Convert a byte arry to OpenCV image in C++
arrays, c++, opencv
Solution
the previously mentioned method will work fine, if it's PIXEL data.
if instead, you have a whole jpg FILE in memory, headers, compression, and all, it won't work.
in that case you want:
Mat img = imdecode(data);
which will do the same as `imread()`, only from memory, not from a filename
Problem
I have a byte array that represents a .jpg file that I want to convert directly to an OpenCV Mat object. I have something like ``` byte* data; // Represents a JPG that I don't want to disk and then read. // What goes here to end up with the following line? cv::Mat* image_representing_the_data; ```