In this lab, I used JES to
achieve several effects in manipulating the colors of pictures,
specifically a picture of me at Stonehenge. Below is the original:
One effect I accomplished was the creation of the negative image of this picture, which inverts the colors. This picture is shown below.
Another effect that was utlized was the grayscaling of the picture. This essentially "eliminates" the color from a picture, by adding the weights of each color in the RGB scale, and averaging them. The effect of this can be seen below.
One final effect I acheived was really kind of random: I decreased the red by 70%, and the blue by 60%, and inverted the green in the image, to try and get a radioactive sort of look. The result was crazy!
The green really was emphasized because in RGB, the "black" is (0, 0, 0), so inverting the green would give a (0,255, 0), which is essentially solid green.
Back to John's course page
One effect I accomplished was the creation of the negative image of this picture, which inverts the colors. This picture is shown below.
Another effect that was utlized was the grayscaling of the picture. This essentially "eliminates" the color from a picture, by adding the weights of each color in the RGB scale, and averaging them. The effect of this can be seen below.
One final effect I acheived was really kind of random: I decreased the red by 70%, and the blue by 60%, and inverted the green in the image, to try and get a radioactive sort of look. The result was crazy!
The green really was emphasized because in RGB, the "black" is (0, 0, 0), so inverting the green would give a (0,255, 0), which is essentially solid green.
Back to John's course page