bufferedimage

I want to load BufferedImage in my application. For that I am using ImageIO but I am getting java.lang.NoClassDefFoundError : BufferedImage tgtImg = loadImage("ImageD2.jpg"); public static BufferedImage loadImage(String ref) { BufferedImage bimg = null; try { bimg = ImageIO.read(new File(ref)); } catch (Exception e) { e.printStackTrace(); } return bimg; } but i am getting exception: 03-15 18:05:22.051: ERROR/AndroidRuntime(437): java.lang.NoClassDefFoundError: javax.imageio.ImageIO ImageIO is not supported in Android SDK Could you achieve the same thing with Bitmap and BitmapFactory ?? like so

I see that a number of people have had a similar problem, however I'm yet to try find exactly what I'm looking for. So, I have a method which reads an input image and converts it to a byte array: File imgPath = new File(ImageName); BufferedImage bufferedImage = ImageIO.read(imgPath); WritableRaster raster = bufferedImage .getRaster(); DataBufferByte data = (DataBufferByte) raster.getDataBuffer(); What I now want to do is convert it back into a BufferedImage (I have an application for which I need this functionality). Note that "test" is the byte array. BufferedImage img = ImageIO.read(new

I am using the JScrollNavigator component described here , in order to provide a navigation window onto a large "canvas-like" CAD component I have embedded within a JScrollPane . I have tried to adapt the JScrollNavigator to draw a thumbnail image of the canvas to provide some additional context to the user. However, the action of doing this causes the rendering of my application's main frame to become corrupted. Specifically, it is the action of calling paint(Graphics) on the viewport component (i.e. my main canvas), passing in the Graphics object created by the BufferedImage that causes

I'm trying to create a simple image editing program in java. I made an ImageCanvas object that has all the information about the image that is being edited (some basic properties, list of effects being applied, a list of BufferedImage layers, etc.) and I wanted a simple way to save it to disk so it could be opened again later. I figured that using Java's defualt Serializable interface might be exactly what I was looking for and I could just write the entire object to file and read it back into memory again at a later time. However, ImageCanvas includes an ArrayList<BufferedImage> , and

The getRGB() method returns a single int. How can I get individually the red, green and blue colors all as the values between 0 and 255? Java's Color class can do the conversion: Color c = new Color(image.getRGB()); int red = c.getRed(); int green = c.getGreen(); int blue = c.getBlue(); A pixel is represented by a 4-byte (32 bit) integer, like so: 00000000 00000000 00000000 11111111 ^ Alpha ^Red ^Green ^Blue So, to get the individual color components, you just need a bit of binary arithmetic: int rgb = getRGB(...); int red = (rgb >> 16) & 0x000000FF; int green = (rgb >>8 ) & 0x000000FF; int

So in a BufferedImage , you receive a single integer that has the RGB values represented in it. So far I use the following to get the RGB values from it: // rgbs is an array of integers, every single integer represents the // RGB values combined in some way int r = (int) ((Math.pow(256,3) + rgbs[k]) / 65536); int g = (int) (((Math.pow(256,3) + rgbs[k]) / 256 ) % 256 ); int b = (int) ((Math.pow(256,3) + rgbs[k]) % 256); And so far, it works. What I need to do is figure out how to get an integer so I can use BufferedImage.setRGB() , because that takes the same type of data it gave me. I think