ascii_art
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| ascii_art [2023/03/25 14:10] – [Step 2. Load your image’s pixel data into a 2-dimensional array] frchris | ascii_art [2023/03/25 14:23] – [ASCII Art] frchris | ||
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| Line 33: | Line 33: | ||
| """" | """" | ||
| </ | </ | ||
| + | |||
| + | This Lab is based on one of [[https:// | ||
| + | |||
| ==== Step 0. Choose an image ==== | ==== Step 0. Choose an image ==== | ||
| Line 158: | Line 161: | ||
| private BufferedImage image; | private BufferedImage image; | ||
| private String fileName; | private String fileName; | ||
| + | private int width, | ||
| + | private int[] rgb; // for 8bit RGB packed in an int array | ||
| + | private Color[][] px; | ||
| public Step2(String fileName) | public Step2(String fileName) | ||
| { | { | ||
| Line 166: | Line 172: | ||
| image = ImageIO.read(new File(fileName)); | image = ImageIO.read(new File(fileName)); | ||
| System.out.println(fileName + " read "); | System.out.println(fileName + " read "); | ||
| - | | + | width = image.getWidth(); |
| - | System.out.println(" | + | height = image.getHeight(); |
| - | // Print the width and height | + | System.out.println(" |
| + | rgb = image.getRGB(0, | ||
| + | System.out.println(rgb.length); | ||
| + | // rgb is a 1D array, with the rows listed one after the other. | ||
| + | ///to convert to a 2D array use something like this: | ||
| + | // grid (x,y) = rgb[ y*width + x]; | ||
| + | // Make a new 2D array of color name px, and fill it from the | ||
| + | // for example, px[0][0] = new Color ( rgb[0] ); | ||
| + | | ||
| } | } | ||
| Line 176: | Line 190: | ||
| } | } | ||
| } | } | ||
| + | public Color[][] getPx() { return px;} | ||
| public static void main(String[] args) | public static void main(String[] args) | ||
| { | { | ||
| Line 184: | Line 198: | ||
| } | } | ||
| </ | </ | ||
| - | You can see what your new 2D Array of Color looks like with | + | You can see what your new 2D Array of Color looks like with {{ :: |
| ==== Step 3. Convert the RGB tuples of your pixels into single brightness numbers | ==== Step 3. Convert the RGB tuples of your pixels into single brightness numbers | ||
| Line 191: | Line 205: | ||
| - | [[https:// | + | [[https:// |
ascii_art.txt · Last modified: 2023/03/27 10:46 by frchris