Hi, I am trying to read many 512x512 jpg files that extracted from a .db database as uint8 vector for each file.
The vector is not the pixel intensity matrix, but exactly the binary data of file. So I need to fwrite the vector into a temp jpg file to hard disk, then imread that file as matrix in memory.
Because the number of jpg can be hundreds of thousands, so the frequent io from hard disc make the process very slow.
Is there a way to "recognize" the uint8 vector as if it is on the hard drive, then read it as a image file into imread?