How to rotate an image

How to rotate an image

Rotate and flip an image

         Rotating an image with a fixed angle of 90/180/270-degree with or without a flip can be done with RotateFlip method. You need to pass a rotate type parameter to the method. In the Java code example below we use the type `Rotate270FlipNone`:

// For complete examples and data files, please go to https://github.com/Muhammad-Adnan-Ahmad/Aspose.Imaging-for-Java
// loading an Image
Image image = Image.load(dataDir + "aspose-logo.jpg");

// Rotating Image
image.rotateFlip(RotateFlipType.Rotate270FlipNone);
image.save(dataDir + "RotatingAnImage_out.jpg");

         Please refer to the Rotate and flip types parameters list for available rotating types.

Rotate an image to the specific angle

         Additionally, you can rotate an image to a specific angle with Rotate method. For clockwise rotation, the rotation angle value should be positive and for the opposite direction - negative. Also, you can use Rotate method with additional parameters. `Resize proportionally` boolean parameter indicates whether the resulting image resizes proportionally or not. Otherwise, empty corners will appear after the image was rotated and you need to indicate the background color to fill the corners.

// For complete examples and data files, please go to https://github.com/Muhammad-Adnan-Ahmad/Aspose.Imaging-for-Java
RasterImage image = (RasterImage) Image.load(dataDir + "aspose-logo.jpg");

// Before rotation, the image should be cached for better performance
if (!image.isCached()) {
	image.cacheData();
}

// Perform the rotation on 20 degree while keeping the image size
image.rotate(20f);

// Save the result to a new file
image.save(dataDir + "RotatingImageOnSpecificAngle_out.jpg");