So, to rotate the image by 90 degrees clockwise, the idea is to manually place each pixel in its new position. You’d first create a new blank image with the dimensions swapped from the original—so if the original is 360x480, the new one will be 480x360. Then, for each pixel in the original image, you figure out where it should go in the rotated version. The pixel at position (x, y) in the original moves to (y, width-1-x) in the new image. This way, you get the 90-degree rotation.

The tricky part is making sure you don’t end up with coordinates that are out of bounds in the new image. While your approach works, it's not the most efficient for larger images since you’re manually moving each pixel. A faster way would be to use something like the Pillow library, which has built-in functions for rotating images more efficiently.