The libjpeg codec supports 12 bit JPEG and there even exists engineering high performance edition. A choice of changes to engineering JPEG image can be carried out losslessly it’s, without recompression and matlab linked pleasant loss so long as matlab picture size is engineering multiple of 1 MCU block Minimum Coded Unit usually 16 pixels in both instructions, for 4:2:0 chroma subsampling. Utilities that enforce this consist of:Blocks can be rotated in 90 degree increments, flipped in matlab horizontal, vertical and diagonal axes and moved approximately in matlab picture. Not all blocks from matlab fashioned picture are looking to be used in matlab changed one. The top and left fringe of engineering JPEG picture must lie on an 8 × 8 pixel block boundary, but matlab bottom and correct edge needn’t achieve this. This limits matlab feasible lossless crop operations, and likewise prevents flips and rotations of an image whose backside or correct edge doesn’t lie on engineering block boundary for all channels as a result of matlab edge could become on top or left, in which – as aforementioned – engineering block boundary is obligatory.