Steganography Intro

Encode the word "revolt" letter codesinto the picture apple

  1. Step 1: encode the word into numbers
  2. Step 2: write the numbers in binary
  3. Step 3: get the colors in the picture
  4. Step 4: change the least significant bits to match the binary code of the word
    1. choose a system: change red, then green, then blue of each pixel in that order
    2. mix it up: do 2 pixels in a row and then skip one
  5. Step 5: display the modified picture

flat apple appleWhich is the original and which is changed?