers.
Save these layers to some variables that you can use later. Use imshow to display the layers
and put screenshots in the writeup
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