To understand how to work with pictures in JES, you must first understand the objects (or encodings) that represent pictures.
You can imagine that each picture is made up of a collection of pixels, which is made up of pixel 0, pixel 1, pixel 2, etc, and that each pixel has it's own particular color.
| Pictures |
Pictures are encodings of images, typically coming from a JPEG file. |
| Pixels |
Pixels are a sequence of Pixel objects. They flatten the two dimensional nature of the pixels in a picture and give you instead an arraylike sequence of pixels. pixels[0] returns the leftmost pixel in a picture. |
| Pixel |
A pixel is a dot in the Picture. It has a color and an (x, y) position associated with it. It remembers its own Picture so that a change to the pixel changes the real dot in the picture. |
| Color | It’s a mixture of red, green, and blue values, each between 0 and 255. |
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