Homework 5

Question 1

img=imread(image)

Answer 1

downloads the image into a matrix

Question 2

rot90(image,x)

Answer 2

rotates the image 90 degrees an x number of times

Question 3

cut out a piece of the picture

Answer 3

[rows, cols] = size(img)
cut1=(rows/2,cols/2)
pic2=cut1

Question 4

sort()

Answer 4

sorts data in ascending or descending order

Question 5

subplot(a,b,c)

Answer 5

creates a series of plots displayed by a by b with the plot below the command being the c order plot

Question 6

plot(x,y,color)
(can also be- plot(data,color)

Answer 6

plots a graph of x by y with a line/symbol according to what is provided

Question 7

histogram(x,a)

Answer 7

creates a histogram from a matrix with an x number of bins

Question 8

gtext()

Answer 8

allows text to be placed manually on a graph/plot