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Lab 9: Images
Brighten Picture
In a file called bright.py, write a function
called increase_brightness(picture). This function should
alter the pixels stored inside of the picture object, so
that the entire image is now brighter. Your function should then
display the new, brighter image.
Example
Before
After
Hint
Use the makePicture function to create a picture in
JES. You can use the show function to display the
image to check to make sure it works.
The getPixels(a_picture) function returns a
collection of all of the pixels in an image. You can use this
function, as well as a for loop to examine and modify
each pixel in an image.
The getRed, getGreen,
and getBlue functions will give you the current
color of a pixel.
The setRed, setGreen,
and setBlue functions will let you set the color of
a pixel.
In order to brighen the image, you want to increase all of the color values for each pixel by the same fixed amount.