1. Picture Lab

2. Manipulating Pictures Discussion and activities with java.awt.Color introduce students to megapixels, pixels, the RGB color model, binary numbers, bit, and byte. Processing individual pixels involves 2D array concepts: row-major order, column-major order, array of arrays, and nested loops. And more…

3. Intro to digital pictures and color 20 minutes – 1 hour

4. Picking a color Students practice making different colors using combinations of red, green, and blue light using a JColorChooser. 20 minutes – 1 hour

5. Exploring a picture PictureExplorer tool Pixelation 20 minutes – 1 hour

6. Two-dimensional arrays in Java (Optional activity) Students write methods for 2D array of integers. – Declare 2D array – Create 2D array – Get or set elements – Get number of rows/columns 0 1 2 0 1 2 3 1 4 5 6 – Traverse in row-major and column-major order 30 minutes – 1 hour

7. Modifying a picture OOP Concepts 1 – 2 hours

8. Mirroring Loop through a range of rows and columns. 1 – 2 hours 01234 0 1 2

9. Mirroring part of a picture Loop through a range of rows and columns. 1 hour

10. Creating a collage Overload copy method Modifying Mirror the resulting collage. 1 – 3 hours Collage with vertical mirror

11. Simple edge detection Calculate color difference with distance formula 1 – 3 hours

12. Extensions – in Teacher Guide Steganography Chroma key