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Warning: session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in /var/www/tb-usercake/models/config.php on line 51
static void invertImage(BufferedImage img) { int w = img.getWidth(), h = img.getHeight(); for (int x = 0; x < w; x++) for (int y = 0; y < h; y++) { int rgba = img.getRGB(x, y); Color col = new Color(rgba, true); col = new Color( 255 - col.getRed(), 255 - col.getGreen(), 255 - col.getBlue()); img.setRGB(x, y, col.getRGB()); } }