Problem creating image from a data vector

Question

Hello i have a problem in this aplication.
I get a image from a web cam. I want to put the original image in a file and the negative image in another file (in this example is not the negative image, is just a white image). The problem is when i use setData method. The image become black. If I use setFormat method the new image is the original image.
Here is the code with problems:
imageBuffer = frameGrabbingControl.grabFrame();
theData = new int[dataLength];
theData = (int[]) imageBuffer.getData();
for (int y = 0; y < videoHeight - imageScanSkip; y+=imageScanSkip) {
for (int x = 1; x < videoWidth - imageScanSkip; x+=imageScanSkip)
theData[y*videoWidth+x]=Integer.parseInt("FFFFFF",16);
Buffer b1=new Buffer(); //This is the new buffer in which i want to put the new pic
b1.setData(theData);
//here i create the 2 files frst from the original buffer and second from the new buffer b1
Image img = (new BufferToImage((VideoFormat)imageBuffer.getFormat()).createImage(imageBuffer));
Image img1 = (new BufferToImage((VideoFormat)b1.getFormat()).createImage(b1));
BufferedImage buffImg = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB);
BufferedImage buffImg1 = new BufferedImage(320,240, BufferedImage.TYPE_INT_RGB);
Graphics2D g = buffImg.createGraphics();
Graphics2D g1 = buffImg1.createGraphics();
g.drawImage(img, null, null);
g1.drawImage(img1, null, null);
try{
ImageIO.write(buffImg, "jpg", new File("c:\\webcam.jpg"));
ImageIO.write(buffImg1, "jpg", new File("c:\\webcam1.jpg"));
catch (Exception e){}
the webcam1.jpg file is black(it should be white).
If i put "b1.setFormat(imageBuffer.getFormat());" the webcam1.jpg will be same the file as webcam.jpg

Answer 1

Hello i have a problem in this aplication.
I get a image from a web cam. I want to put the original image in a file and the negative image in another file (in this example is not the negative image, is just a white image). The problem is when i use setData method. The image become black. If I use setFormat method the new image is the original image.
Here is the code with problems:
imageBuffer = frameGrabbingControl.grabFrame();
theData = new int[dataLength];
theData = (int[]) imageBuffer.getData();
for (int y = 0; y < videoHeight - imageScanSkip; y+=imageScanSkip) {
for (int x = 1; x < videoWidth - imageScanSkip; x+=imageScanSkip)
theData[y*videoWidth+x]=Integer.parseInt("FFFFFF",16);
Buffer b1=new Buffer(); //This is the new buffer in which i want to put the new pic
b1.setData(theData);
//here i create the 2 files frst from the original buffer and second from the new buffer b1
Image img = (new BufferToImage((VideoFormat)imageBuffer.getFormat()).createImage(imageBuffer));
Image img1 = (new BufferToImage((VideoFormat)b1.getFormat()).createImage(b1));
BufferedImage buffImg = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB);
BufferedImage buffImg1 = new BufferedImage(320,240, BufferedImage.TYPE_INT_RGB);
Graphics2D g = buffImg.createGraphics();
Graphics2D g1 = buffImg1.createGraphics();
g.drawImage(img, null, null);
g1.drawImage(img1, null, null);
try{
ImageIO.write(buffImg, "jpg", new File("c:\\webcam.jpg"));
ImageIO.write(buffImg1, "jpg", new File("c:\\webcam1.jpg"));
catch (Exception e){}
the webcam1.jpg file is black(it should be white).
If i put "b1.setFormat(imageBuffer.getFormat());" the webcam1.jpg will be same the file as webcam.jpg