How to rotate around the image center by itext?

Question

double degPi = degrees * Math.PI / 180;   
double a = Math.cos(degPi)*tImgCover.getScaledHeight();
double b = Math.sin(degPi)*tImgCover.getScaledWidth();
double c = -Mat         


        

Answer 1

    public static BufferedImage rotateClockwise90( BufferedImage inputImage ){
        int width = inputImage.getWidth();
        int height = inputImage.getHeight();
        BufferedImage returnImage = new BufferedImage( height, width , inputImage.getType()  );

        for( int x = 0; x < width; x++ ) {
            for( int y = 0; y < height; y++ ) {
                returnImage.setRGB( height-y-1, x, inputImage.getRGB( x, y  )  );

            }
        }
        return returnImage;
}