Hi, I've successfully rotated image in opencv (4android), using code below

// -----CALCULATION FOR NEW WIDTH/HEIGHT------

double radians = Math.toRadians(Angle);

double sin = Math.abs(Math.sin(radians));

double cos = Math.abs(Math.cos(radians));

double radian = Math.toRadians(waterMarkAngle);

int newWidth = (int) (scaledImage.width() * cos + scaledImage.height() *

sin);

int newHeight = (int) (scaledImage.width() * sin + scaledImage.height() *

cos);

// rotating water image

org.opencv.core.Point center = new org.opencv.core.Point(newWidth/2,

newHeight/2);

Mat rotImage = Imgproc.getRotationMatrix2D(center, waterMarkAngle, 1.0); //

1.0 means 100 % scale

Size s = new Size(newWidth, newHeight);

Imgproc.warpAffine(scaledImage, scaledImage, rotImage,

s,Imgproc.INTER_LINEAR + Imgproc.CV_WARP_FILL_OUTLIERS);//

Highgui.imwrite("mnt/sdcard/rotatedWatermark.png",scaledImage);

// result http://www.freeimagehosting.net/hb51q

how do I centralize this resultant image?

Thanks in advance.

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