Exercise #1. On the command line (the lower window with >>>) use the JES functions pickAFile, and makePictureto create a picture object to be used in Exercise #2 -#5. Alternatively, you may use the function pickFileAndMakePicturefrom Lab #1

Exercise #2. Write a function RGB2YLinear. This function takes a JES color as input and creates a luminance =0.2126+0.7152+0.0722from it. This luminance is then used to create and return a grayscale color with the JES functionColor(Y,Y,Y). Then write a functionpicture2GrayscaleLinearwhich takesa picture object as input, creates a copy of it, and changesthe colors of all pixelsof the copyto grayscale. Then your function will return the grayscale copy ofthe picture you created in Exercise#1.

Exercise #3. Write a function RGB2YNonlinear. This function takes a JES color as input and creates a luminance =0.299+0.587+0.114from it. This luminance is then used to create and return a grayscale color withthe JES functionColor(Y,Y,Y). Then write a function picture2GrayscaleNonlinearwhich takes a picture object as input,creates a copy of it, and changes the colors of all pixels to grayscale. Then your function will return the grayscale copy of the picture you created in Exercise#1.

Exercise #4. Discuss differences, if any, in the resulting pictures you created. Technical details are not necessary, but can be found at

Thank you!!! This is Python Language!