1. # Use Python to write function named adjustRedPercent(picture,adjustmentPerce
ID: 3887776 • Letter: 1
Question
1.
# Use Python to write function named adjustRedPercent(picture,adjustmentPercentage)
# which takes in the adjustment value as a percentage. E.g. when the
# value in adjustmentPercentage is 70, the function should make the
# image's red values 70% of their original values. If the adjustmentPercentage
# is 140, it should make the image's red values 140% of their original
# value.
# Hint: There is no need for if-statements.
# Note: Assume that adjustmentPercentage will only be 0 or greater.
# There is no need to perform error-checking.
# Note 2: You can create a corresponding driver in the space below as well.
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2.
# Write a driver program that can call these 2 functions and include the 2 functions
# as well in your final answer.
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Each of the following is equivalent to the increase red function-Program 10 (page 61). Test them and convince yourself that they work. Which do you prefer and why? def increaseRed2 Cpicture) for p in getPixelsCpicture): setRed (p,getRed (p)*1.2) def increaseRed3 Cpicture): for p in getPixels (picture): ent getRed (p) redCompon greenComponent getCreen(p) blueComponent-getBlue (p) newRed-int (redComponent*1.2) newColor-makeColor (newRed.greenComponent,blueComponent) setColor (p, newColor)Explanation / Answer
def adjustRedPercentage(picture,adjustPercentage):
for p in getPixels(picture):
setRed(p,getRed(p)*(adjustPercentage/100))
def increaseRed2(picture,adjustPercentage):
for p in getPixels(picture):
setRed(p,getRed(p)*1.2)
def increaseRed3(picture,adjustPercentage):
for p in getPixels(picture):
redComponent=getRed(p)
greenComponent=getGreen(p)
blueComponent=getBlue(p)
newRed=int(redComponent*1.2)
newColor=makecolor(newRed,greenComponent,blueComponent)
setColor(p,newcolor)
if __name__ == '__main__':
increaseRed2("C:Users g186023DesktopIMG_20170113_175146.jpg")
increaseRed2("C:Users g186023DesktopIMG_20170113_175146.jpg")
adjustRedPercentage("C:Users g186023DesktopIMG_20170113_175146.jpg",70)
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