average = (red + green + blue)/3
write code to change the flowers.jpg image to grayscale, using the “average” strategy: for each pixel, compute the average of its red/green/blue values. This average number represents the brightness of the pixel 0..255. Then set the red, green, and blue values of the pixel to be that average number. The result is a grayscale version of the original color image. Once its working with flowers.jpg, try it with poppy.jpg or oranges.jpg. (Solution code available below)
Write code to change the banana.jpg image to be grayscale. Reminder: here is the line used in the loop to compute the average of the red/green/blue values and store that value in a variable named “avg”.
avg = (pixel.getRed() + pixel.getGreen() + pixel.getBlue())/3;
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