Alright well here is one way to do this:
-Find the length and width of the 1s and 0s block in the file.
-Create a multi-dimensional array of integers with that length and width
int[][] plane;
//inside of a method...
plane = new int[length][width]; //where length is the number of rows (left/right) and width is the number of columns (up/down)
-Instantiate an Image or BufferedImage using a GUI component or by whatever means you want.
(personally I would use BufferedImage and call createGraphics() to get a Graphics2D object to work with)
-Make a Scanner reading from your binary text file.
-Scan each line using the Scanner's next() method.
public void example() {
Scanner sc = new Scanner(file);
for(int[] row:plane) {
String s = sc.next();
char[] chars = s.toCharArray();
for(int i=0;i<s.length();i++) {
row[i] = Integer.parseInt(Character.toString(chars[i]));
}
}
}
You now have a set of 1s and 0s. You can iterate through that and draw squares onto an image with different colors depending on the number.
//g2 is a Graphics2D object of the image
int pixelWidth = 5; //Each of our picture "pixels" is 5 actual screen pixels in width and length.
int pixelHeight = 5;
int x,y = 0; //Location at which the "pixel" is being drawn.
for(int[] row:plane) {
for(int i:row) {
if(i==0)
g2.setColor(color);
else if(i==1)
g2.setColor(color2);
g2.fillRect(x,y,pixelWidth,pixelHeight);
x+=pixelWidth;
}
y+=pixelHeight;
}
You could easily incorporate those last two examples into one block of code. Just think about it. Instead of converting to integers, you could make your plane a multidimensional array of characters (chars), then test for the characters 1 and 0.
This should work. I kind of threw the code together on the spot (didn't compile it or anything) so if there are any syntax errors or simple logical errors, I apologize. Let me know and I will correct them.
See where you can get yourself and if you have more questions just ask.
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Converting a picture made up of 0s and 1s into a colored picture??
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I wouldn't ask for how to exactly do it, just how to start and some examples as to how to do such conversion. An explanation of why we need to include such code would be helpful as well, I'm planning to learn from this task.
