Hello, I use OpenCV 3.4.3 in Java for android
I use this script : https://docs.opencv.org/master/d3/db7/tutorial_hdr_imaging.html to make hdr picture.
However My result is to dark and I want to correct it, but I want to keep details out.
There is an exemple :
There is My code:
System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
textCreating.setVisibility(View.INVISIBLE);
Mat response = new Mat();
CalibrateDebevec calibrate = Photo.createCalibrateDebevec();
Mat matTimes = new Mat(times.size(), 1, CvType.CV_32F);
float[] arrayTimes = new float[(int) (matTimes.total() * matTimes.channels())];
for (int i = 0; i < times.size(); i++) {
arrayTimes[i] = times.get(i);
}
matTimes.put(0, 0, arrayTimes);
calibrate.process(images, response, matTimes);
Mat hdr = new Mat();
MergeDebevec mergeDebevec = Photo.createMergeDebevec();
mergeDebevec.process(images, hdr, matTimes);
Mat ldr = new Mat();
TonemapDurand tonemap = Photo.createTonemapDurand(4.0f);
tonemap.process(hdr, ldr);
Mat fusion = new Mat();
MergeMertens mergeMertens = Photo.createMergeMertens();
mergeMertens.process(images, fusion);
Core.multiply(fusion, new Scalar(255, 255, 255), fusion);
File dir = new File(Environment.getExternalStorageDirectory() + File.separator + "hdr" + File.separator + "picturesUnfusionned");
if (dir.isDirectory()) {
String[] children = dir.list();
for (int i = 0; i < children.length; i++) {
new File(dir, children[i]).delete();
}
}
String fileName = Environment.getExternalStorageDirectory() + File.separator + "hdr" + File.separator + "Pictures" + File.separator + "fusion_" + String.valueOf( new File(Environment.getExternalStorageDirectory() + File.separator + "hdr" + File.separator + "Pictures").listFiles().length + 1 ) + ".jpg";
Mat newImage = Mat.zeros(fusion.size(), fusion.type());
double alpha = 1.0; /*< Simple contrast control */
int beta = 10; /*< Simple brightness control */
fusion.convertTo(newImage, CvType.CV_32F, alpha, beta);
Imgcodecs.imwrite(fileName, newImage);
How can I do to correct the dark pixels ?
Thanks in advance
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