imdecode/imwrite PNG file changes from 96 to 72 DPI
Apologies in advance for what maybe a silly noob question. I am using the following java code to read and immediately write out a PNG file (attached):
byte[] buf = getBytesFromFile("./t2.png");
Mat mat = imdecode(new MatOfByte(buf), IMREAD_COLOR);
MatOfInt params = new MatOfInt(CV_IMWRITE_PNG_COMPRESSION, 0);
imwrite("./t3.png", mat, params);
The original file has 96 dpi, and the output file has 72 dpi.
Also, for what its worth, the same thing happens if I replace the first 2 lines with Mat mat = imread("./t2.png");
Why is that? I would like for the output file to have the same settings as the original. Thanks
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