Taking a Picture

The most basic way to take an image with JRPiCam is to invoke the takeStill() method:

RPiCamera piCamera = new RPiCamera();
piCamera.takeStill("My First JRPiCam Image.jpg); //Take and save an image

The above code creates an instance of RPiCamera and uses it to call the takeStill() method. takeStill() captures an image and then saves it to the RPiCamera's save directory (which in this case is "/home/pi/Pictures" since we didn't specify anything different, see this page for for detail). The result of this code will be a JPEG image located at "/home/pi/Pictures/My First JRPiCam Image.jpg".

The dimensions of an image can also be specified in takeStill():

piCamera.takeStill("ACoolImage.jpg", 500, 500); //takes a 500x500 image

takeStill() also returns a File representing the image that was taken and saved. One way this feature can be taken advantage of is to load the saved image into a BufferedImage:

BufferedImage myPic = ImageIO.read(piCamera.takeStill("ACoolImage.jpg", 500, 500)); //takes and saves an image, then loads it into a BufferedImage from the Pi's memory