I have a binary file containing Bayer image in BGGR format. Every pixel is 10 bits.
For that I am reading the binary file into byte[] array and then did some bit level manipulation with the byte[] to create an short[] array such that
every cell contains 10 bit pixel. Now I need a way to convert the Bayer short[] array to a JPG image. For that, I am using OpenCV's Mat object and
Imgproc.cvtColor.
The code is as follows:
Mat mat1=new Mat();
mat1.create(1280, 1024, CvType.CV_16U);
mat1.put(1280, 1024, charpix); // charpix is short[]
Imgcodecs.imwrite("/../codec1.png", mat1);
Mat mat2=new Mat(1280,1024,CvType.CV_16U);
Imgproc.cvtColor(mat1, mat2, Imgproc.COLOR_BayerBG2RGB);
Imgcodecs.imwrite("/../codec2.png", mat2);
short[] data1 = new short[mat2.rows() * mat2.cols() * (int)(mat2.elemSize())];
mat2.get(0, 0, data1);
BufferedImage bim=new BufferedImage(1024, 1280, BufferedImage.TYPE_USHORT_GRAY);
bim.getRaster().setDataElements(0, 0,1024,1280,data1);
try {
ImageIO.write(bim, "png", new File("/../new.png"));
} catch (IOException e) {
e.printStackTrace();
}
I get no errors but as an output I am only getting a BLACK image for all the 3 images which I am trying to create.
1/4 of each the 3 images shows some color(either gray/rgb depending on cvType/BufferedImageType I use) and the rest part of the images is BLACK.Imgproc is not doing the desired conversion.Am I using Imgcodecs the right way?
Does anyone know where I may be wrong ? Any help would be greatly appreciated.
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