Android 的坑 ByteBuffer buffer = ByteBuffer.allocate(mPreset.getCoverImg().getByteCount());mPreset.getCoverImg().copyPixelsToBuffer(buffer);mPixelBuf = buffer.array(); 获取的像素点数据组合出来会失真 下面是不失真的做法 int w = bitmap.getWidth();
#include <fstream> #include <iostream> #include <opencv2/imgcodecs.hpp> #include <opencv2/opencv.hpp> using namespace cv; using namespace std; int main(int argc, char **argv) { const uint32_t cols = 24; const uint32_t row
